JP5403655B2 - Wave making apparatus, wave making method and program - Google Patents

Description

  The present invention relates to a wave making apparatus, a wave making method, and a program for artificially generating waves, for example, and in particular, considering wave extinction as a kind of wave making, including reflection when individual wave making machines vibrate. The present invention relates to a wave making device, a wave making method, and a program capable of constructing a desired wave field by superimposing wave fields after calculating the obtained wave field with high accuracy.

  In the marine engineering field, there is an increasing demand for evaluating ship performance in the actual sea area. In order to grasp the actual sea area performance of a ship in an aquarium test, it is necessary to reproduce multidirectional irregular waves and eliminate the influence of reflection so that a long experiment time can be taken.

  Among these requirements, for example, there are technical ideas disclosed in Patent Documents 1 to 4 as an attempt to create a wave by a predetermined control method or eliminate the influence of reflection.

  Patent Literature 1 is a wave making device that outputs a plurality of wave making control signals based on a corresponding one of a plurality of wave making signals, and simultaneously operates a wave making plate while performing detailed wave making calculations. Real-time control is performed. However, in the technical idea according to Patent Document 1, for example, as shown in FIG. 12, in the feedback unit 95, the total sum of time derivatives of X for each frequency (for each i) is X of the actual servomotor 17. The control unit 96 performs feedback control of adjusting the gain and controlling the servo motor 17 based on the difference, compared with the time differential feedback signal.

  Japanese Patent Laid-Open No. 2004-260688 efficiently absorbs irregular reflected waves even when a multidirectional irregular wave is generated and simulated, and the wave field where the period and the wave direction vary irregularly as in the actual ocean. It is intended to ensure accuracy reproduction. However, even in the technical idea according to Patent Document 2, the wave height is observed and feedback control based on the wave height is added to each wave-making plate.

In Patent Document 3, the damping force and the restoring force coefficient are set to values determined by the wave frequency for the purpose of absorption to prevent wave reflection. However, even in the technical idea according to Patent Document 3, a wave command signal, a value obtained by multiplying a signal corresponding to the motion displacement of the wave generator by a restoring force coefficient, and a signal corresponding to the motion speed of the wave generator. The feedback control based on the sum of the value multiplied by the damping force coefficient is applied.

Patent Document 4 corrects a basic drive signal based on a damping force and restoring force signal of a wave forming body and a driving force signal. Also in the technical idea according to Patent Document 4, a force acting on the wave-making body is obtained, and this is compared with a command driving force, and feedback control for compensating a required driving force is added.
JP 2003-177073 A JP-A-6-11411 Japanese Patent Laid-Open No. 2-307031 JP 63-273033 A

  As seen above, the conventional techniques or technical ideas including the above-mentioned patent documents have been described in order to obtain a wave-dissipating effect and an absorption effect for canceling a wave colliding with a tank basin or wave-making plate. The optimum value is calculated by calculating the behavior of the corrugated plate by a predetermined mathematical process, and there is no area in which closed loop control (feedback control) is performed using the optimum value. In particular, in each of the above Patent Documents 3 and 4, the object of feedback control is a reflected wave of the wave making plate, and this reflected wave is detected as a wave making device and feedback control is applied to the wave making mechanism. This is to absorb the reflected wave in the final output system. Therefore, none of these conventional techniques can perform open loop control in the final output system called wave generation.

  In addition, since each wave-making plate is configured to recognize reflected waves, when a plurality of wave-making plates constitute the entire system, one wave-making plate includes reflections from other wave-making plates. Therefore, it is difficult to form a precise wave taking into consideration the influence of a wave colliding from an oblique direction even in the reflected wave.

  The present invention solves the above-mentioned problems in the prior art, and reflects the influence of one wave-making plate on the entire area including reflection from other wave-making plates while eliminating feedback control. It is an object of the present invention to provide a wave making device, a wave making method, and a program that can generate an accurate wave. A more detailed object of the present invention is to calculate the behavior of each wave-making plate corresponding to the desired wave-making by a predetermined mathematical process, and superimpose the results, thereby taking into account the influence of reflected waves. It is an object to provide a wave making device, a wave making method, and a program capable of generating a wave.

  In order to solve this problem, a wave making device according to the present application includes a plurality of wave making plates arranged with respect to a wave making water surface field, a plurality of driving means for respectively driving the plurality of wave making plates, Wave-making condition setting means for setting conditions, and the velocity potential produced by each wave-making plate of the plurality of wave-making plates in consideration of the influence of reflection in the wave-making water surface field are calculated in advance, and all the plurality of waves A predetermined potential formula based on a velocity potential database that stores calculation results for the plate, a wave generation condition set by the wave generation condition setting means, and data of the velocity potential database corresponding to the set wave generation condition According to the calculation means, a storage device for storing time series data of individual wave-making plate positions as a calculation result of the calculation means, and the plurality of driving means based on the time series data of the storage device It constituted a control means for controlling.

  The waves include regular waves, irregular waves, and concentrated waves. The regular wave is a wave in one direction and has a constant wave height and period, and the irregular wave is a sum of a plurality of regular waves. On the other hand, the concentrated wave is determined by determining a spatial wave height distribution at each time in time series and combining them.

  In the above, the wave plate means a plate shape having a predetermined shape, size and weight, but there is no particular limitation on the size, material, shape, etc., and a substantially plate shape having a certain rigidity. Any object can be used as long as it has a function of generating waves. In particular, the material of the wave plate is preferably a hard material having a rust-proofing effect, such as metal (for example, iron, steel, etc.), synthetic resin, ceramic, etc., but is not limited thereto. It will never be done. As a kind of wave-making plate, a flap type that behaves using one joint part, a piston type that is driven in parallel with the drive of the linear drive part, and a plunger type that makes the wave-making board behave up and down, Or any of the connection type which connects a some wave-making board and controls the behavior dynamically may be sufficient, or those arbitrary combinations may be sufficient.

  In the present application, it is assumed that a plurality of wave-making plates are arranged with respect to the wave-making water surface field, but there is no limitation on the interval between the arrangement and the number of wave-making plates. However, an arrangement that does not directly affect each wave-making plate is preferable.

  The driving means refers to a device having a function of supplying power for generating a wave by the wave making plate, and includes a joint portion (including a hinge and a joint) for vibrating the wave making plate, and the wave making plate. A linear drive unit for driving the wavefront by front / rear, up / down, left / right, or a combination thereof, a rail unit that can be driven by the linear drive unit, and a limiter unit that limits the drive range of the linear drive unit , A position detection unit for detecting the drive position of the linear drive unit, and an electric unit (for example, including a motor and a motion conversion mechanism) for driving the wave making plate and / or the linear drive unit, or a combination thereof Specifically, it is realized by a machine, an apparatus, a device having these functions, or a part or combination thereof. In addition, the behavior of the wave plate is a flap type that moves using a single joint, a piston type that drives in parallel with the drive of the linear drive unit, and a plunger type that moves the wave plate up and down like a wedge. Alternatively, it may be any of a connection type in which a plurality of wave plates are connected to dynamically control the behavior, or any combination thereof.

  The wave-making condition setting means is a condition for generating various waves according to at least one of a wave wavelength, amplitude, wave height, wave direction, waveform, wave shape, wave velocity, period and phase, or a combination thereof. Specifically, a machine, a device, a component having these functions, an algorithm for causing a computer to execute these functions, a program for executing this algorithm, or this program Is implemented by a computer including the above, a mounting medium, a ROM (read-only memory), or a computer or a part thereof incorporating or incorporating these. In addition, as such a condition, a condition for calculating an optimum value by a predetermined mathematical process (for example, including matrix calculation or complex number calculation) is shown.

  The velocity potential is a physical quantity related to the wave whose differential value is the fluid velocity, and the velocity potential data is a predetermined value using a boundary element method (described later) for any point in the target wave field. The velocity potential calculated by the calculation of

  The velocity potential database is a storage medium (hardware) that has a function of storing velocity potential data and has a predetermined capacity, or a concept that includes data recorded as magnetic information on such a storage medium, and realizes this function. This is a concept that includes a recording medium in which a program or software to be executed is mounted in an executable format.

  The calculation means means a function having a function of performing calculation processing by a predetermined calculation method using the wave generation conditions set by the wave generation condition setting means and velocity potential data corresponding to the wave generation conditions. Machines, devices, components having these functions, or algorithms for causing a computer to execute these functions, programs for executing this algorithm, software including this program, mounted media, ROM (read only memory), or these It is realized by an on-board or built-in computer or its part.

  The storage device is a storage medium (hardware) having a function of storing time-series data of individual wave-making plate positions, which is a calculation result of the calculation means, and recording as magnetic information on the storage medium. This is a concept that includes a built-in recording medium in which a program or software that realizes such a function is mounted in an executable format.

  The control means indicates a function having a function of controlling the drive means based on time-series data stored in the storage device. Specifically, a machine, a device, a component having these functions, or such a function is provided. The present invention is realized by an algorithm to be executed by a computer, a program for executing the algorithm, software including the program, a mounting medium, a ROM (read only memory), or a computer having or incorporating these, or a part thereof.

  By having such a configuration, the wave condition setting means sets various wave conditions that form the environmental conditions and the physical conditions that make up the desired wave. After storing in the velocity potential database, the time series data of each wave-making plate position is calculated in the calculation means according to a predetermined calculation formula based on the set wave generation conditions and the velocity potential data stored in the velocity potential database. A desired wave can be generated by controlling the driving means by the control means based on the time-series data stored in the storage device and causing the wave-making plate to behave.

  In the above configuration, the wave making device according to the present invention has wave spectrum data measured in an actual water surface field, and the calculation result according to the predetermined calculation formula based on the setting of the wave making condition setting means Further, the control means may control the plurality of driving means based on the application result obtained by applying the spectrum data.

  Here, the actual water surface means, for example, the Pacific Ocean, the Atlantic Ocean, the Sea of Japan and all other oceans and sea areas. As the data relating to the actual water surface field, for example, data obtained by measuring various wave type data (for example, spectrum, that is, the intensity for each wavelength and wave direction) with a measuring device can be cited. It can be held in advance in a storage device (including a database).

  Moreover, the wave generated with the spectral data of the wave measured by the component value set arbitrarily or the water surface field generated based on the component value is also included in the actual water surface field. In other words, it may be a component that does not exist in a given ocean or sea area, or it may be a component value related to a unique wave, and regular waves or irregular waves can be freely generated by superimposing regular waves or irregular waves having each component. You can make waves.

  By providing such a configuration, a predetermined wave-making condition and spectrum data that have been set are applied, and the drive means is controlled by the control means based on the application result. Therefore, the wave-making plate can be made to perform a desired behavior.

  In the above configuration, in calculating the velocity potential, the direction of the wave, one of the wavelength or period of the wave, and the maximum amplitude of the wave-making plate are designated, and the harmonic wave is oscillated with the same period as the wave for each wave-making plate. It is good also as a structure which calculates the velocity potential of the whole said wave-making water surface field which considered the influence of the reflection at the time of making it based on the boundary element method.

  Harmonic vibration means that a certain amount of value at time t undergoes a sinusoidal time variation represented by Asin (ωt + α) by one frequency ω. Here, A represents the amplitude, and α represents the phase shift.

  The boundary element method is a function F (x, y) satisfying a differential equation with good properties inside a certain region Ω, and when only a value at the boundary δΩ or a gradient value is given, A method for determining a value. In the present application, the conditions are converted into simultaneous equations related to values at the boundary by Green's formula and solved, and the internal values are calculated again by Green's formula.

  In the above configuration, in calculating the velocity potential for each wave-making plate, the influence of reflection when harmonically oscillating with the same period as the wave is included, and the boundary element method is used. The velocity potential of the entire wave surface field is accurately determined for each plate, and this is performed on the wave plate of the entire wave surface field.

  Further, in the above, the calculation of the calculation means approximates the harmonic vibration field corresponding to the wave generation condition by a complex linear sum in which absolute values of the data of the velocity potential database corresponding to the wave generation condition are limited. In this configuration, simultaneous equations relating to the amplitude and / or phase of each wave-making plate are solved.

  Here, the harmonic vibration field means a field where the entire system is in harmonic vibration.

  The complex linear sum means that a vector is multiplied by a complex coefficient to obtain a sum.

  With the above configuration, as a calculation method, the wave-making condition and the velocity potential field data created by each wave-making plate corresponding to the wave-making condition are regarded as one vector, and the desired wave-making water surface is obtained by their complex linear sum. Since the calculation method of solving the simultaneous equations related to the amplitude and phase of the entire wave-making plate that approximates the velocity potential of the field is adopted, it is mathematically possible to make an accurate wave at any point of the wave-making water surface field. It becomes possible, and accurate wave generation without feedback is possible.

  Further, in the above configuration, a wave plate position time series database for storing calculation results for predetermined wave making conditions as time series data of the positions of the individual wave making plates is further provided, and set by the wave making condition setting means When the generated wave forming conditions substantially coincide with the predetermined wave forming conditions, the control means controls the plurality of driving means using the time series data of the wave making plate position time series database. It can also be set as a simple structure.

  The wave-making plate position time-series database refers to a database in which the calculation results for a given wave-making condition are data for each wave-making plate position and time-dependent data in the wave-making water surface field. A storage medium (hardware) having a function to store such data or a concept including data recorded as magnetic information on the storage medium, and a program or software that realizes such functions is made into an executable format. This is a concept that includes a built-in recording medium.

  By constructing a wave plate position time series database with the above configuration, data related to the time series calculation results of the wave plate at each position of the wave surface is recorded as a database, and from now on, if necessary It can be read and used as needed. In particular, if data that matches the set wave-making conditions is read from this wave-plate position time-series database and the drive means is controlled on the basis of this data to generate the desired wave generation, Can be realized accurately at all times.

  In order to solve the above problems, a wave making device according to the present application includes a plurality of wave making plates arranged with respect to a wave making water surface field, a plurality of driving means for respectively driving the plurality of wave making plates, and a time Wave-making condition setting means for setting wave-making conditions for each position, and for each time of each wave-making plate of the plurality of wave-making plates considering the influence of reflection in the wave-making water surface field, for each position Velocity potential time-series database that stores the results calculated for all the plurality of wave-making plates as time-series data in advance, and the wave-making conditions set by the wave-making condition setting means and this set A calculation means for performing calculation according to a predetermined calculation formula based on the data of the velocity potential time series database corresponding to the wave-making condition, and a calculation result of the calculation means corresponding to the setting in the wave-making condition setting means. A storage device for storing the time-series data of the wave plate position, characterized in that a control means for controlling the plurality of drive means based on time series data of the storage device.

  The velocity potential time-series data is obtained by calculating the velocity potential for each time and position of the wave-making plate after instantaneously making a constant displacement with respect to each of the potential potentials, and obtaining vector data for each time and each position. The speed of each wave-making plate at all times is set as an unknown, and the result obtained by multiplying the vector by the vector is made closer to a vector in which the desired wave speed potential is arranged for each time and each position. Thus, a desired wave can be formed, and even a concentrated wave that cannot be expressed as a harmonic vibration can be formed.

  Further, the velocity potential time series database refers to a database related to the above-described velocity potential time series data, and specifically, a storage medium (hardware) having a function of storing such data and having a predetermined capacity or such storage. The concept includes data recorded as magnetic information on a medium, and includes a concept that includes a recording medium in which a program or software for realizing such a function is mounted in an executable format.

  With the above configuration, various wave-making conditions are set in the wave-making condition setting means for each time and for each position, and the speed potential for each time and position for all wave-making plates that are calculated in advance is used as data for the speed potential. Can be stored in a series database. On the basis of this, using the wave potential conditions for each time and position that are arbitrarily set and the velocity potential time series data stored in the velocity potential time series database, the computing means can perform individual wave making according to a predetermined formula. The time series data of the plate position can be calculated and the calculation result can be stored in the storage device. Based on the stored time-series data, the control means controls the driving means to cause the wave-making plate to behave, so that a desired concentrated wave can be accurately reproduced and generated.

  In the above configuration, the control means corrects time series data of the storage device or time series data of the wave plate position time series database based on drive characteristics obtained in advance of the plurality of drive means and / or A configuration may be adopted in which correction means are added to control the driving means.

  For example, in the past, there may be a situation in which the control results relating to the individual wave generators vary due to the difference in time constants relating to the control means or the drive means and / or the occurrence of the delay type dead time. If a desired wave is generated by optimally controlling the driving means by the control means, it may be difficult to generate the desired wave if such a situation is left unattended.

  Therefore, in the present application, the parameters related to the drive characteristics are adjusted so that optimum control can be performed by correcting predetermined time-series data necessary for the drive characteristics and / or adding correction conditions with the above configuration. It is possible to eliminate variations in the control results of individual wave making devices and prevent unexpected variations and problems in wave making. As a means for such correction, for example, a predetermined time constant (stored in a storage device) is added in advance as a correction condition (including multiplication of a correction coefficient) in preparation for a difference in time constant, or a delay type waste. By correcting the rotation speed and rotation speed of the motor related to the drive means at the time of occurrence, it is possible to suppress the occurrence of abnormalities due to control fluctuations and fluctuations of individual wave generators, and to perform optimal control. It can be realized and a desired wave can be generated.

  Further, in the above configuration, the control unit may include a reset unit and reset the plurality of driving units when starting the driving of the plurality of driving units.

  Originally, in order to generate a desired wave, it is necessary to stop the driving means related to each wave making device in a predetermined state so as not to perform useless behavior after the processing of the optimal control result is completed. is there. That is, in order to generate a desired wave again after the operation, the driving means is restored to the initial state before driving, or predetermined parameters (for example, wave forming conditions and time) for driving each driving means are used. It is necessary to reset or initialize.

  Therefore, in the present application, since the control means has a reset unit with the above configuration, each driving means is reset or initialized with respect to each driving means regardless of the parameter that caused the previous behavior. This makes it possible to align the initial positions of the plurality of wave-making plates and the positions at predetermined stages, and generate a desired wave without affecting the subsequent driving. For example, a position sensor unit or limiter for recognizing the behavior of the linear drive unit related to the driving means is provided, and the electric unit is stopped or waited when the position sensor unit or limiter recognizes a predetermined position. Good. It is also possible to detect the position of the wave plate linearly by the position sensor unit and to adjust the wave plate position from time to time by collating with the time series data of the wave plate. Note that such a mechanism is feedback control for resetting a plurality of driving means, not feedback control for generating waves. That is, for example, in Patent Documents 3 and 4 described above, in order to absorb the reflected wave in the final output system, the reflected wave is detected as a signal of the wave making device and feedback controlled, whereas in the present invention, In order to perform open-loop control in the final output system called wave generation and to move the wave generator as desired, feedback control is performed using the signal (position detection sensor, etc.) of the wave generator as a device.

  Further, when the electric unit is, for example, a stepping motor, the position of the linear drive unit can be detected based on the number of pulses of the stepping motor, so that it can be replaced with a position sensor unit that recognizes the drive of the linear drive unit.

  Moreover, in order to solve the above-mentioned problem, the wave making method according to the present application has the effect of reflection in the wave making water surface field produced by individual wave making plates of a plurality of wave making plates arranged with respect to the wave making water surface field. A step of calculating a velocity potential in consideration, a step of storing the result of calculation of the velocity potential for all the plurality of wave-making plates in a database, a step of setting wave-making conditions, Calling the corresponding data from the database according to the wave condition, performing a calculation based on a predetermined calculation formula according to the wave forming condition and the called data, and each wave forming plate position as a result of the calculation The method includes a step of storing time series data and a step of driving and controlling the plurality of wave-making plates based on the time series data.

  By providing the above configuration, the velocity potential is calculated in advance in consideration of the influence of the reflected wave generated by the behavior of the wave-making plate according to another wave-making device, and the calculation result is stored in the database, and the wave-making conditions are After setting, the data stored in this database is called, and the calculation is performed according to the called data and wave forming conditions, and then the calculation results are stored as individual time series data. The wave making plate can be driven and controlled based on the time series data. As a result, the velocity potential of each wave-making plate is accurately determined and converted into data, so in any case, the same wave-making can be accurately reproduced by reading such data. It becomes.

  Further, in the above configuration, the step of performing the calculation and / or the step of controlling the driving is based on the spectrum data of the waves measured in an actual water surface field and the setting of the step of setting the wave-making conditions. The plurality of wave-making plates may be controlled based on the application result obtained by applying the spectrum data to the calculation result according to the calculation formula.

  By providing such a configuration, in the step relating to the above-described calculation, calculation according to wave spectrum data and wave-making conditions measured in an actual water surface field is possible, and the control means based on the calculation result Because it is possible to control the driving means and make the wave plate behave, wave generation that accurately reflects the actual sea area is realized, and such calculation results are stored in the storage device, so that the wave generation is reproduced. Sexuality can be increased.

  In the above configuration, in calculating the velocity potential, the direction of the wave, one of the wavelength or period of the wave, and the maximum amplitude of the wave-making plate are designated, and the harmonic wave is oscillated with the same period as the wave for each wave-making plate. It is good also as a structure which calculates the velocity potential which also considered the influence of the reflection of the said whole wave-making water surface field when making it based on the boundary element method.

  By having such a configuration, in the calculation of the velocity potential for each wave-making plate, the influence of reflection when harmonically oscillating with the same period as the wave is included, and the boundary element method is used to Since the velocity potential is required for the wave-making plate of this type and this is performed on the wave-making plate of the entire wave-making water surface field, the wave making of the desired wave shape at any position of the wave-making water surface field It can be accurately realized by superposition of potentials.

  Further, in the above configuration, the step of performing the calculation is approximated by a complex linear sum in which the absolute value of the database data corresponding to the harmonic vibration field and the wave generation condition corresponding to the wave generation condition is limited, It is good also as a structure which solves simultaneous equations regarding the amplitude and phase of each wave-making plate.

  By providing such a configuration, the above-described calculation step considers the wave-making condition and the velocity potential field data created by each wave-making plate corresponding to this wave-making condition as one vector, and their complex linear sum. The calculation method of solving the simultaneous equations related to the amplitude and phase of all wave-making plates, which approximates the velocity potential of the desired wave-making water surface field, was adopted. It is possible to do this mathematically, and it is possible to accurately generate a desired wave without relying on feedback.

  In order to solve the above-mentioned problem, the wave making method according to the present application also includes the influence of reflection in the wave making water surface field produced by individual wave making plates of a plurality of wave making plates arranged with respect to the wave making water surface field. A step of calculating velocity potential for each time and position in advance, a step of storing the result of calculating the velocity potential for each time and position for all the plurality of wave-making plates in a database as time series data, and time A step of setting a wave-making condition for each position, and a step of performing a calculation according to a predetermined calculation formula based on the set wave-making condition and time series data of the database corresponding to the set wave-making condition And a step of storing time-series data of wave-making plate positions, which are calculation results of the calculation means, and a step of driving and controlling the plurality of wave-making plates based on the time-series data. Composed of Te.

  By having such a configuration, various wave-making conditions are set in advance for each time and position, and the speed potential for each time and position made by all wave-making plates calculated in advance is used as data in the speed potential time-series database. Save it. In addition, using the wave potential conditions for each time and position set arbitrarily and the velocity potential time series data stored in the velocity potential time series database, each wave plate position is Time series data is calculated, and the calculation result is stored in a storage device. Based on this accumulated time-series data, drive control of a plurality of wave-making plates is performed, so that even wave-making related to desired concentrated waves can be accurately performed by superimposing time-series velocity potentials for each point. Can be reproduced and generated.

  In order to solve the above-mentioned problem, the program according to the present application specifies a direction of a wave, a wavelength or a period of the wave, and a maximum amplitude of the wave-making plate with respect to the wave-making water surface field, Boundary factors for the entire wave surface field including the velocity potential considering the effect of reflection when individual wave plates of a plurality of wave plates arranged with respect to the wave surface are subjected to harmonic oscillation at the same period as the wave. The method is characterized by comprising a step of calculating based on a law and a step of storing the calculated result in a database.

  By having such a configuration, the velocity potential of each wave-making plate becomes highly accurate, reflecting the influence of reflections harmoniously oscillated at the same period as the wave, and the velocity potential is bounded by the entire wave surface field. Since the calculation is made based on the element method, in order to obtain a desired wave at an arbitrary position, the velocity potentials related to the position may be superimposed. Moreover, since this is stored in the storage device as a database, data corresponding to various situations / scenes is stored in advance, so that the wave generation suitable for every situation is read from the database, and control based on this is performed. It can be easily realized by the operation.

In order to solve the above problem, the wave making program according to the present application includes a step of inputting a wave making condition set by a wave making condition setting unit in a computer, and a wave making water surface field according to the inputted wave making condition. In this step, the velocity potential produced by each wavemaking plate of the plurality of wavemaking plates in consideration of the influence of reflection is calculated in advance, and the corresponding data is retrieved from the velocity potential database storing the results for all of the plurality of wavemaking plates; A step of performing a calculation according to a predetermined calculation formula based on the input wave-making conditions and the called data, a step of storing the calculation result as time-series data of individual wave-making plates, And a step of outputting as a driving condition of a driving means for driving the plurality of wave-making plates based on the sequence data.

  By having such a configuration, wave forming conditions are input via the wave forming condition setting means, predetermined velocity potential data is called from the velocity potential database, and based on the input wave forming conditions and the called velocity potential data. A series of processes for performing a calculation, storing the calculated result as time-series data, and outputting the driving condition of the driving means based on the stored time-series data can be realized by a predetermined computer. Therefore, it is possible to generate a desired regular wave or irregular wave through control by a computer.

  In order to solve the above-mentioned problem, the program according to the present application includes a step of causing a computer to input a wave-making condition for each time and position set by the wave-making condition setting means, and the inputted wave-making condition A step of calculating a velocity potential for each time and position in consideration of the influence of reflection in the wave-making water surface field produced by individual wave-making plates of a plurality of wave-making plates arranged with respect to the wave-making water surface field corresponding to And a step of storing the velocity potential for each time and position for all of the plurality of wave-making plates in a velocity potential time-series database.

  By having such a configuration, the time-series data of velocity potential of each wave-making plate is the velocity potential at each time and position of each wave-making plate, and the influence of reflection that is oscillated in the same cycle as the wave. Since the reflected high accuracy is calculated and calculated for the entire wave surface based on the boundary element method, in order to obtain a desired wave for any position, the velocity potential at that position What is necessary is just to superimpose series data. Moreover, since it can be stored in a storage device as a database, data corresponding to various situations / scenes is stored in advance, so that waves corresponding to all situations are read from the database, and control based on this is performed. It can be easily realized by an operation of performing.

  In order to solve the above-described problem, the wave-making program according to the present application includes a step of inputting wave-making conditions for each time and position set by a wave-making condition setting unit in a computer, and the inputted wave-making conditions. The velocity potential for each time and position is calculated in advance, taking into account the effects of reflection in the wave-making water surface field created by individual wave-making plates of a plurality of wave-making plates arranged for the wave-making water surface field corresponding to the conditions. A predetermined calculation based on the speed potential time series database stored for all of the plurality of wave making plates, the wave making conditions set by the wave making condition setting means, and the time series data of the called speed potentials A step of performing an operation according to an expression, a step of storing time-series data of a calculation result of the calculation step, and a step of calling the time-series data of the calculation result , Wherein the operating and a step of outputting a driving condition of the driving means for driving the plurality of wave-plate according to time-series data of the called operation result.

  By having such a configuration, the wave-making condition setting means sets wave-making conditions for each time and position, and the velocity potential is calculated in advance for each time and position in consideration of the influence of reflection on the wave-making. Stored in the potential time-series database, calculated based on the set wave-making conditions and the stored velocity potential time-series data, memorized the time-series data of the operation results, called the stored time-series data and called A series of processes for outputting time-series data as a driving condition of the driving means can be realized by a predetermined computer. Therefore, a desired concentrated wave can be generated through control by a computer.

  According to the present application, various wave-making conditions are set in the wave-making condition setting means, the velocity potentials created by all wave-making plates calculated in advance are stored in the velocity potential database, and the set wave-making conditions and velocity potential database are stored. Based on the stored velocity potential data, the time series data of each wave-making plate position is calculated by the calculation means according to a predetermined calculation formula, and the drive means is controlled by the control means based on the time series data stored in the storage device. Since the wave plate is controlled to be controlled, a desired wave can be generated. Accordingly, characteristics of the generated wave (for example, including wave height, wavelength, and pressure applied to the wave forming plate) are measured, and the driving means is performed without performing feedback control using the measured value as a parameter relating to the control means. Can be optimally controlled to generate a desired regular wave or irregular wave. Also, instead of using only individual wave plates or wave plates that are adjacent to each other for wave cancellation, a predetermined calculation is performed in consideration of the influence of the reflection of all of the wave plates. For example, it is possible to form waves that accurately reflect the wave forming characteristics of the entire aquarium system, for example, not only can the wave-dissipating effect of the entire wave aquarium be obtained to significantly improve the wave-dissipating efficiency, The desired wave can be generated without being affected by the shape of the wave, the direction of the generated wave, and the like.

  Further, according to the present application, the spectrum data of the wave measured in the actual water surface field is held, and the spectrum data is obtained by applying the spectrum data to the calculation result according to the predetermined calculation formula based on the setting of the wave generation condition setting means. Since the control means controls a plurality of driving means based on the applied result, the predetermined wave-making conditions and spectrum data that have been set are applied, and the driving means is controlled by the control means based on the application result. To make the wave plate behave. Therefore, for example, a wave component relating to the predetermined ocean can be artificially generated using the wave component relating to the predetermined ocean as spectrum data. In addition, by setting an arbitrary value as spectrum data, even a wave that cannot exist in the natural world can be artificially generated.

  In addition, according to the present application, the velocity potential of the entire wave surface field can be calculated based on the boundary element method in consideration of the influence of reflection when harmonic waves are oscillated in the same cycle as each wave. . Therefore, for example, PID control (a type of feedback control, in which the generated wave characteristics are used as an output value and controlled by inputting the output value as a control parameter of the drive unit as an input value) In the feedback control including the deviation of the output value and the target value, the integration thereof, and the differentiation), the feedback control including infinite number of reflections occurs in a complex-shaped water tank, but when the boundary element method is used, The complex wave field can be calculated accurately and in a short time across the entire tank, and by combining it with the appropriate amplitude and phase difference, accuracy can be substituted for feedback from wave height data at the periphery of the conventional tank. A high wave-dissipating method can be constructed.

  Further, according to the present application, in the calculation of the calculation means, the harmonic vibration field corresponding to the wave generation condition and the complex linear sum that limits the absolute value of the velocity potential database data corresponding to the wave generation condition, Solves the approximate simultaneous equations for the amplitude and phase of a wave plate. At this time, by using the complex linear sum, an equation for determining the amplitude and phase of the wave-making plate can be easily expressed, which is convenient for building a program.

  Further, according to the present application, the time series data of the wave-making plate positions can be used as needed by constructing the wave-making plate position time-series database of the positions of the individual wave-making plates with the calculation results for the predetermined wave-making conditions. In particular, if it matches the set wave-making conditions, the predetermined data stored in this wave-plate position time-series database is read and the drive means is controlled by the control means to make the wave-making plate behave as desired. Can be generated. Therefore, for the typical water surface field, that is, the frequently generated wave, the calculation result by the calculation means is stored in the wave plate position time series database. By using position time-series data, it is possible to realize wave making with high reproducibility and to perform quick control.

  In addition, according to the present application, various wave-making conditions are set in the wave-making condition setting means for each time and for each position, and the velocity potential for each time and for each position made by all wave-making plates calculated in advance is set as a time series. It is stored in the velocity potential time series database, and each individual construction is performed by a calculation means according to a predetermined calculation formula based on the set wave generation conditions for each time and position and the velocity potential time series data stored in the velocity potential time series database. By calculating the time series data of the wave plate position and controlling the driving means by the control means on the basis of the time series data stored in the storage device, the wave making plate behaves, at any point of the wave making water surface field A desired concentrated wave can be generated. That is, in the state where the wave surface is stationary, the wave spread from the vicinity of the wave plate to the far side is accumulated as velocity potential time-series data, and the velocity potential at the specific position created by each wave plate is It is possible to generate a desired wave by superimposing the series data. Therefore, for example, a concentrated wave by one paddle (for example, including a concentrated arc shape or a flower shape), a concentrated wave by a half paddle (for example, including a concentrated wave generated from three directions), or a set of concentrated points. Patterns and characters (eg, human face, animal, character face, kana, katakana, romaji, greek, kanji, numbers, alphanumeric characters, kanji and all other letters or numbers or combinations thereof) A concentrated wave that expresses a special waveform that cannot be expressed by regular waves and irregular waves can be generated artificially. In addition, it is not a wave-making method that measures the external force including the reflected wave and the position of the wave-making plate and generates a concentrated wave by driving the wave-making plate by feedback control. Therefore, a desired concentrated wave can be generated more accurately.

  Further, according to the present application, the control means corrects the time series data of the storage device or the time series data of the wave plate position time series database based on drive characteristics obtained in advance of the plurality of drive means and / or correction conditions. Is added to control the driving means to correct predetermined time-series data necessary for driving characteristics and / or add correction conditions and adjust parameters related to driving characteristics so that optimum control can be performed. A desired wave can be generated. For example, in preparation for a difference in time constants, a predetermined time constant is stored in a storage device in advance to add a correction condition (for example, including multiplication of a correction coefficient), or a motor related to a driving unit when a delay type dead time occurs. By correcting the number of rotations and the rotation timing, it is possible to suppress variations in control related to individual wave making devices, realize optimal control, and generate desired waves. Therefore, without depending on the reliability of the data of the time series data itself, it is possible to always generate a desired wave by maintaining the optimality of control by adding data correction and correction conditions according to the drive characteristics as necessary. It can be generated with certainty.

  Further, according to the present application, the control unit includes a reset unit, and at the start of driving of the plurality of driving units, by resetting or initializing the plurality of driving units, Regardless of the parameters that cause the behavior, the initial positions of the plurality of wave-making plates and the positions at predetermined stages can be aligned, and a desired wave can be generated without affecting the subsequent behavior. It is also possible to detect the position of the wave plate linearly by the position sensor unit and to adjust the wave plate position from time to time by collating with the time series data of the wave plate. Note that such a mechanism is feedback control for resetting a plurality of driving means, not feedback control for generating waves. That is, for example, in Patent Documents 3 and 4 described above, in order to absorb the reflected wave in the final output system, the reflected wave is detected as a signal of the wave making device and feedback controlled, whereas in the present invention, In order to perform open-loop control in the final output system called wave generation and to move the wave generator as desired, feedback control is performed using the signal (position detection sensor, etc.) of the wave generator as a device.

  In addition, according to the present application, the velocity potential is calculated in advance in consideration of the influence of the reflected wave generated by the behavior of the wave-making plate according to another wave-making device, the calculation result is stored in the database, and the wave-making conditions are set. Then, the data stored in the database is called, the calculation is performed according to the called data and the wave making conditions, the calculation results are stored as individual time series data, and the wave making plate is stored based on the stored time series data. Since the drive can be controlled, the characteristics of the generated wave (for example, including the wave height and wavelength) are measured, and the drive means is performed without performing feedback control using the measured value as a parameter relating to the control means. Can be optimally controlled to generate a desired regular wave or irregular wave. Also, rather than using only individual wave plates or wave plates that are adjacent to each other, the effects of wave absorption can be achieved for the entire aquarium by performing predetermined calculations in consideration of the effects of reflection using multiple wave generators. Therefore, the wave-dissipating efficiency can be remarkably improved, and a desired wave having an arbitrary wave direction can be produced in an arbitrary-shaped water tank.

  Further, according to the present application, the step of performing the calculation or the step of controlling the driving is performed according to a predetermined calculation formula based on the spectrum data of the waves measured in the actual water surface field and the setting of the step of setting the wave-making conditions. The plurality of wave-making plates are controlled based on the application result obtained by applying the spectrum data to the calculated result. In the step related to the calculation described above, the calculation may be performed according to the spectrum data of the wave measured in the actual water surface field and the wave generation conditions, and the drive unit is controlled by the control unit based on the calculation result. The plate can behave. Therefore, for example, the wave component relating to the predetermined ocean can be artificially generated using the wave component relating to the predetermined ocean as spectrum data. Further, by setting an arbitrary value as spectrum data, a wave that cannot exist in the natural world can be artificially generated.

  Further, according to the present application, in calculating the velocity potential, the direction of the wave, one of the wavelength or period of the wave, and the maximum amplitude of the wave-making plate are specified, and the harmonic wave is oscillated with the same period as the wave for each wave-making plate. Based on the boundary element method, the velocity potential is calculated considering the influence of the reflection of the entire wave surface. Since infinite number of reflections occur in a complex-shaped water tank, PID control is performed by calculating the generated wave characteristics as an output value and inputting the output value as an input value to a control means that controls the drive means. Including feedback control, it is necessary to control each time, and it may be difficult to predict the steady state, and it may take time to converge to the steady state. It can be calculated accurately and in a short time throughout, and by combining it with appropriate amplitude and phase difference, a highly accurate wave-dissipating method can be constructed to replace the feedback from the wave height data around the conventional aquarium. be able to.

  Further, according to the present application, the step of performing the calculation is approximated by a complex linear sum that limits the absolute value of the harmonic vibration field corresponding to the wave-making condition and the data of the database corresponding to the wave-making condition. By solving simultaneous equations relating to the amplitude and phase of the wave-making plate, it is possible to obtain an optimum calculation result by the calculation means, so that a desired wave can be generated. At this time, by using the complex linear sum, an equation for determining the amplitude and phase of the wave-making plate can be easily expressed, which is convenient for building a program. In this way, waves can be generated by purely algebraic means of solving the simultaneous equations that approximate the amplitude and phase of each wave-making plate using the concept of harmonic vibration field and complex linear sum. Will not occur. Furthermore, since feedback control is not performed, it is possible to generate a desired wave by controlling in the shortest time.

  In addition, according to the present application, the velocity potential is calculated in advance for each time and position, the calculated result is stored in the velocity potential time-series database, the wave generation condition is set for each time and for each position, The calculation is performed with the wave conditions and the stored time series data, and the calculation results are stored as individual time series data, and the wave making plate is driven and controlled based on the stored time series data. When the wave is stationary, the wave spread from the vicinity of the wave-making plate to the far side is accumulated as velocity potential time-series data, and the velocity potential time-series data related to each wave-making plate is overlaid to obtain the desired wave. Can be generated. Therefore, for example, a concentrated wave by one paddle (for example, including a concentrated arc shape or a flower shape), a concentrated wave by a half paddle (for example, including a concentrated wave generated from three directions), or a set of concentrated points. Patterns and characters (eg, human face, animal, character face, kana, katakana, romaji, greek, kanji, numbers, alphanumeric characters, kanji and all other letters or numbers or combinations thereof) Even if it is a concentrated wave that expresses a special waveform that cannot be expressed by regular waves and irregular waves, such as a character string by In addition, there is no need for extra equipment because it is not a wave-making system that measures the external force including the reflected wave and the position of the wave-making plate and generates a concentrated wave by driving the wave-making plate by feedback control. Therefore, a desired concentrated wave can be generated more accurately.

  In addition, according to the present application, the velocity potential of each wave-making plate is calculated based on the boundary element method for the entire wave-making water surface field, with high accuracy reflecting the influence of reflections harmonized with the same period as the wave. Therefore, in order to obtain a desired wave at an arbitrary position in the water surface field, the velocity potential associated with the position may be superimposed. Infinitely shaped tanks have innumerable reflections, so feedback control requires control each time, and steady state prediction is difficult and it may take time to reach steady state. Because the boundary element method is used, the complex wave field can be calculated accurately and in a short time throughout the tank, and combined with the appropriate amplitude and phase difference, It is possible to construct a high-accuracy wave-dissipating method that replaces feedback from wave height data. Moreover, since this is stored in the storage device as a database, data corresponding to various situations / scenes is stored in advance, so that the wave generation suitable for every situation is read from the database, and control based on this is performed. It can be easily realized by the operation. Therefore, with this program, it is possible to construct a velocity potential database as a retrofit for a system composed of predetermined information devices.

  Further, according to the present application, the wave generation condition is input via the wave generation condition setting means, the predetermined velocity potential data is called from the velocity potential database, and based on the input wave generation condition and the called velocity potential data. Since a series of processes of performing calculation, storing the calculated result as time series data, and outputting the driving condition of the driving means based on the stored time series data is realized by a predetermined computer, the generated wave The drive means is optimized by a predetermined computer equipped with such a program without performing feedback control using the measured values (including wave height and wavelength) and using the measured values as parameters for the control means. And a desired regular wave or irregular wave can be generated. Also, rather than using only individual wave plates or wave plates that are adjacent to each other, the effects of wave absorption can be achieved for the entire aquarium by performing predetermined calculations in consideration of the effects of reflection using multiple wave generators. Therefore, the wave-dissipating efficiency can be remarkably improved, and a desired wave having an arbitrary wave direction can be produced in an arbitrary-shaped water tank.

  In addition, according to the present application, the velocity potential time-series data of each wave-making plate is the velocity potential of each wave-making plate for each time and position, and the influence of reflection that is harmoniously oscillated at the same period as the wave. The reflected high accuracy is calculated and calculated for the entire wave surface based on the boundary element method, so to obtain the desired wave for any position of the water surface, The velocity potential time series data may be superimposed. In addition, since a myriad of reflections occur in a complex water tank, feedback control is necessary each time, and it is difficult to predict the steady state and it may take time to converge to the steady state. On the other hand, because the boundary element method is used, the complex wave field can be calculated accurately and in a short time throughout the tank, and combined with the appropriate amplitude and phase difference, It is possible to construct a high-accuracy wave-dissipating method that can replace the feedback from the wave height data at the section. Moreover, since it can be stored in a storage device as a database, data corresponding to various situations / scenes is stored in advance, so that wave generation suitable for every situation can be read from the database and control based on this It can be easily realized by the operation of performing. Therefore, with this program, it is possible to construct a speed potential time series database as a retrofit for a system constituted by predetermined information devices.

  Further, according to the present application, the wave-making condition setting means sets wave-making conditions for each time and for each position, and the velocity potential is calculated in advance for each time and for each position in consideration of the influence of reflection on the wave-making. Store in the potential time series database, calculate based on the set wave-making conditions and the stored speed potential time series data, store the time series data of this calculation result, call this stored time series data, Since a series of processing to output the called time-series data as the driving condition of the driving means is realized by a predetermined computer, in the state where the wave-making water surface is stationary, from the vicinity of the wave-making plate to the distant place Wave spread can be accumulated as velocity potential time-series data, and the desired potential can be generated by superimposing velocity-potential time-series data on individual wave plates. That. Therefore, by a predetermined computer equipped with such a program, for example, a concentrated wave by one paddle (for example, including a concentrated arc shape or a flower shape), a concentrated wave by a half paddle (for example, a concentration generated from three directions). Including waves), patterns and characters from a collection of concentrated points (eg people, animals, character faces, kana characters, katakana characters, roman letters, Greek letters, kanji characters, numbers, alphanumeric characters, kanji numbers, and all other Concentrated waves that express special waveforms that cannot be represented by regular waves and irregular waves, such as a character string consisting of one or a combination of letters and numbers, are generated artificially by computer control. Can do. In addition, it is not a wave-making method that generates a concentrated wave by driving the wave-making plate by feedback control and measuring the position of the wave-making plate and the external force including the reflected wave related to the wave-making plate. Therefore, a desired concentrated wave can be generated more accurately.

  The best mode for carrying out the present invention will be described below with reference to the drawings. In the following, the scope necessary for explanation for achieving the object of the present invention will be schematically shown, and the scope necessary for explanation of the relevant part of the present invention will be mainly explained, and the explanation will be omitted. Are according to known techniques.

  FIG. 1 is an overall schematic diagram showing a planar overview of a wave making device 1 according to an embodiment of the present invention. As shown in the figure, the wave making device 1 includes at least a water tank 2, a wave making machine 10, a wave making plate position time series calculation / database 20, and a wave making operation control unit 30.

  The wave making device 1 is configured to include the entire aquarium 2 having a predetermined size and shape, but the size is not limited and can be widely applied from a huge aquarium to a small vessel. Those having sufficient dimensions are preferable for the purpose of the wave-making experiment, and more preferably, the four corners of a rectangle having a depth of 4.5 m, an east-west of 80 m, and a north-south of 40 m are replaced with quadrants having a radius of about 8 m. Shall.

  The wave making machine 10 includes a wave making plate 100 and a control device 101 that controls the wave making plate 100 to perform a predetermined behavior. Generally speaking, the wave making machine 10 generates a desired wave by adaptively controlling the wave making plate 100 by the control device 101. Although there is no limitation on the interval, an arrangement that does not directly affect each wave-making plate 100 or the like is preferable.

  The wave-making plate position time series calculation / database 20 and the wave-making machine operation control unit 30 are installed in the vicinity of the water tank 2 related to the wave-making device 1, for example, a control board equipped with modules having each function, It may be realized by a computer equipped with each function.

  FIG. 2 is a device configuration diagram of the wave maker 10 according to the embodiment of the present invention. As shown in the figure, the wave making machine 10 includes at least a wave making plate 100, a control device 101, a linear drive unit 102, a limiter 103, a position detection sensor 104, a ball screw rail 105, a motor 106, and a motion conversion mechanism 107. Is done.

  The wave-making plate 100 employs a flap type here, but is a piston type that is driven in parallel with the behavior of the linear drive unit 102, a plunger type that makes the wave-making plate 100 move up and down, or a wave type. You may make it behave by any system (not shown) of the connection type which connects the board 100 in multiple numbers. The wave making plate 100 is directly connected to the linear drive unit 102 via a hinge 108. The wave making plate 100 is a plate having a predetermined shape, size and weight, but is not limited to this. For example, even if it is a curved plate, the wave making plate 100 has a shape that can substantially generate waves. Good. As a material for the wave-making plate, it is preferable to use a hard and anti-rust material such as metal (for example, iron, steel, etc.), synthetic resin, ceramic, etc., but is not limited thereto. It will never be done. A plurality of wave-making plates 100 are arranged with respect to the wave-making water surface field, and there is no limitation on the interval of the arrangement and the number of wave-making plates, but there is a direct influence such as contact with each wave-making plate. Sequences that do not give are preferred.

  The linear drive unit 102 may be any device, machine, or device that realizes a function of sliding parallel to the water surface via the ball screw rail 105 when the wave-making plate 100 is a flap type (or piston type). There are no limitations on the dimensions and materials. In addition, in the case of a plunger type, what can slide substantially perpendicularly with respect to the water surface is preferable.

  The linear drive unit 102 can move back and forth within the slidable range of the limiter 103 provided at both ends with respect to the ball screw rail 105, and the position detection sensor 104 can detect the position thereof.

  The linear drive unit 102 is a mechanism (device, component, system) in which the rotational force of the motor 106 is transmitted via the ball screw rail 105 and is driven to slide back and forth. It can be controlled by the control device 101.

  The control device 101 is a circuit (device, mechanism, component, system) having a function of controlling the motor 106 by a predetermined control method. The predetermined control method is, for example, for controlling / controlling the operation of the wave making plate 100 so as to cause a wave corresponding to the time-related data of the position of each wave making plate calculated by the arithmetic unit. Yes, for example, a hardware circuit that realizes such an operation, a program or software, a storage device in which these are installed (installed), or a recording medium in which such a program or software is installed in an executable format This is realized by a computer (including a microcomputer and a ROM). Further, a corrector that corrects predetermined data related to control so that the linear drive unit 102 is optimally driven to generate a desired wave based on characteristics of the motor 106, the motion conversion mechanism 107, the ball screw rail 105, and the like. (Not shown) and the initial position and predetermined parameters (for example, including wave forming conditions and time series data) for restoring the linear driving unit 102 to the initial state before driving or driving the linear driving unit 102. It is preferable to have a reset unit (not shown) for resetting or initializing.

  The ball screw rail 105 has a function of smoothly driving the linear drive unit 102 by rolling of the ball, and is realized by, for example, a rod-like member that is threaded. The limiter 103 divides and limits the slidable range of the linear drive unit 102, and includes an electrical switch and a mechanical stopper. The position detection sensor 104 is installed in the entire slidable range and has a function of detecting a specific position of the linear drive unit 102 with respect to the ball screw rail 105, or is installed at a predetermined portion, and the linear drive unit 102 passes therethrough. Any device may be used as long as it has a function of detecting the occurrence of the failure, and it is preferable that the driving of the linear driving unit 102 can be controlled by sensing of the position detection sensor 104 in conjunction with the control device 101. The motor 106 may be a predetermined electric motor, and may be a stepping motor, for example. When a stepping motor is used, the position of the linear drive unit 102 can be detected based on the number of pulses of the stepping motor. Therefore, the position detection sensor 104 that recognizes the drive of the linear drive unit 102 is combined with a mechanical stopper. It is no longer essential.

  FIG. 3 shows a wave generator 10, a wave plate position time series calculation / database 20, and a wave generator operation control unit in the wave generator 1 that generates a regular wave or an irregular wave according to an embodiment of the present invention. It is a functional block diagram which shows 30 functional structures. As shown in the figure, the individual wave making machine 10 is configured to include at least each of the control devices 101, the motor 106, and the wave making plate 100 described above.

  For example, the wave plate position time series calculation / database 20 realized as a form in which data is mounted on a computer and / or a storage device is used to input and set physical data, environmental condition data, etc. relating to a water tank that is a wave surface Test water tank setting unit 200 for calculating, calculation condition input unit 201-1 for inputting information as calculation conditions such as wave direction, wavelength or period, maximum amplitude of wave plate, identification of wave plate to be calculated A wave-making plate designating unit 202 for designating information, a velocity potential calculation unit 203 having a function of obtaining a velocity potential relating to the designated wave-making plate by a predetermined arithmetic expression, and storing the obtained velocity potential data for each position Speed potential database 204-1 having a function for performing presetting for inputting and setting a combination of predetermined conditions Item input unit 205, wave spectrum data unit 206 for acquiring (at least temporarily) wave spectrum data information such as actual sea area, and a function for obtaining data relating to a desired wave to be set in advance by calculation At least a wave-forming plate position time series database 208 having a function of storing and storing time-dependent data of wave-making plates for each position for generating a wave obtained by calculation, and a preset wavefront calculating unit 207 Configured.

  The wave generator operation control unit 30 realized as a control device, a computer, a mechanism, a ROM or the like that can be installed in the computer and can operate the computer in a desired manner, displays a control instruction related to the wave operation, and displays a desired instruction. Operation indicator 300 having a function of inputting instructions, wave mode setting device 301 having a function of setting modes for various waves in advance for each form, environmental conditions, physical conditions, etc. relating to wave generation Wave-making condition setting unit 302-1 having a function of inputting and setting various conditions as data, collating a preset condition with a condition relating to desired wave-making, and selecting a mode closest to the desired wave-making A preset condition matching unit 303 having a function of selecting, an arithmetic processing unit 304 having a function of calculating a temporal operation state of the wave-making plate conforming to the selected mode, In addition, a time-series data storage device 305 having a function of recording / storing time-dependent data of the wave forming plate for each position, and data relating to desired wave making or data / instruction relating to operation of the wave making device are communicated. It is configured to include at least a condition / data transmission / reception unit 306 having a function.

  The test water tank setting unit 200 related to the wave plate position time series calculation / database 20 is at least one of the shape or size of the water tank 2 and the number, position, width and direction of the wave plate 100 and all other related conditions or It has a function to input and set the combination, for example, a keyboard, a mouse, a voice input device, or a program or software for causing a computer to execute these functions, and a recording medium in which these are implemented in an executable format. It is realized by what is.

  Waveform plate position time-series calculation / calculation condition input unit 201-1 related to database 20 includes the wavelength, amplitude, wave height, wave direction, waveform, wave shape, wave velocity of wave relating to wave making (especially regular wave), It has a function of inputting and setting information related to calculation conditions for generating various waves according to at least one of a period and a phase, or a combination thereof. For example, a keyboard, a mouse, a voice input device, or these functions It is realized by a program or software to be executed by the computer, or a program that incorporates a recording medium in which these are implemented in an executable format.

  The wave-making plate position time-series calculation / wave-making plate designating unit 202 related to the database 20 has a function of designating any wave-making plate for calculating the harmonic vibration field in the water tank 2, and has these functions. By a display device (part), an input device (part), a central processing unit (part), or a program or software that causes a computer to execute such a function, or a recording medium that incorporates these in an executable format Realized.

  The velocity potential calculation unit 203 related to the wave plate position time series calculation / database 20 has a function of calculating the velocity potential related to the wave formation for each position in the harmonic vibration field in the water tank 2, and has this function. The present invention is realized by an arithmetic unit (unit), a central processing unit (unit), a program or software that causes a computer to execute such a function, or a recording medium in which these are mounted in an executable format.

  The velocity potential database 204-1 related to the wave plate position time series calculation / database 20 is a database related to velocity potential data calculated by a predetermined calculation (described later) according to the present application, and specifically stores such data. A storage medium (hardware) that has a function to perform such functions and a concept that includes data recorded as magnetic information on such a storage medium. A program or software that realizes such functions is installed in an executable format. The present invention is realized by an apparatus, a machine, a computer, or a computer peripheral device including a recording medium having the built-in recording medium.

  The preset condition input unit 205 related to the wave plate position time series calculation / database 20 has a function of inputting and specifying a representative point of each regular wave component of the wave making target according to the wavelength and the number of wave making machines. For example, a keyboard, a mouse, a voice input device, or a program or software that causes a computer to execute these functions, or a recording medium that incorporates these functions in an executable format is realized. . Specifically, representative points are plotted (plotted) so that an ideal wave can be formed as viewed from the entire water tank 2. The number of representative points is not limited, but it is more than the number of wave-making plates, and preferably two or more in one waveform.

  The wave spectrum data unit 206 related to the wave-making plate position time series calculation / database 20 designates the spectrum intensity for each wavelength and direction of the wave-making target, and various wave type data (for example, wavelength in the actual water surface field) And including the wave direction). The type data can be held in advance in a storage device (including a database). Thus, for example, the wave component (eg, wave wavelength, amplitude, wave height, wave direction, waveform, wave shape, wave velocity, period and phase of the Pacific Ocean, Atlantic Ocean, Japan Sea and all other oceans and sea areas) ) Is defined as the actual water surface field. Furthermore, the wave value generated with the spectral data of the wave measured by the arbitrarily set component value or the water surface field generated based on the component value is also included in the actual water surface field. In other words, it may be a component that does not exist in a predetermined ocean or sea area, or it may be a component value related to a unique wave, and by generating regular waves or irregular waves having each component, an irregular wave is further generated. obtain. The wave spectrum data unit 206 is a storage medium (hardware) having a function of storing such data and having a predetermined capacity, or a concept including data recorded as magnetic information on the storage medium. The present invention is realized by an apparatus, a machine, a computer, or a computer peripheral device including a recording medium in which a program or software that realizes a function is loaded in an executable format.

  The wavefront plate position time series calculation / preset wavefront calculation unit 207 related to the database 20 calculates the linear sum of the harmonic vibration field that best approximates the wavemaking target at the representative point specified by the preset condition input unit 205. And having a function of obtaining the amplitude and phase of the wave maker based on the speed potential data stored in the speed potential database 204-1 (including the limitation of the amplitude), an arithmetic unit (unit) having this function, This is realized by a central processing unit (unit), a program or software for causing a computer to execute such a function, or a recording medium in which these are mounted in an executable format.

  Wave-making plate position time-series calculation / wave-making plate position time-series database 208 related to database 20 is calculated for each component wave based on wave spectrum data 206 and the calculation result calculated by preset wavefront calculation unit 207. Refers to a database related to time-series data of wave-making plate positions obtained by combining the amplitude and phase of a wave-making machine. Specifically, a storage medium (hardware) having a function of storing such data and having a predetermined capacity Or an apparatus, machine, or the like that includes a concept that includes data recorded as magnetic information on such a storage medium, and that incorporates a recording medium in which a program or software that realizes such a function is mounted in an executable form. Realized by computer and computer peripherals.

  On the other hand, the operation indicator 300 related to the wave generator operation control unit 30 is a control part for actually driving the wave generator 10, and is a predetermined input device (for example, a drive start button, an operation screen, other Including an input part of information and instructions). The operation instruction device 300 may be realized by an apparatus, a machine, a computer, or a computer peripheral device that includes a recording medium in which a program or software that realizes such a function is loaded in an executable format.

  The wave mode setting device 301 related to the wave generator operation control unit 30 sets a state for driving the wave generator 10 to generate a wave, and is a predetermined input device (for example, a wave mode start button, Including an operation screen and other information and instruction input portions). The wave mode setting device 301 may be realized by an apparatus, a machine, a computer, or a computer peripheral device that includes a recording medium in which a program or software that realizes such a function is loaded in an executable format.

  The wave-making condition setting unit 302-1 according to the wave-making machine operation control unit 30 includes at least one of the wave wavelength, amplitude, wave height, wave direction, waveform, wave shape, wave velocity, period, and phase, or their It has a function of setting conditions for generating various waves depending on the combination, and includes predetermined input devices (for example, including condition setting buttons, operation screens, and other information and instruction input portions). It may be constituted by. The wave making condition setting unit 302-1 is realized by an apparatus, machine, computer, or computer peripheral device including a recording medium in which a program or software that realizes such a function is implemented in an executable format. Also good.

  The preset condition collating unit 303 according to the wave generator operation control unit 30 includes time series data of individual wave plate positions stored in the wave plate position time series database 208, and a wave condition setting unit 302-1. A function for collating whether or not the wave-making conditions set in (1) coincide with each other, an arithmetic device (unit) having this function, a central processing unit (unit), or a program for causing a computer to execute such a function It may be realized by software, or by incorporating a recording medium in which these are implemented in an executable format.

  The arithmetic processing unit 304 related to the wave generator operation control unit 30 includes velocity potential data stored in the velocity potential database 204-1 associated with the wave plate position time series calculation / database 20, the input wave spectrum data 206, and the wave generation. A function of calculating based on at least one of the wave-making plate position time-series data stored in the plate-position time-series database 208 and the wave-making conditions set by the wave-making condition setting unit 302-1; Realized by an arithmetic unit (part) having this function, a central processing unit (part), or a program or software that causes a computer to execute such a function, or a recording medium that incorporates these functions in an executable format May be.

  The time-series data storage device 305 according to the wave generator operation control unit 30 has a function of storing the calculation result in the calculation processing unit 304 and has a predetermined capacity, or magnetic information on the storage medium. This is a concept that includes data recorded as, and is realized by devices, machines, computers, and computer peripherals that contain a recording medium that incorporates a program or software that implements such functions in an executable format. The

  The condition / data transmission / reception unit 306 related to the wave generator operation control unit 30 includes velocity platen time series calculation / velocity potential data stored in the velocity potential database 204-1 of the database 20, the input wave spectrum data 206 and the wave generation data. Receiving at least one of the wave plate position time series data stored in the wave plate position time series database 208 and the wave making conditions set by the wave making condition setter 302-1 and the preset condition checking unit 303 has a function of transmitting the result of collation to the arithmetic processing unit 304, an arithmetic unit (unit) having this function, a central processing unit (unit), a communication device (unit), or a combination thereof, Alternatively, a program or software that causes a computer to execute such a function, or a recording medium that carries these functions in an executable format It may be implemented by those being built.

  The individual wave generator 10 includes the control device 101 (including the corrector 1010 and the reset unit 1011), the motor 106, and the wave plate 100. However, since it is as described above, a detailed description will be given. Omitted.

  Next, as a calculation performed by the calculation processing unit 304, an outline of calculation by the boundary element method of the velocity potential created by each wave making plate will be described.

  In a vortexless and incompressible flow, ΔΨ = 0 holds, but the variables are separated in the horizontal, vertical, and temporal directions.

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (1)
Assuming that the Helmholtz method in the horizontal direction

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (2)
Meet. K in this equation is the dispersion relation

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (3)
Is obtained by solving. According to Green's formula, the Hankel function of the first kind which is a Green function corresponding to this Helmholtz system

Using

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (4)
Get. This is discretized to obtain the following simultaneous equations relating to the value of F at the point x _i (i = 1, 2,..., N) (N is the total number of wave generators) at the center of the wave plate on the boundary. .

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (5)
In this formula

Corresponds to the speed of the jth wave plate. Now move only the mth wave plate at speed 1,

Solution for

Given that

As

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (6)
To summarize this in the form of a matrix AF = B for m = 1, 2,...

(7)

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (8)
Obtained by solving AF = B

From inside

The value at is obtained as follows.

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ (8)

  Next, the operation of the wave making device 1 having the above configuration will be described. FIG. 4 is a flowchart for explaining the operation of the wave making device 1 according to an embodiment of the present application.

  As shown in the figure, when a regular wave is generated, first, the size or shape of the water tank 1 and the position, width, and orientation of the wave forming plate 100 are designated, so that the water tank 2 constituting the wave making device 1 is formed. Information relating to the wave generator 10 is input (step S41). Then, the wave generation condition including the wavelength and frequency of the regular wave is specified by the calculation condition input unit 201-1 (step S 42).

  Next, based on the wave-making conditions thus specified, one wave-making plate is selected by the wave-making plate designating unit 202 and the velocity potential calculating unit 203, and when it is independently harmonized with the same period as the wave, The velocity potential field of the entire water tank 1 is calculated by the boundary element method, and the velocity potential created by one wave generator 10 is calculated (step S43). This is performed for all wave-making plates (step S43).

  On the other hand, in the preset condition input unit 205, a wave-making target is set according to the representative point of each wave component, that is, the wavelength and the wave direction, according to the wavelength of the wave-making wave and the number of wave-making machines M representative points "can be selected (step S44), and the value of the potential corresponding to the target wave field at the representative point is obtained.

And The representative point at this time is selected to be more than the number N of wave-making plates.

  Thereafter, the preset wavefront calculation unit 207 extracts the values at the M representative points of the harmonic vibration field obtained for each wavemaking plate by the wavemaking plate designating unit 202 and the velocity potential calculation unit 203, and extracts a complex sequence of M elements. A complex M × N matrix P is created by arranging the columns as many as the number of wave plates. This

N complex column vector

Is approximately solved (step S45). Since the amplitude of wave generators is limited, vector

Limit the size of each element so that it is less than the appropriate value.

  After that, the spectrum intensity is designated for each wavelength and direction of the wave-making target in the wave spectrum data 206 (step S46), and based on the wave spectrum data 206 and the calculation result calculated by the preset wavefront calculation unit 207, The time-series data of the wave-making plate position obtained by combining the amplitude and phase of the wave-making machine calculated for the component wave is stored in the wave-making plate position time-series database 208 (not shown). Conditions and data related to at least one of the velocity potential, wave spectrum data, and wave plate position time series data obtained by these processes, or a combination thereof, are the amplitude of the wave generator calculated for each component wave. The phases are summed (step S47) and sent to the condition / data transmission / reception unit 306 of the wave generator operation control unit 30 (not shown).

  On the other hand, an operation instruction and a wave mode are set by each unit of the wave generator operation control unit 30, and the wave-making condition set by the wave-making condition setting unit 302-1 and the collation result by the preset condition collation unit 303 are The data is transmitted to the data transmitter / receiver 306, and the time-series data of the wave making is calculated by the arithmetic processing unit 304 and stored in the time-series data storage device 305 (not shown). Therefore, in the individual wave generator 10, the control device 101 is controlled based on the time series data stored in the time series data storage device 305, the motor 106 is driven, and the wave making plate 100 behaves (not shown). .

  FIG. 5 shows, as a perspective view, an example of the wave generated in accordance with the above procedure, and represents the imaginary part of the velocity potential created by one wave generator. FIG. 6 is a perspective view of a wavefront as a wave-making target in the case of FIG. 7 is a perspective view showing the amplitude of the wave maker in the case of FIG. 5, and FIG. 8 is a perspective view showing the phase of the wave maker in the case of FIG.

  Next, another embodiment of the present application will be described.

  FIG. 9 shows the functions of the wave generator 10, the wave plate position time series calculation / database 20A, and the wave generator operation control unit 30A in the wave generator 1 that generates a concentrated wave according to another embodiment of the present invention. It is a functional block diagram which shows a structure. Since the basic configuration is the same as that of the wave making device 1 for making a regular wave or an irregular wave shown in FIG. 3, only the differences will be described, and the description of the parts equivalent to those in FIG. 3 will be omitted. .

  The calculation condition input unit 201-2 includes, for each time and position, the wavelength, amplitude, wave height, wave direction, waveform, wave shape, wave velocity, period and phase, and the maximum amplitude of the wave plate, Having a function of inputting and setting calculation conditions for generating various waves according to at least one of them, or a combination thereof, for example, a keyboard, a mouse, a voice input device, or a program or software for causing a computer to execute these functions Further, the present invention is realized by a built-in recording medium in which these are executed in an executable format.

  In the velocity potential time series database 204-2, the velocity potential calculation unit 203 calculates the velocity potential for each wave-making plate for each time and position, and specifies the time and position for the calculated data. A database that can be recalled and stored. Specifically, it means a storage medium (hardware) having a function of storing such data and having a predetermined capacity, or a concept including data recorded as magnetic information on such a storage medium, and a program for realizing such a function Alternatively, the present invention is realized by an apparatus, a machine, a computer, or a computer peripheral device including a built-in recording medium loaded with software in an executable format.

  Since the velocity potential time series data is calculated for each time and position, the element of the wave spectrum data 206 for forming the irregular wave is assumed to be included in the velocity potential time series data. The wave plate position time series database 208 for storing the series data becomes unnecessary.

  Further, the wave-making condition setting unit 301-2 also sets wave-making conditions for each time and for each position, like the calculation condition input unit 201-2. Therefore, there is no wave-making pattern such as a regular wave, so that the preset condition matching unit 303 is not necessary.

  With such a configuration, a concentrated wave is generated. FIG. 10 is a diagram conceptually showing a concrete example of a concentrated wave generated according to this embodiment of the present invention. FIG. 10A shows a concentrated wave formed by one paddle (wave generating plate). (B) shows how a concentrated wave is formed by half paddles, and (c) shows a concentrated point. FIG. 6 is a diagram illustrating how characters and patterns are formed in a certain time by the set of (upper face characters and lower characters). As shown in the figure, with the above configuration, in order to finely control the behavior of each wave-making plate for forming a desired concentrated wave, a concentrated wave (for example, a concentrated arc shape or a flower shape is included) by one paddle. ), Concentrated waves by half paddles (for example, including concentrated waves generated from three directions), patterns and characters (for example, humans and animals, character faces, kana characters, katakana characters, Special characters that cannot be represented by regular and irregular waves, such as Roman letters, Greek letters, Chinese characters, numerals, alphanumeric characters, Chinese numerals, and all other letters and character strings. The concentrated wave to express can be generated artificially.

  As explained in detail above, according to the present application, by controlling the wave-making plate installed on the intermediate shelf of the actual sea area reproduction tank based on a predetermined calculation, any of regular waves, irregular waves, and concentrated waves can be obtained. Can be generated.

Next, an embodiment of the wave making device according to the present application will be described.
1. Overview
(1) This device generates a wave in any other direction by controlling the wave-making plate installed on the intermediate shelf of the actual sea area reproduction tank.
(2) This wave-making device generates a regulated wave in the water tank using 382 wave-making plates, and is capable of both position control and absorption control methods. Consists of.
(3) The wave generator is composed of a flap-type wave plate and a driving device. It shall fix to the hardware embedded in the middle shelf part and upper shelf part of the water tank, respectively.
(4) The wave-making plate is driven by a ball screw drive system using an AC servo motor. The drive device has sufficient strength for smooth movement, and the gap between the side portions of the wave making plate is made as small as possible by a seal plate provided on the wave making plate. Note that the wave plate is supported by a bottom hinge and can be operated smoothly.
(5) Each wave plate is connected to an adjacent wave plate via a side hinge, and a plurality of wave plates are connected in a single band shape.
(6) The drive unit individually gives flap-type back-and-forth motion to the upper part of the wave-making plate.
(7) The control device controls the drive device, and includes a control panel and an operation panel.
(8) The control panel shall be installed in the control panel room on the east side of the tank.
2. Main performance
(1) Basic specifications
a) Quantity: 382 units
b) Wave making method: flap type snake type
c) Drive system: AC servo motor / ball screw drive
d) Generation wave type: regular wave, oblique regular wave, unidirectional irregular wave, oblique unidirectional irregular wave, multidirectional irregular wave, concentrated wave, arbitrary wave, composite wave, pure absorption mode, others Wave signal is calculated and stored, and is read while reading)
e) Wave-making cycle: 0.43sec-4.0sec
f) Maximum wave height: 0.35m
g) Absorption capacity: Target wave energy of 97% or more in the period of 0.8 to 2.53 sec.
h) Wave absorber: A wave absorber is attached to the wall behind the wave plate.
i) Wave-making plate equipment: Between short-side wave-making plates / 36 m or more
2. Long-wave direction corrugated plate / 76m or more Corners are arranged in a circular arc (R7.7m) Wave generator structure
(1) Wave plate
a) Quantity: 382 sheets
b) Dimensions: Width 55cm or less
c) Material: SUS304
(2) Drive unit
a) Quantity: 382 units
b) Structure: Steel plate shape welded structure
c) Drive motor: 1.0kW – 1500rpm, AC servo motor
d) Drive mechanism: Ball screw, timing belt, linear guide
e) Drive system: AC servo motor and ball screw drive
f) Material: SS400
g) Painting: Phthalic acid coating, etc.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. The technical idea of this application is to create a desired wave in a certain limited section without performing feedback control. This technical idea is only for model ship experiments that reproduce actual sea areas and actual water surface fields in shipbuilding. It can be used in various ways. For example, in the above description, it has been explained that the aquarium preferably has a huge volume, but for example, a wave experiment for civil engineering purposes to reproduce an actual sea area or actual water surface, By installing such a wave generator and artificially generating waves, you can enjoy playing, practice surfing, enjoy relaxation by waves, enjoy a bodily sensation game, and install at amusement facilities It can be easily realized. Furthermore, it can also be used for applications closely related to daily life of humans, such as increasing the freshness of fish by providing a wave-making device in a water tank for raising indoor viewing fish. Or, it is expected to be used in agriculture where the effects of wave-making can be used to grow seedlings. It can also be used for model ships, floating games, and amusements that reproduce the actual sea area and water surface by wave generation.

  Further, the above is merely an example of an embodiment for realizing the technical idea according to the present invention, and the technical idea according to the present invention can be applied to other embodiments. is there.

  Furthermore, even if the apparatus, method, and system produced using the present invention are listed and commercialized as a secondary product, the value of the present invention is not reduced at all.

  According to the present invention, in particular, wave-dissipation is regarded as a kind of wave-making, and a wave field including reflection when each wave-making machine vibrates is calculated with high accuracy, and then desired wave-field superposition is performed. It constitutes a wave field. The mechanism for generating waves by open-loop control is an epoch-making thing that reduces the burden of extra equipment, and brings great benefits not only to the marine industry but also to the activation of commercial facilities with water fields. Furthermore, as described above, it has the potential to be widely applied to civil engineering, agriculture, tourism, pet industry, game machine industry and the like.

1 is an overall schematic diagram illustrating a planar overview of a wave making device 1 according to an embodiment of the present invention. It is an apparatus block diagram of the wave maker 10 which concerns on one Embodiment of this invention. Functional configuration of wave generator 10, wave plate position time series calculation / database 20, and wave generator operation control unit 30 in wave generator 1 that generates a regular wave or an irregular wave according to an embodiment of the present invention. It is a functional block diagram which shows. It is a flowchart for demonstrating operation | movement of the wave making apparatus 1 which concerns on one Embodiment of this application. An example of the wave generation produced | generated according to the procedure which concerns on one Embodiment of this invention is shown as a perspective view, and represents the imaginary part of the velocity potential which one wave generator produces. It is a perspective view of the wave front made into the wave-making target in the case of FIG. It is a perspective view showing the amplitude of the wave maker in the case of FIG. It is a perspective view showing the phase of the wave maker in the case of FIG. Functional block showing the equipment configuration of the wave generator 10, the wave plate position time series calculation / database 20A, and the wave generator operation control unit 30A in the wave generator 1 for generating concentrated waves according to an embodiment of the present invention. FIG. It is a figure which shows notionally the specific example of the wave-shaped concentrated wave which concerns on this embodiment of this invention, (a) is that a concentrated wave is formed by one paddle, and a flower pattern (planar) is formed by six paddles. ) Is formed, (b) is a state where concentrated waves are formed by half paddles and concentrated waves from three directions are formed, and (c) is a character / pattern at a certain time due to a set of concentrated points. FIG. 4 is a diagram illustrating the state in which a character is formed (a face character on the top and a character on the bottom).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Wave generator, 2 ... Water tank, 10 ... Wave generator, 20 ... Wave plate position time series calculation database 30 ... Wave generator operation control part, 100 ... Wave generator, 101 ... Control apparatus, 102 ... Linear drive unit 106 ... Motor 204-1 Speed potential database 302-1 Wave-making condition setting unit 304 Operation processing unit 305 Time series data storage device

Claims (15)

  A plurality of wave-making plates arranged with respect to the wave-making water surface field, a plurality of driving means for respectively driving the plurality of wave-making plates, a wave-making condition setting means for setting wave-making conditions, and the wave-making water surface field A velocity potential database that pre-calculates the velocity potential of each of the plurality of wave-making plates in consideration of the influence of reflection and stores the calculation results for all of the plurality of wave-making plates; A calculation means for performing calculation according to a predetermined calculation formula based on the wave-making conditions set by the wave condition setting means and the data of the velocity potential database corresponding to the set wave-making conditions, and a calculation result of the calculation means. A wave generator comprising: a storage device that stores time-series data of individual wave-making plate positions; and a control unit that controls the plurality of drive units based on the time-series data of the storage device. Location.   An application result obtained by holding the spectrum data of the waves measured in the actual water surface field and applying the spectrum data to the calculation result according to the predetermined calculation formula based on the setting of the wave-making condition setting means 2. The wave making device according to claim 1, wherein the control means controls the plurality of driving means based on the above.   In calculating the velocity potential, the direction of the wave, one of the wave wavelength or period, and the maximum amplitude of the wave plate are specified, and the reflection of the individual wave plate when the harmonic wave is oscillated in the same cycle as the wave. The wave making device according to claim 1 or 2, wherein the velocity potential of the entire wave making water surface field considering the influence is calculated based on a boundary element method.   The calculation of the calculation means is performed by approximating a harmonic wave field corresponding to the wave-making condition and a complex linear sum with restrictions on absolute values of data of the velocity potential database corresponding to the wave-making condition. 4. A wave making apparatus according to claim 3, wherein simultaneous equations relating to amplitude and phase of the plate are solved.   A wave-making plate position time-series database for storing calculation results for predetermined wave-making conditions as time-series data of the positions of the individual wave-making plates; and the wave-making conditions set by the wave-making condition setting means are The control means controls the plurality of driving means by using time series data in the wave making plate position time series database when substantially matching with the predetermined wave making conditions. 5. The wave making device according to one of items 4 to 4.   A plurality of wave-making plates arranged with respect to the wave-making water surface field, a plurality of drive means for respectively driving the wave-making plates, and a wave-making condition setting means for setting wave-making conditions for each time and for each position In addition, the velocity potential at each position of each of the plurality of wave-making plates in consideration of the influence of reflection in the wave-making water surface field is calculated in advance and calculated for all the plurality of wave-making plates. Based on the velocity potential time-series database for storing the results as time-series data, the wave-making conditions set by the wave-making condition setting means, and the data of the velocity potential time-series database corresponding to the set wave-making conditions A calculation unit that performs calculation according to a predetermined calculation formula, and a storage device that stores time-series data of individual wave-making plate positions that are calculation results of the calculation unit corresponding to the setting in the wave-making condition setting unit; Wave-making device being characterized in that a control means for controlling the plurality of drive means based on the time-series data of the storage device.   The control means controls the driving means by correcting time series data of the storage device and / or adding correction conditions based on driving characteristics obtained in advance of the plurality of driving means. Item 7. A wave making device according to item 1 of items 1 to 6.   8. The structure according to claim 1, wherein the control unit includes a reset unit and resets the plurality of driving units when starting the driving of the plurality of driving units. Wave equipment.   Pre-calculating a velocity potential in consideration of the influence of reflection in the wave-making surface field produced by individual wave-making plates of a plurality of wave-making plates arranged with respect to the wave-making surface field; A step of storing results calculated for a plurality of wave-making plates in a database as data, a step of setting wave-making conditions, a step of calling up corresponding data from the database according to the set wave-making conditions, and the wave-making conditions And a step of performing calculation based on a predetermined calculation formula according to the called data, a step of storing time series data of individual wave-making plate positions as a result of the calculation, and a plurality of the plurality of times based on the time series data And a step of driving and controlling the wave making plate.   The step of performing the calculation and / or the step of controlling the driving is performed according to the predetermined calculation formula based on the spectrum data of the waves measured in an actual water surface field and the setting of the step of setting the wave-making conditions. 10. The wave making method according to claim 9, wherein the plurality of wave making plates are controlled based on an application result obtained by applying the spectrum data to a calculation result.   In calculating the velocity potential, the direction of the wave, one of the wavelength or period of the wave and the maximum amplitude of the wave making plate are specified, and the wave making plate is oscillated at the same period as the wave. 11. The wave making method according to claim 9, wherein the velocity potential considering the influence of reflection of the entire wave surface is calculated based on the boundary element method. The step of performing the calculation is performed by approximating a harmonic wave field corresponding to the wave-making condition and a complex linear sum with restrictions on absolute values of the data of the database corresponding to the wave-making condition. 12. The wave making method according to claim 11, wherein simultaneous equations relating to amplitude and phase are solved.   Precalculating velocity potential for each time and position in consideration of the influence of reflection in the wave-making water surface field produced by the individual wave-making plates of a plurality of wave-making plates arranged with respect to the wave-making water surface field, and all The step of storing the result of calculating the velocity potential for each time and position for each of the plurality of wave making plates in the database as time series data, the step of setting the wave making conditions for each time and position, and the setting A step of performing an operation according to a predetermined arithmetic expression based on the wave-making conditions and the time-series data of the database corresponding to the set wave-making conditions, and at the time of each wave-making plate position as a calculation result of the calculation means A wave making method comprising: storing sequence data; and driving and controlling the plurality of wave forming plates based on the time series data. Inputting a wave-making condition set by the wave-making condition setting means on the computer;
According to the input wave-making conditions, the velocity potential produced by each wave-making plate of the plurality of wave-making plates considering the influence of reflection in the wave-making water surface field is calculated in advance, and the results are obtained for all the plurality of wave-making plates. Calling the corresponding data from the stored velocity potential database;
Performing a calculation according to a predetermined calculation formula based on the input wave-making conditions and the called data;
Storing the calculation results as time-series data of individual wave-making plates;
And a step of outputting as a driving condition of a driving means for driving the plurality of wave-making plates based on the time series data. Computer
A step of inputting wave-making conditions for each time and position set by the wave-making condition setting means;
For each time and position taking into consideration the influence of reflection in the wave-making surface field produced by individual wave-making plates of a plurality of wave-making plates arranged with respect to the wave-making water surface field corresponding to the inputted wave-making conditions Calling the velocity potential from the velocity potential time-series database stored in advance for all the plurality of wave plates;
Performing a calculation according to a predetermined calculation formula based on the wave generation condition set by the wave generation condition setting means and the time-series data of the called speed potential;
Storing time series data of calculation results of the step of performing the calculation;
Calling the time series data of the calculation results;
And a step of outputting as a driving condition of a driving means for driving the plurality of wave-making plates according to the time-series data of the called calculation results.