JP2017125737A - Vibration testing device, and vibration testing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve improvement in accuracy of a vibration test of structures.SOLUTION: A vibration testing device 1 comprises: a vibration stage 2 that includes a table 6, drive means 7, and a control device 8; and an excitation device 3 that is provided on the vibration stage. In the vibration stage 2, a drive command a is given to the drive means 7 in accordance with a vibration waveform of a base of a structure from the control device 8, and a vibration of the base is simulated by means of the table 6. The excitation device 3 comprises: a movement table 12; an actuator 13; and a control device 14. In the movement table 12, loaded is a test body 4 of a part on an upper side further than a part near to a lower side of the structure and to be subjected to numerical modelling. The control device 14 is configured to give the actuator 13 a command for reproducing behaviors occurring in the uppermost section of the part numerically modeled by the vibration of the base. By the vibration stage 2, the vibration of the base of the structure is reproduced, and the behavior of the numerically modeled part of the structure is reproduced by the excitation device 3, which in turn a vibration behavior of a corresponding part of the structure is simulated in the test body 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vibration test apparatus and a vibration test method for performing a vibration test of a structure.

  As one of the devices for vibration testing of structures, a part of the structure is made into a real model (test body) using a real thing or a model, and the remaining part of the structure is numerically modeled. Conventionally, a vibration test apparatus having a configuration including an actuator disposed at a boundary between the actuator and a control device for the actuator has been proposed.

  In this vibration test apparatus, the response of the numerical model is obtained when an external force whose vibration response should be evaluated is applied to the entire structure, and the result of the response and the combined force of the external force are applied from the actuator to the actual model. It is done.

  As a result, the vibration test apparatus simulates (reproduces) the vibration behavior of the real model when the external force acts through the numerically modeled portion of the structure (see, for example, Patent Document 1). .

JP-A-5-332876

  However, what is disclosed in Patent Document 1 is a calculation that synthesizes an external force whose vibration response is to be evaluated for an entire structure such as a seismic wave and a response of a numerically modeled portion of the structure with respect to the external force. Thus, the force (vibration) generated at the boundary between the real model and the numerical model is obtained, and the force is applied from the actuator to the real model.

  Therefore, the output of the actuator includes both an error that occurs when the external force is taken into the calculation using the numerical model and an error that occurs when the response of the numerical model is calculated. Moreover, it is difficult to separate and evaluate how each error affects the result.

  For this reason, it is considered difficult to improve the accuracy of the vibration test in the one disclosed in Patent Document 1.

  Therefore, the present invention provides a vibration test apparatus and a vibration test method capable of improving the accuracy of a vibration test of a structure performed using a test piece of the structure portion and a numerical model of the other portion of the structure. Is to provide.

  In order to solve the above-mentioned problem, the present invention provides a vibration test in which a vibration test is performed using a partial test body of a structure to be subjected to a vibration test and a numerical model for a part other than the test body. The apparatus includes a vibration table including a table, a driving unit that reciprocates the table, and a control device, and a vibration device installed on the vibration table. The vibration device mounts the test body. And a control device for controlling the actuator. The control device for the vibration table drives the vibration waveform related to the vibration of the foundation of the structure. The control device of the vibration exciter re-behaves the behavior of the boundary between the numerically modeled portion of the structure and the portion to be tested. A command to, and the vibration testing apparatus having a function to be applied to the actuator.

  The control device of the vibration exciter is configured such that a portion from the foundation of the structure to a set height position is defined as the numerically modeled portion of the structure, and the test is performed above the numerically modeled portion. It is configured to issue a command to reproduce the behavior of the boundary with the body part.

  In a vibration test method for performing a vibration test using a partial test body of a structure to be subjected to a vibration test and a numerical model for a part other than the test body, the table is driven to reciprocate the table. The table of the vibration table provided with the means and the control device is reciprocated with a vibration waveform related to the vibration of the foundation of the structure to be subjected to the vibration test, and the moving table of the vibration device installed on the table of the vibration table is A vibration test method in which a test body is placed and the moving table of the vibration exciter is operated so as to reproduce the behavior of the boundary between the numerically modeled portion of the structure and the portion of the structure. And

  The movement table of the vibration exciter is a boundary behavior between the numerically modeled part of the structure and the part that is the test body, at the boundary obtained by numerical analysis using the numerical model. This is a method of operating so as to reproduce the response of load and displacement.

  According to the vibration test apparatus and the vibration test method of the present invention, it is possible to improve the accuracy of the vibration test of the structure.

It is a schematic diagram showing a 1st embodiment of a vibration test device. It is a figure which shows the outline | summary of the structure used as the object of the vibration test using the vibration test apparatus of 1st Embodiment. It is a figure which shows an example of the characteristic of the load and the displacement of the part by which the numerical model of the structure was related regarding the vibration test apparatus of 1st Embodiment. It is a schematic diagram which shows 2nd Embodiment of a vibration test apparatus. It is a figure which shows the outline | summary of the structure used as the object of the vibration test using the vibration test apparatus of 2nd Embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a schematic diagram showing a first embodiment of a vibration test apparatus. FIG. 2 is a diagram showing an outline of a structure to be subjected to a vibration test using the vibration test apparatus of the present embodiment. FIG. 3 is a diagram illustrating an example of the load and displacement characteristics of the numerically modeled portion of the structure according to the present embodiment.

  The vibration test apparatus according to the present embodiment is denoted by reference numeral 1 in FIG. 1 and includes a vibration table 2 and a vibration device 3 for a test body 4 installed on the vibration table 2.

  The vibration table 2 is an apparatus for simulating the vibration of the foundation B on which the structure A is installed when the object of the vibration test is, for example, the structure A having an overall structure as shown in FIG. It is.

  For this reason, as shown in FIG. 1, the vibration table 2 reciprocates the table 6 disposed in a uniaxial direction with respect to the base 5 and the table 6 arranged so as to be reciprocally movable in the uniaxial direction (left and right direction in FIG. 1). The drive unit 7 and the control device 8 for the vibration table 2 that gives a drive command a to the drive unit 7 are provided. Further, the vibration table 2 is preferably provided with a sensor 9 that detects a response b to the drive command a.

  In FIG. 1, for convenience of illustration, the configuration of the vibration table 2 is shown in a simplified manner. However, the vibration table 2 has a configuration in which the table 6 can be reciprocally driven in one axial direction by the driving means 7. For example, the guide means for guiding the movement of the table 6 and the drive means 7 may be the same as the guide means or drive means for any known shaking table.

  The control device 8 has a function of setting a vibration waveform such as an earthquake waveform related to the vibration of the foundation B (see FIG. 2) before the vibration test, and along the time axis of the set vibration waveform when the vibration test is performed. A function of sequentially outputting the changing amplitude value to the driving means 7 as a drive command a is provided. In addition, as the vibration of the foundation B for which a vibration test is desired for the structure A (see FIG. 2), an earthquake is mainly considered, but it is a vibration (ground motion) caused by a factor other than an earthquake such as a constant tremor. Also good. Therefore, the vibration waveform set in the control device 8 may of course be a vibration waveform other than the earthquake waveform.

  Thus, in the vibration table 2, when the vibration test is performed, the table 6 is reciprocated by the driving means 7, and the waveform of the reciprocation of the table 6 at that time follows the vibration waveform set in the control device 8. It is assumed.

  For example, when the drive command a is a command related to the amplitude (displacement) of the table 6, a sensor 9 that detects a response b related to the actual amplitude (displacement) of the table 6 is used. In FIG. 1, the sensor 9 has a configuration attached to the driving unit 7 for convenience of illustration. However, if the actual amplitude (displacement) of the table 6 can be detected, its detection method (sensing method). Is not particularly limited. For example, the sensor 9 may be of a form that detects the position of the table 6 based on the amount of movement of the driving means 7, or a form that measures the position of the table 6 like a linear scale, and measures the acceleration and speed of the table 6. In addition, a format in which the position of the table 6 is detected by an operation (integral calculation or the like) based on the measurement result may be employed, or any other detection format may be employed.

  The sensor 9 has a function of outputting the detection result of the response b regarding the actual amplitude (displacement) of the table 6 to the control device 8.

  It is preferable that the control device 8 has a function of performing feedback control so that an error between the drive command a and the response b is reduced when the detection result of the response b is input from the sensor 9. If it does in this way, it will be controlled by feedback control by control device 8 so that the actual amplitude of table 6 may correspond well with drive command a.

  The vibration device 3 includes a linear guide 10 disposed on the table 6 of the vibration table 2 along the reciprocating direction of the table 6, and a movable table slidably attached to the linear guide 10 via the guide block 11. 12, an actuator 13 that reciprocates the moving table 12 along the linear guide 10, a control device 14 for the vibration device 3 that gives a drive command c to the actuator 13, and a sensor that detects a response d to the drive command c 15. Further, a signal processing device 16 is connected to the control device 14.

  Here, the test body 4 will be described.

  With respect to the structure A having the entire structure as shown in FIG. 2 to be subjected to the vibration test, in the present embodiment, in the structure A, a portion from a location in contact with the foundation B to a preset height position h. A numerical model is set for A1 (indicated by hatching in FIG. 2). On the other hand, in the structure A, the other part A2 excluding the part A1 in which the numerical model is set, that is, the part A2 above the height position h that is the upper end of the numerically modeled part A1. The actual object or model (model having an entity) is manufactured and used as the test body 4.

  When the vibration test is performed, the test body 4 is placed and held on the moving table 12 as shown in FIG.

  The actuator 13 reciprocates the moving table 12, and becomes the uppermost part of the numerically modeled part A1 (see FIG. 2) of the structure A, that is, the boundary between the part A1 and the part A2 (see FIG. 2). This is to reproduce the behavior of the location.

  By the way, when the structure A shown in FIG. 2 has a vertically long configuration, the amplitude increases toward the upper side of the structure A when the structure A is vibrated due to the vibration of the foundation B. When the belly is formed by the phenomenon of the structure A or the vibration mode of the structure A, a phenomenon in which the amplitude increases at the belly part is assumed. Therefore, the vibration amplitude of the uppermost portion of the numerically modeled portion A1 may be larger than the vibration amplitude of the foundation B.

  Therefore, it is preferable to use a linear motor as the actuator 13. This is advantageous in reducing the size and weight of the drive system according to the linear motor, and the drive speed can be increased regardless of the stroke size. This is because a wide range of test conditions with various amplitudes can be accommodated.

  Needless to say, any type of actuator 13 other than the linear motor can be used as long as the movable table 12 can be reciprocated in the direction along the linear guide 10.

  For example, when the drive command c is a command related to the amplitude (displacement) of the moving table 12, a sensor 15 that detects a response d related to the actual amplitude (displacement) of the moving table 12 is used. In FIG. 1, the sensor 15 has a configuration attached to the actuator 13 for convenience of illustration. However, if the actual amplitude (displacement) of the moving table 12 can be detected, its detection method (sensing method). Is not particularly limited. For example, the sensor 15 may be of a form that detects the position of the moving table 12 based on the amount of movement of the actuator 13 or a form that actually measures the position of the moving table 12 such as a linear scale. The position of the moving table 12 may be detected by an operation (integral calculation or the like) based on the measurement result, or any other detection format may be employed.

  The sensor 15 has a function of outputting the detection result of the response d regarding the actual amplitude (displacement) of the moving table 12 to the control device 14 and the signal processing device 16.

  The control device 14 has a function of outputting to the actuator 13 a drive command c for reproducing the behavior of the uppermost part of the numerically modeled portion A1.

  Therefore, before the vibration test, a numerical analysis using the numerical model of the portion A1 shown in FIG. 2 is performed using an external computer or the like, and the portion A1 numerically modeled due to the vibration of the foundation B The characteristics related to the response of load and displacement generated at the top of the plate are required. The obtained characteristics are, for example, as shown in FIG. 3, and the obtained characteristics are registered (set) in advance in the control device 14.

  The signal processing device 16 is for assisting the function of the control device 14 so that the actuator 13 can reproduce the target load and displacement characteristics of the numerical model.

  Therefore, the signal processing device 16 determines the characteristics of the actual displacement and the load based on the response d of the actual displacement of the moving table 12 input from the sensor 15 and the load applied to the moving table 12 by the actuator 13. The controller 14 has a function of calculating a load generated by the actuator 13 that is required to match the characteristics shown in FIG.

  For example, when reproducing the load-displacement relationship with the characteristics shown in FIG. 3, in the region where the displacement is small from the starting point Pa (region Pa to Pb in FIG. 3), the generated load increment is increased, and then the displacement is In a region where the load is large (regions Pb to Pc in FIG. 3), it is required to reduce the increment of the generated load.

  As shown in FIG. 1, the signal processing device 16 gives a vibration command e to the control device 14 for the vibration device 3 based on the calculation result of the load generated by the actuator 13. The control device 14 gives a drive command c to the actuator 13 based on the vibration command e input from the signal processing device 16. Thereby, the operation of the actuator 13 is controlled, and the operation of the moving table 12 driven by the actuator 13 is generated at the top of the numerically modeled portion A1 (see FIG. 2) due to the vibration of the foundation B. The behavior is reproduced.

  The control device 14 preferably has a function of performing feedback control so that an error between the drive command c and the response d is reduced when the detection result of the response d is input from the sensor 15. If it does in this way, it will be controlled by feedback control by control device 14 so that the real amplitude of movement table 12 may correspond well with drive command c.

  When the vibration test apparatus 1 of the present embodiment performs a vibration test according to the above control contents, the waveform of the reciprocating motion of the table 6 in the vibration table 2 is the earthquake waveform of the foundation B of the structure A set in the control apparatus 8. The movement of the moving table 12 in the vibration exciter 3 is a reproduction of the behavior of the uppermost part of the numerically modeled portion A1. Therefore, the vibration behavior of the test body 4 placed on the moving table 12 simulates the vibration behavior of the portion A2 above the portion A1 in the structure A installed on the foundation B.

  Therefore, in the vibration test using the vibration test apparatus 1 of the present embodiment, the vibration behavior of the test body 4 is measured by a sensor (not shown) and analyzed, so that the structure A has a portion A2 corresponding to the test body 4. Vibration behavior can be analyzed.

  At this time, in the vibration test apparatus 1 of the present embodiment, the calculation for reproducing the vibration of the foundation B by the vibration table 2 and the behavior of the uppermost part of the numerically modeled part A1 are reproduced by the moving table 12. Since calculations can be performed separately, individual calculations are facilitated, and therefore errors included in each calculation can be detected separately.

  Moreover, in general, the vibration of the foundation B such as earthquake motion is often handled in the relative coordinate system, while the vibration of the structure A is often handled in the absolute coordinate system, but the vibration test apparatus 1 of the present embodiment. Then, it is possible to control the control device 8 of the vibration table 2 and the control device 14 of the vibration device 3 while maintaining separate coordinate systems. For this reason, the vibration test apparatus 1 according to the present embodiment reduces errors compared to a vibration test in which a calculation for synthesizing the vibration of the foundation B and the vibration behavior of the numerically modeled portion A1 of the structure A is performed. Can be achieved.

  Therefore, according to the vibration test apparatus 1 of the present embodiment, the vibration test of the structure A performed using the numerical model of the part A1 of the structure A and the test body 4 of the part A2 of the structure A is accurate. Improvement can be achieved.

  Furthermore, according to the present embodiment, the vibration (ground motion) of the foundation B reproduced by the shaking table 2, the behavior of the uppermost portion of the numerically modeled portion A1 in the structure A, and the portion corresponding to the test body 4 With respect to the vibration behavior occurring in A2, it is also possible to obtain information on relative movement of each other at a time by visual observation.

  In FIG. 1, the signal processing device 16 is shown as a separate unit from the control device 14 for the vibration device 3, but the control function of the signal processing device 16 is incorporated in the control device 14. It may be. In this case, the output of the vibration command e based on the calculation result and the generation of the drive command c based on the vibration command e may be performed as internal processing of the control device 14.

[Second Embodiment]
FIG. 4 is a schematic diagram showing a second embodiment of the vibration test apparatus. FIG. 5 is a diagram showing an outline of a structure to be subjected to a vibration test using the vibration test apparatus of the present embodiment.

  4 and 5, the same components as those shown in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The vibration test apparatus according to the present embodiment is denoted by reference numeral 1a in FIG. 4. In the same configuration as that of the first embodiment illustrated in FIG. 1, one vibration apparatus 3 is provided above the vibration table 2. Instead of the configuration, a plurality of vibration devices 3 a and 3 b are stacked on the upper side of the vibration table 2. FIG. 4 shows a configuration in which two vibration devices 3a and 3b are stacked.

  The vibration devices 3a and 3b are respectively the same linear guides 10a and 10b, guide blocks 11a and 11b, movement tables 12a and 12b, actuators 13a and 13b, and control devices 14a and 14b as the vibration device 3 in the first embodiment. And it is set as the structure provided with sensor 15a, 15b.

  The vibration device 3b is attached to the upper side of the moving table 12a of the vibration device 3a. In the present embodiment, the test body 4a is placed and held on the moving table 12b of the vibration exciter 3b arranged at the uppermost stage.

  Further, a signal processing device 16a is connected to the control device 14a, and a signal processing device 16b is connected to the control device 14b.

  Here, the test body 4a used in the present embodiment will be described.

  With respect to the structure C having the entire structure as shown in FIG. 5 to be subjected to the vibration test, in the present embodiment, a portion C1 from the portion in contact with the base B to the height position h1 set in advance in the structure C. (Shown with hatched hatching in FIG. 5) and a portion C2 from the height position h1 to the height position h2 (shown with dot hatching in FIG. 5), respectively. The numerical model is set. On the other hand, in the structure C, the remaining part C3 excluding the two parts C1 and C2 in which each numerical model is set, that is, above the height position h2 that is the upper end of the numerically modeled part C2, As for the portion C3, a real or model (a model having an entity) is manufactured and used as the test body 4a.

  The control device 14a of the first stage vibration device 3a from the bottom has a function of outputting a drive command c for reproducing the behavior of the uppermost portion of the numerically modeled portion C1 to the actuator 13a.

  Therefore, a numerical analysis using the numerical model of the portion C1 shown in FIG. 5 is performed using an external computer or the like before the vibration test, and the portion C1 numerically modeled due to the vibration of the foundation B The characteristics related to the response of load and displacement generated at the top of the plate are required. The obtained characteristics are registered (set) in advance in the control device 14a.

  The signal processing device 16a is for assisting the function of the control device 14a so that the actuator 13a can reproduce the target load and displacement characteristics of the numerical model.

  Therefore, the signal processing device 16a determines the characteristics of the actual displacement and the load based on the response d of the actual displacement of the moving table 12a input from the sensor 15a and the load applied to the moving table 12a from the actuator 13a. The controller 14a has a function of calculating a load generated by the actuator 13a that is required to match the characteristics set in advance in the controller 14a.

  As shown in FIG. 4, the signal processing device 16a gives a vibration command e to the control device 14a for the vibration device 3a based on the calculation result of the load generated by the actuator 13a. The control device 14a gives a drive command c to the actuator 13a based on the vibration command e input from the signal processing device 16a. Thereby, the operation of the actuator 13a is controlled, and the operation of the moving table 12a driven by this actuator 13a reproduces the behavior of the uppermost part of the numerically modeled portion C1 (see FIG. 5).

  Further, the control device 14b of the second stage vibration device 3b from the bottom has a function of outputting a drive command c for reproducing the behavior of the uppermost part of the numerically modeled portion C2 to the actuator 13b. ing.

  Therefore, before the vibration test, a numerical analysis using the numerical model of the portion C2 shown in FIG. 5 is performed using an external computer or the like, and numerical values are attributed to the movement of the moving table 12a of the vibration exciter 3a. Characteristics relating to the response of the load and displacement generated at the top of the modeled portion C2 are obtained. The obtained characteristics are registered (set) in advance in the control device 14b.

  The signal processing device 16b is for assisting the function of the control device 14b so that the actuator 13b can reproduce the target load and displacement characteristics of the numerical model.

  Therefore, the signal processing device 16b determines the characteristics of the actual displacement and the load based on the response d of the actual displacement of the moving table 12b input from the sensor 15b and the load applied to the moving table 12b from the actuator 13b. The controller 14b has a function of calculating a load generated by the actuator 13b that is necessary to match the characteristics set in advance.

  As shown in FIG. 4, the signal processing device 16b gives a vibration command e to the control device 14b for the vibration device 3b based on the calculation result of the load generated by the actuator 13b. The control device 14b gives a drive command c to the actuator 13b based on the vibration command e input from the signal processing device 16b. Thereby, the operation of the actuator 13b is controlled, and the operation of the moving table 12b driven by the actuator 13b reproduces the behavior of the uppermost portion of the numerically modeled portion C2 (see FIG. 5).

  In the vibration test apparatus 1a of the present embodiment, the waveform of the reciprocating motion of the table 6 in the vibration table 2 is the vibration waveform such as the earthquake waveform of the foundation B of the structure A set in the control apparatus 8 according to the above control content. It will be reproduced. Furthermore, the operation of the movement table 12a in the vibration device 3a reproduces the behavior of the uppermost part of the numerically modeled portion C1, and the operation of the movement table 12b in the vibration device 3b is a numerically modeled portion. It reproduces the behavior of the top of C2. Therefore, the vibration behavior of the test body 4a placed on the moving table 12b simulates the vibration behavior of the portion C3 above the portion C2 of the structure C installed on the foundation B.

  Therefore, the vibration test apparatus 1a of this embodiment analyzes the vibration behavior of the portion C3 corresponding to the test body 4a for the structure C by measuring and analyzing the vibration behavior of the test body 4a with a sensor (not shown). be able to.

  Therefore, the same effect as that of the first embodiment can be obtained by this embodiment.

  Further, according to the present embodiment, the vibration (ground motion) of the foundation B reproduced by the shaking table 2 and the behavior of the uppermost portion of the lower layer portion C1 that is numerically modeled in the structure C are numerically modeled. With respect to the behavior of the uppermost portion of the middle layer portion C2 and the vibration behavior generated in the portion C3 corresponding to the test body 4a, information on relative movement of each other can be obtained at a time by visual observation.

  As in the first embodiment, the calculation function of the signal processing device 16a may be incorporated into the control device 14a, and the calculation function of the signal processing device 16b may be incorporated into the control device 14b. It is.

  Further, the present invention is not limited to the above embodiments, and the control device 8 of the shaking table 2 preferably performs feedback control based on the response b regarding the actual amplitude of the table 6, Feedback control is not essential.

  The control devices 14, 14a, 14b of the vibration exciters 3, 3a, 3b preferably perform feedback control based on the response d related to the actual amplitude of the moving tables 12, 12a, 12b, but the feedback control is essential. is not.

  Although the control device 8 of the shaking table 2 has been described on the assumption that a vibration waveform such as seismic motion is set with respect to amplitude (displacement), the vibration waveform may be related to speed or acceleration. In this case, the control of the table 6 may be performed based on each speed or acceleration.

  The characteristic diagram relating to the response of the load and displacement generated at the top of the numerically modeled portion A1 shown in FIG. 3 is an example, and an arbitrary curve can be used depending on the structure and size of the numerically modeled portion. It may be set. In addition to the displacement, characteristics relating to speed and frequency may be set.

  In 2nd Embodiment, it is good also as a structure which laminated | stacked the vibration apparatus 3a, 3b in multiple steps | paragraphs of 3 steps or more. In this case, with respect to the structure C shown in FIG. 5, the vibration test of the structure C can be performed under the condition that the numerically modeled portion is set from the lower side with the same number of stages as the vibration device.

  Of course, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1,1a Vibration test apparatus, 2 Shaking table, 3,3a, 3b Excitation apparatus, 4 Test body, 6 Table, 7 Driving means, 8 Control apparatus, 12, 12a, 12b Moving table, 13, 13a, 13b Actuator, 14, 14a, 14b Control device, A structure, A1 part, A2 part, B foundation, C structure, C1 part, C2 part, C3 part

Claims (4)

In a vibration test apparatus for performing a vibration test using a partial test body of a structure to be subjected to a vibration test and a numerical model for a part other than the test body,
A shaking table comprising a table, a driving means for reciprocating the table, and a control device;
A vibration device installed on the shaking table,
The vibration device includes a moving table for placing the test body, an actuator for reciprocating the moving table, and a control device for controlling the actuator.
The control device of the shaking table has a function of outputting a vibration waveform relating to the vibration of the foundation of the structure as a drive command to the drive means,
The control device of the vibration device has a function of giving a command to the actuator to reproduce a behavior of a boundary between the numerically modeled portion of the structure and the portion to be the specimen. Vibration test equipment. The control device of the vibration exciter is configured such that a portion from the foundation of the structure to a set height position is defined as the numerically modeled portion of the structure, and the test is performed above the numerically modeled portion. The vibration test apparatus according to claim 1, wherein a command for reproducing the behavior of the boundary between the body part and the body is issued. In a vibration test method for performing a vibration test using a partial test body of a structure to be subjected to a vibration test and a numerical model for a part other than the test body,
Reciprocating a table of a vibration table provided with a table, a driving means for reciprocating the table and a control device, with a vibration waveform related to vibration of a foundation of a structure to be vibration tested;
Place the test body on the moving table of the vibration device installed on the table of the shaking table,
A vibration test method, wherein the moving table of the vibration exciter is operated so as to reproduce a behavior of a boundary between the numerically modeled portion of the structure and the portion to be the test body. The movement table of the vibration exciter is a boundary behavior between the numerically modeled part of the structure and the part that is the test body, at the boundary obtained by numerical analysis using the numerical model. The vibration test method according to claim 3, wherein the vibration test method is operated so as to reproduce a response of a load and a displacement.

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