JP5369618B2 - Damping method and apparatus for tower-like structure with moving object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent deterioration in a vibration control effect even if a cabin is ascended and descended. <P>SOLUTION: A passive-type dynamic vibration absorber 11 is equipped with a vibration control system which comprises a movable pit 12, a spring element 13 with an adjustable spring constant for adjusting its natural vibration frequency and a damper element 14. The vibration absorber is provided at a specified section of a tower-like structure 1 with a lifting/lowering type cabin 3 provided at the tower-like structure body 2. When a height position h of the cabin 3 is changed in the tower-like structure 1, the natural vibration frequency of the tower-like structure 1 is obtained based on information on the height position h of the cabin 3 by a control unit 16 which has a data base accumulating the relationship between the change in the height position h of the cabin 3 and the change in the natural vibration frequency of the tower-like structure 1 by numerical calculation or actual measurement in advance. Then, the spring constant of the spring element 13 in the passive type dynamic vibration absorber 11 is adjusted so that the natural vibration frequency of the movable pit 12 is always synchronized with the required natural vibration frequency of the tower-like structure 1. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a method and an apparatus for damping a tower-like structure provided with an ascending / descending moving object that is movable in the vertical direction along a tower-like structure body such as an elevator cabin.

  In general, a tower-like structure is a flexible structure with small attenuation, so that it tends to be swayed by an external wind force. When such a tower-like structure is swayed, the cabin of the tower-like structure (residence area) ) The people inside may get drunk. Moreover, when the height of the structure is increased, the vibration due to the wind load is more problematic than the earthquake load. For this reason, in the tower-like structure, it is an important technical problem to reduce the wind fluctuation of the cabin.

  Conventionally, as a measure for reducing the shaking generated in a high-profile structure such as the above tower-like structure, a movable mass movable in the horizontal direction is provided on the upper part of the structure to be controlled. It has been proposed to install a mass damper type dynamic vibration absorber.

  A passive type dynamic vibration absorber known as one of the mass damper type dynamic vibration absorbers includes a movable mass (vibration damper) provided in a required position of a structure to be damped in a horizontal direction, A spring element for adjusting the natural frequency of the movable mass and a kinetic energy of the movable mass are attenuated between a fixed portion on the structure to be controlled provided on one end side in the moving direction of the movable mass. The vibration system is configured by interposing a damper element, and the natural frequency of the movable mass in the vibration system is set to be synchronized with the natural frequency of the structure to be controlled.

  According to the passive type dynamic vibration absorber having such a configuration, when a vibration occurs in the structure, the vibration energy is transmitted to the movable mass, and the movable mass is delayed by 90 degrees with respect to the vibration of the structure to be controlled. At this time, as a result of the kinetic energy of the movable mass being attenuated by the damper element, the vibration of the structure to be controlled is suppressed.

  Note that, as described above, the passive type dynamic vibration absorber has the natural frequency of the movable mass to be the natural frequency of the structure to be damped in order to give an optimum vibration damping effect to the structure to be damped. Therefore, when applying the passive dynamic vibration absorber to a structure to be damped having a different natural frequency, the movable mass for each structure to be damped having a different natural frequency is used. It is necessary to appropriately set and adjust spring elements having different spring constants as spring elements for adjusting the natural frequency.

  However, as described above, it is very troublesome to set and adjust spring elements having different spring constants for each structure to be controlled with different natural frequencies. By adjusting the initial tension of the spring element for adjusting the natural frequency of the movable mass (damping body) in the dynamic vibration absorber according to the natural frequency of the structure to be damped, the movable mass Conventionally, it has been proposed to adjust and set the natural frequency (see, for example, Patent Document 1).

  As another method for adjusting and setting the natural frequency of the movable mass in the passive type dynamic vibration absorber, for example, a weight (weight) that becomes a movable mass is attached to the pendulum lever. In the pendulum type dynamic vibration absorber having the structure described above, the mounting position of the weight along the longitudinal direction of the lever of the pendulum is changed, and the distance from the fulcrum (swing center) of the pendulum to the center of gravity of the pendulum is changed. Thus, conventionally, a method has been conceived in which the natural frequency of a pendulum to which a weight as a movable mass is attached can be adjusted and set (for example, see Non-Patent Document 1).

  By the way, one tower-like structure such as an observation tower is provided with a lift cabin of a type that allows the cabin to move up and down along the tower-like structure body from near the ground to the top. There is a structure.

JP 2003-336683 A Kondo Kiyoshi, Ota Toru, Sato Hirokazu, “Suppression of Hull Superstructure by Dynamic Vibration Absorber with Adjustable Natural Frequency”, The Shipbuilding Society of Japan, 1987, No. 162, p375-382

  However, the passive type dynamic vibration absorber produces a good damping effect by synchronizing the natural frequency of the movable mass with the natural frequency of the structure to be controlled. When the vibration characteristics of the structure to be controlled with the vibration absorber greatly fluctuate over time, it is necessary to readjust the natural frequency of the movable mass of the dynamic vibration absorber according to the vibration characteristics after the fluctuation.

  For example, when a bridge main tower is constructed, the natural frequency of the main tower changes depending on the height of the main tower, so the passive dynamic vibration absorber provided in the bridge main tower In the middle of the construction process of the main tower, the actual situation is that the work of adjusting and setting the natural frequency of the movable mass is performed several times.

  However, in the tower-like structure provided with the above-described liftable cabin, the cabin moves up and down in a short time along the tower-like structure body, so that the natural frequency of the tower-like structure itself fluctuates in a short time. Therefore, in the method of adjusting and setting the natural frequency of the movable mass in the conventional passive type dynamic vibration absorber as described in Patent Document 1 and Non-Patent Document 1, the vertical direction of the elevating cabin is described above. It is difficult to readjust and set the natural frequency of the tower-like structure each time in response to fluctuations in the natural frequency of the tower-like structure in a short time accompanying movement.

  In addition, since the concentrated mass called the cabin moves in the tower-like structure, the fluctuation of the natural frequency becomes large. Therefore, even if the natural frequency of the movable mass in the passive type dynamic vibration absorber provided in the tower-like structure provided with the above-described lifting type cabin is expressed as the characteristic frequency of the tower-like structure when the cabin is at a certain height position. Even if it is set so as to synchronize with the frequency, there is a problem that the vibration damping performance of the dynamic vibration absorber is greatly deteriorated as the cabin moves in the vertical direction.

  Therefore, the present invention provides a tower-like structure having a concentrated mass lifting / lowering object that moves in the vertical direction along the tower-like structure main body such as the above-mentioned lifting / lowering cabin, and An object of the present invention is to provide a method and an apparatus for damping a tower-like structure provided with an ascending / descending-moving object that can avoid deterioration of the damping effect on the tower-like structure even when moved.

In order to solve the above-mentioned problems, the present invention corresponds to claim 1, and the height of the ascending / descending moving object in the tower-like structure provided with the ascending / descending movable object along the tower-like structure main body. The relationship between the change in position and the change in the natural frequency of the tower-like structure is obtained in advance by numerical calculation or actual measurement and stored as a database, and when the moving object moves up and down, the height of the moving object moves up and down. seeking the natural frequency of the tower-like structure from said database based on the information of the position is, adjust the natural frequency of the tower-like structure equipped with pendulous or inclined pendulum of a passive dynamic vibration absorber to by the unique frequency of the animal vibration absorber, the vibration damping method tower-like structure having a vertical moving product so as to always tuned to the natural frequency of the tower-like structure obtained from the database To do.

Further, in response to claim 2, the tower-like structure having a vertically movable elevator moving object along the tower-like structure body, from the fulcrum of the pendulum arm with a variable dynamic mass to the movable mass A pendulum type or tilt pendulum comprising a damper element that can adjust the natural frequency of the pendulum by changing the length or tilt angle of the pendulum by an actuator and that attenuates the kinetic energy of the movable mass In addition, the relationship between the change in the height position of the moving object in the tower-like structure and the change in the natural frequency of the tower-like structure is calculated in advance by numerical calculation or actual measurement. comprising a database storing seeking and seeking the natural frequency of the vertical movement thereof with the tower-like structure from said database based on the information of the height position of the vertical movement thereof when lifting, the vibration To the actuator in the telescopic or inclined pendulum of a passive dynamic vibration absorber, the natural vibration of the pendulum or the tower-like structure of the natural frequency determined from the database of the inclined pendulum of a passive dynamic vibration absorber a vibration damping device of the tower-like structure having a vertical movement having a configuration with a controller to provide a directive to tune to the number.

Further, specific in the above structure, the vertical movement thereof provided vertically movably along the tower-like structure body, and elevating the cabin, the controller to change a tower-like structure of the height position of the cabin The relationship between the changes in the frequency is obtained in advance by numerical calculation or actual measurement and accumulated as a database, and when the cabin is moved in the vertical direction, the tower-like structure is obtained from the database based on the information on the height position of the cabin. seeking number specific vibration, the actuator in the pendulum or inclined pendulum of a passive dynamic vibration absorber, the natural frequency of the passive dynamic vibration absorber of the pendulum or inclined pendulum is obtained from the database described above It is set as the structure provided with the raising / lowering moving body of Claim 2 which has the function to give a command so that it may synchronize with the natural frequency of a tower-like structure.

According to the present invention, the following excellent effects are exhibited.
(1) The relationship between the change in the height position of the moving object and the change in the natural frequency of the tower-like structure in the tower-like structure provided with the moving object that can be moved up and down along the tower-like structure body Is obtained in advance by numerical calculation or actual measurement and stored as a database. When the moving object moves up and down, the tower-like structure is identified from the database based on the height position information of the moving object. seeking frequency, by adjusting the natural frequency of the equipped with pendulous or inclined pendulum of a passive dynamic vibration reducer in the tower-like structure, the unique frequency of the animal absorber, said database damping method of vertical movement thereof tower-like structure with which to be constantly tuned to the natural frequency of more determined tower-like structure, and the tower-like structure is as the arrangement comprises a variable dynamic mass From the fulcrum of the arm of the pendulum to the movable mass Of Yes and the length or the inclination angle to be able to adjust the natural frequency of the pendulum be varied by an actuator, and a pendulum or inclined pendulum comprises a damper element for damping the kinetic energy of the movable masses In addition, the relationship between the change in the height position of the moving object in the tower-like structure and the change in the natural frequency of the tower-like structure is calculated in advance by numerical calculation or actual measurement. comprising a database storing seeking and seeking the natural frequency of the vertical movement thereof with the tower-like structure from said database based on the information of the height position of the vertical movement thereof when lifting, the pendulum or the inclined pendulum passive the actuator in dynamic vibration absorber of the natural frequency of the passive dynamic vibration absorber of the pendulum or inclined pendulum above Since the vibration damping device of the tower-like structure having obtained a controller providing a directive to tune the natural frequency of the tower-like structure from database, the elevator moving object is a at any height position However, when a vibration is generated in the tower-like structure, the vibration energy is transmitted to the movable mass whose natural frequency is adjusted so as to be synchronized with the natural frequency of the tower-like structure in the passive dynamic vibration absorber. As a result, the movable mass oscillates at a phase that is delayed by 90 degrees with respect to the oscillation of the tower-like structure and at a synchronized frequency, so that the kinetic energy of the movable mass is attenuated by the damper element. Thus, the shaking of the tower structure can be suppressed.
(2) Therefore, even if the vertically moving object is moved to any position in the vertical direction along the tower-shaped structure body, deterioration of the damping effect in the passive dynamic vibration absorber is prevented in advance. And a good vibration damping effect of the tower-like structure can be obtained.
(3) a tower-like structure vertically movably provided are lifting movement thereof along the body, and elevating the cabin, the controller of the natural frequency of the change and the tower-like structure of the height position of the cabin The relationship of change is obtained in advance by numerical calculation or actual measurement and stored as a database, and the natural vibration of the tower structure is determined from the database based on the information on the height position of the cabin when the cabin is moved in the vertical direction. seeking several pendulous or actuators in the inclined pendulum of a passive dynamic absorber, the pendulous or natural frequency of the passive dynamic vibration absorber of the inclined pendulum is obtained from the database the tower-like structure By adopting a structure having a function of giving a command to synchronize with the natural frequency of the object, the tower structure having the above-described elevator cabin is Even if the cabin is at any height, the entire tower-like structure can be damped, so that the swaying of the elevating cabin can be suppressed and the comfort in the cabin can be improved. become.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  1 and 2 show an embodiment of a vibration damping method and apparatus for a tower-like structure provided with an ascending / descending moving object according to the present invention, which has the following configuration.

  Here, first, an outline of the tower-like structure 1 including an ascending / descending moving object to which the present invention is applied will be described. The tower-like structure 1 is, for example, the outer periphery of a tower-like structure body 2 extending in the vertical direction. An annular cabin 3 as an up-and-down moving object is disposed on the guide rail 4 provided in the required position on the outer peripheral surface of the tower-like structure main body 2 so as to extend vertically from the vicinity of the ground to the top. The guide blocks 5 provided at the upper and lower ends of the circumferentially required portion in the inner peripheral portion of the annular cabin 3 are slidably attached.

  Furthermore, as the raising / lowering drive mechanism 6 of the cabin 3, for example, one end portion is connected to each guide block 5 attached to the upper end portion of the inner peripheral portion of the cabin 3, and the other end portion is connected to the inside of the structure body 2. A wire rope 8 connected to a counterweight 7 arranged so as to be able to move up and down is provided on the top of the tower-like structure body 2 and is wound around a drive pulley 10 that can be driven forward and backward by a drive motor 9. By providing the elevating drive mechanism 6 having the drive pulley 9, the drive pulley 10 is driven forward and backward by the drive motor 9, thereby bringing the cabin 3 along the outer surface of the tower-like structure body 2 through the wire rope 8. Can be moved up and down.

  In order to apply the vibration damping method and apparatus for a tower-like structure provided with an ascending / descending moving object according to the present invention to the tower-like structure 1 provided with the lifting / lowering cabin 3 having the above-described configuration, a required portion of the cabin 3 is applied. For example, on the upper side of the cabin 3, the movable mass 12 having a required mass, the spring element 13 capable of adjusting the spring constant for adjusting the natural frequency of the movable mass 12, and the kinetic energy of the movable mass are attenuated. A passive type dynamic vibration absorber 11 having a vibration system including a damper element 14 is installed.

  Further, in order to detect the height position of the cabin 3, for example, based on a signal input from a rotational speed detection device 15 such as an encoder attached to a drive motor 9 in the elevating drive mechanism 6, the passive type The dynamic vibration absorber 11 includes a controller 16 that gives a command to the spring constant adjusting mechanism of the spring element 13.

  More specifically, as shown in FIG. 2, the passive type dynamic vibration absorber 11 has an upper end portion of a pendulum arm 18 serving as a spring element 13 on a bracket 17a provided on a support frame 17 fixed to the cabin 3. However, it is attached so as to be swingable along one axis direction.

  A linear guide 19 extending along the longitudinal direction of the arm 18 is attached to the lower end of the arm 18, and the movable mass 12 having the required mass is attached to the guide block 20 of the linear guide 19.

  Further, as a spring constant adjusting mechanism, a ball screw mechanism 21 including a servo motor 22, a screw shaft 23 that is rotationally driven by the servo motor 22, and a nut member 24 attached to the screw shaft 23 is used as the arm. 18 is provided in parallel to the linear guide 19 at the lower end portion, and the nut member 24 is attached to the movable mass 12. Thus, the screw shaft 23 is driven forward and backward by the servo motor 22 so that the movable mass 12 can be moved along the longitudinal direction of the arm 18 integrally with the nut member 24. is there. Therefore, when the screw shaft 23 is rotationally driven in one direction by the servo motor 22 of the ball screw mechanism 21 and the movable mass 12 is moved upward along the longitudinal direction of the arm 18 together with the nut member 24, The distance from the position of the upper end of the arm 18 serving as a fulcrum of the pendulum as the spring element 13 to the position of the center of gravity of the pendulum can be shortened, and the spring constant of the pendulum as the spring element 13 is changed so as to increase. Thus, the natural frequency of the pendulum can be increased. On the other hand, when the screw shaft 23 is rotationally driven in the other direction by the servo motor 22 of the ball screw mechanism 21 and the movable mass 12 is moved downward along the longitudinal direction of the arm 18 together with the nut member 24, The distance from the fulcrum of the pendulum as the spring element 13 to the position of the center of gravity of the pendulum can be increased, and the spring constant of the pendulum as the spring element 13 is changed so as to be small, thereby reducing the natural frequency of the pendulum. It can be made smaller.

  Further, the damper element 14 is interposed between a required portion of the arm 18, for example, a lower end portion of the arm 18 and a fixing portion 25 fixed to the cabin 3.

  Although not shown in the drawing, a plurality of the pendulum passive dynamic vibration absorbers 11 are arranged in the cabin 3 so that the pendulum swinging directions are along each of the two biaxial directions orthogonal to each other in a plane. As a configuration provided, the tower-like structure 1 can be swayed in all directions by combining the vibration suppression effects of the passive dynamic vibration absorbers 11 arranged along the two axial directions. It is assumed that it can cope.

  The controller 16 moves the wire 3 through the rotation of the driving pulley 10 by the operation of the driving motor 9 of the elevating drive mechanism 6 from the state where the cabin 3 is disposed at the lowest position in the elevating movement range as shown by the solid line in FIG. Based on the rotational speed of the drive motor 9 detected by the rotational speed detection device 15 attached to the drive motor 9 when the cabin 3 is lifted together with the rope 8 as shown by a two-dot chain line in FIG. The height position h of the cabin 3 can be obtained.

Further, the controller 16 previously measures or numerically calculates the relationship between the height position h of the cabin 3 and the natural frequency fn of the tower-like structure 1 that changes according to the height position of the cabin 3. The result obtained by the above is prepared as a database, for example, a database expressed as a function having the height position h of the cabin 3 as a variable as in the following expression (1),
fn = g (h) (1)
When the height position h of the cabin 3 is obtained based on the number of rotations of the drive motor 9 at a certain time, the tower-like structure 1 at that time is based on the database represented by the above formula (1). Of the ball screw mechanism 21 which is a spring constant adjusting mechanism in the pendulum type passive dynamic absorber 11 based on the determined natural frequency fn of the tower-like structure 1. An operation command is given to the servo motor 22, and the natural frequency of the pendulum passive dynamic absorber 11 is changed to the tower-like structure through the movement of the movable mass 12 in the longitudinal direction of the arm 18 by the operation of the servo motor 22. The structure is provided with a function for tuning to the natural frequency fn of the object.

  When shaking occurs in the tower-like structure 1 equipped with the vibration control device for the tower-like structure having the moving object according to the present invention having the above-described configuration, the shaking energy is converted into the pendulum type passive dynamic vibration absorption. Is transmitted to the movable mass 12 attached to the arm 18 of the pendulum in the vessel 11, and the movable mass 12 oscillates with the arm 18 at a phase delayed by 90 degrees with respect to the oscillation of the tower-like structure 1. At this time, the kinetic energy of the movable mass 12 swaying with the arm 18 is attenuated by the damper element 14 provided between the arm 18 and the fixed portion 25, so that the tower-like structure 1 is swayed. It will be suppressed.

  Further, when the cabin 3 is moved up and down along the tower-like structure body 2 in the tower-like structure 1, the height position h of the concentrated mass of the cabin 3 changes. Even if the natural frequency fn of the tower-like structure 1 itself changes greatly, following the change in the natural frequency fn of the tower-like structure 1 caused by the change in the cabin height position h. Then, the controller 16 gives an operation command to the servo motor 22 of the ball screw mechanism 21 in the pendulum type passive dynamic vibration absorber 11 so that the longitudinal position of the arm 18 of the pendulum of the movable mass 12 is continuously set. Therefore, the natural frequency of the pendulum of the dynamic vibration absorber 11 is always tuned to the natural frequency fn of the tower-like structure 1. In the tower-like structure 1 equipped with , Even in a state where the cabin 3 is moved to any position in the vertical direction, it is possible to obtain a good damping effect by the dynamic vibration absorber 11 of the passive type.

  Therefore, it is possible to avoid the deterioration of the damping effect on the tower structure 1 by the passive dynamic vibration absorber 11.

  Next, FIG. 3 shows another embodiment of the present invention. In the same configuration as in FIGS. 1 and 2, the passive type dynamic vibration absorber 11 is vertically moved along the tower-like structure body 2. In place of the structure provided on the upper side of the cabin 3 that is movable to the upper part of the tower-like structure body 2, for example, on the upper side of the support frame 26 provided on the upper end of the tower-like structure body 2, The same configuration as that shown in FIG. 2 is provided with a pendulum passive passive vibration absorber 11.

  Although not shown, also in the present embodiment, the pendulum passive type dynamic vibration absorber 11 is disposed on the upper side of the support frame 26 provided at the upper end of the tower-like structure body 2 in a plane. As a configuration in which a plurality of pendulum swing directions are arranged along each of the two biaxial directions orthogonal to each other, the vibration damping effect of the passive dynamic vibration absorber 11 arranged in the biaxial direction is obtained. By combining, it is assumed that the tower-like structure 1 can cope with shaking in all directions.

  Other configurations are the same as those shown in FIGS. 1 and 2, and the same components are denoted by the same reference numerals.

  Also in the present embodiment, the tower shape follows the natural frequency fn of the tower structure 1 accompanying the change in the height position h of the cabin 3 that moves in the vertical direction along the tower structure body 2. The natural frequency of the pendulum in the pendulum passive dynamic vibration absorber 11 provided on the support frame 26 at the upper end of the structure body 2 is always synchronized with the natural frequency fn of the tower-like structure 1. Therefore, the same effect as the above embodiment can be obtained.

  The present invention is not limited to the above-described embodiment. If the height position h of the cabin 3 that moves in the vertical direction can be detected, the height position h of the cabin 3 can be detected. In addition to detecting the number of rotations of the drive motor 9 in the raising / lowering drive mechanism of the cabin 3, the means measures the number of rotations of the drive pulley 10, measures the vertical movement distance of the cabin 3, etc. Any means may be adopted.

  Although the pendulum passive dynamic vibration absorber 11 shown in FIG. 2 is shown as having the damper element 14 interposed between the lower end portion of the arm 18 and the fixed portion 25, You may make it provide the damper element 14 between the middle position of a longitudinal direction, and the fixing | fixed part of the side.

  The passive dynamic vibration absorber 11 can freely change the spring constant of the spring element 13 for adjusting the natural frequency of the movable mass 12 by a required actuator that operates according to a command from the controller 16. If possible, for example, the inclination of the tilt pendulum arm to which the required mass of the movable mass is attached is changed by the required actuator so that the natural frequency of the tilt pendulum can be adjusted. Any type of passive type dynamic vibration absorber other than the pendulum type, such as a pendulum type dynamic vibration absorber, may be employed.

  The passive dynamic vibration absorber 11 may be built in the cabin 3 or built in the upper part of the tower-like structure body 2 as long as a space can be secured in the cabin 3 or the tower-like structure body 2. .

  The vibration damping method and apparatus for a tower-like structure provided with an ascending / descending moving object according to the present invention is a tower-like structure 1 provided with a lifting / lowering cabin 3 and if it is a tower-like structure 1 that desires damping, The shape of the cabin 3, the shape of the tower-like structure body 2, the raising / lowering drive system of the cabin 3, etc. may be applied to the tower-like structure 1 provided with any type of the raising / lowering cabin 3 different from that shown in the figure. Furthermore, as a form in which a vertically moving object with a concentrated mass is provided so as to be movable in the vertical direction along the tower-like structure body 2, the natural frequency changes as the vertically moving object moves in the vertical direction. Of course, it can be applied to a tower-like structure provided with a moving object other than an elevating cabin, and various modifications can be made without departing from the gist of the present invention.

It is a schematic diagram showing one embodiment of a vibration damping method and apparatus for a tower-like structure provided with an ascending / descending moving object according to the present invention. It is a side view which expands and shows the concrete structure of the passive type dynamic vibration damper provided in the required part of a tower-like structure as a part of apparatus of FIG. It is a schematic diagram which shows the other form of implementation of this invention.

Explanation of symbols

1 tower-like structure 2 tower-like structure body 3 cabin (moving object)
DESCRIPTION OF SYMBOLS 11 Passive type dynamic vibration absorber 12 Movable mass 13 Spring element 14 Damper element 16 Controller

Claims (3)

The relationship between the change in the height position of the moving object and the change in the natural frequency of the tower-like structure in a tower-like structure equipped with a moving object that can be moved up and down along the tower-shaped structure body is expressed numerically. Calculated or measured in advance and stored as a database. When the moving object moves up and down, the natural frequency of the tower structure is calculated from the database based on the information on the height position of the moving object. seeking, by adjusting the natural frequency of the equipped with pendulous or inclined pendulum of a passive dynamic vibration reducer in the tower-like structure, the unique frequency of the animal absorber was determined from the database A method for damping a tower-like structure provided with an ascending / descending-moving object, characterized by being always synchronized with the natural frequency of the tower-like structure. The tower-like structure having a vertically movable elevator moving object along the tower-like structure body, change the actuator length or inclination angle of up to movable mass from the fulcrum of the arm of the pendulum having a variable dynamic mass A pendulum type or a pendulum type passive type dynamic vibration absorber provided with a damper element for damping the kinetic energy of the movable mass and capable of adjusting the natural frequency of the pendulum. Furthermore, a database in which the relationship between the change in the height position of the moving object in the tower-like structure and the natural frequency of the tower-like structure is obtained and accumulated in advance by numerical calculation or actual measurement is provided, and based on the information of the height position of the vertical movement thereof in search of the natural frequency of the tower-like structure from said database when elevating the elevating movement thereof, the pendulum or inclined pendulum To the actuator in Sshibu type of the dynamic vibration reducer, the finger to tune the natural frequency of the pendulum or the tower-like structure of the natural frequency determined from the database of the inclined pendulum of a passive dynamic vibration absorber A vibration control device for a tower-like structure provided with an ascending / descending moving object, characterized in that it has a configuration including a controller for giving a command. The tower-like structure vertically movably provided are lifting movement thereof along the body, and elevating the cabin, the controller of the relationship of the natural frequency of the change of the change and the tower-like structure of the height position of the cabin Is obtained in advance by numerical calculation or actual measurement and stored as a database, and when the cabin is moved in the vertical direction, the natural frequency of the tower structure is obtained from the database based on the information on the height position of the cabin. Te, inherent to the actuator in pendulum or inclined pendulum of a passive dynamic absorber, the pendulum or the tower-like structure natural frequency is obtained from said database inclined pendulum of a passive dynamic vibration absorber The vibration damping device for a tower-like structure provided with an ascending / descending moving object according to claim 2, which has a function of giving a command to synchronize with the frequency.

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