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Vertical tuned mass ball screw type inerter eddy current damper

An eddy current damper and ball screw technology, which is applied in the field of structural vibration reduction, can solve the problem of unsolved magnetic leakage of the eddy current damper, and achieves the effects of easy modular assembly, smooth movement and wide application.

Active Publication Date: 2020-12-25
湖南省潇振工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the device does not solve the magnetic flux leakage problem of the eddy current damper

Method used

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  • Vertical tuned mass ball screw type inerter eddy current damper
  • Vertical tuned mass ball screw type inerter eddy current damper

Examples

Experimental program
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Embodiment Construction

[0041] This embodiment discloses a vertically tuned mass ball screw type inertial eddy current damper, such as figure 1 and figure 2 As shown, the support frame 12 divides the outer frame 8 into two layers; The top and bottom surfaces of the lower layer are affixed. The mass block 3 is slidably sleeved on the guide rod 7; the free end of the spring 6 is fixedly connected to the mass block 3, and the fixed end of the spring 6 is connected to the support frame 12 or the outer frame 8 fixed connection. The iron plate 4 is attached to the inner wall surface of the upper or lower layer where the mass block 3 is located; the conductor plate 2 is attached to the surface of the iron plate 4; the permanent magnet 1 is arranged on the mass The vertical side of the block 3, and there is a set gap between the permanent magnet 1 and the conductor plate 2. The ball screw 5 is vertically arranged, and the fixed end is affixed to the geometric center of the mass block 3, and the mass blo...

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Abstract

The invention provides a vertical tuned mass ball screw type inerter eddy current damper. The vertical tuned mass ball screw type inerter eddy current damper comprises an outer frame, a vertically-arranged guide rod, a support frame, a mass block, a spring, a permanent magnet, a conductor plate and an iron plate, and a set gap is reserved between the permanent magnet and the conductor plate; and the damper further comprises a vertically-arranged ball screw, a nut, a flywheel and a thrust bearing. When vibration energy of the controlled structure is transmitted to the damper, the mass block iscaused to vibrate up and down, the flywheel is driven to rotate at a high speed through the ball screw, the conductor plate cuts magnetic induction lines of the permanent magnet, and the eddy currentdamping effect is formed; and the back iron can reduce magnetic flux leakage and improve the damping energy consumption efficiency. According to the vertical tuned mass ball screw type inerter eddy current damper, a gap between the permanent magnet and the conductor plate remains unchanged in the moving process of the mass block, so that the distance between the permanent magnet and the conductorplate can be set to be very small, and very large damping force can be generated; the mass block does linear motion, the damping force has no torque on the mass block, the pressure between the mass block and the guide rod is not increased, and the motion is smooth.

Description

technical field [0001] The invention belongs to the technical field of structural vibration reduction, and in particular relates to a vertically tuned mass ball screw type inertial current eddy current damper. Background technique [0002] Tuned mass dampers are widely used in the field of vibration reduction of bridges, high-rise buildings and other engineering structures. It has been proved by theory and practice that tuned mass dampers have a good effect on the control of structural vibration, but the traditional vertical tuned mass damper There are two problems in the device, one is the durability problem, and the other is the spring static elongation problem. Facing the needs of rapid social development, it is necessary to solve the above-mentioned problems of the tuned mass damper and to optimize and improve it. [0003] The eddy current damping technology has the characteristics of non-contact and good controllability, and can solve the durability problem. It has bee...

Claims

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Application Information

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IPC IPC(8): F16F6/00F16F15/30F16F15/28F16F15/10E04B1/98E04H9/02
CPCE04H9/02F16F6/00F16F15/10F16F15/28F16F15/30F16F2222/06
Inventor 封周权陈政清陈智刘易华旭刚牛华伟
Owner 湖南省潇振工程科技有限公司
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