Tuned mass damper structure with continuously variable frequency

A technology for tuning mass damping and frequency, applied in building components, anti-vibration and other directions, can solve the problems of unadjustable resonant frequency, non-continuous and precise adjustment, and difficulty in adapting to the needs of different vibration frequencies, so as to improve the effect of resonance.

Inactive Publication Date: 2015-12-09
WUHAN SITANDI DAMPING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the defect that the resonant frequency of existing tuned mass damper products cannot be adjusted or cannot be continuously and accurately adjusted, and it is difficult to adapt to the needs of different vibration frequencies, the present invention provides a tuned mass damper device with continuously adjustable resonant frequen

Method used

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  • Tuned mass damper structure with continuously variable frequency
  • Tuned mass damper structure with continuously variable frequency
  • Tuned mass damper structure with continuously variable frequency

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Embodiment 1

[0029] refer to figure 1 , figure 2, a tuned mass damper with continuously variable frequency, including a main mass 11, a guide mechanism 12, a constant stiffness elastic support 13, a damping unit 15 and a base 16, and the main mass 11 and the base 16 together constitute a main support structure , the guide mechanism 12, the constant stiffness elastic support 13, and the damping unit 15 are respectively installed on the main support structure, and the damping unit 15 and the guide mechanism 12 are respectively installed between the main mass block 11 and the base 16, and the former absorbs vibration The role of energy, the latter plays a role in limiting the direction of movement of the main mass 11. In addition, it also includes an adjustable stiffness elastic support 14 located between the main mass 11 and the base 16, and the adjustable stiffness elastic support 14 includes an elastic beam 141, a slider 142 and a fastener, wherein the The right end of the elastic beam ...

Embodiment 2

[0046] refer to image 3 , Figure 4, a tuned mass damper with continuously variable frequency, including a main mass 21, a guide mechanism 22, a constant stiffness elastic support 23, a damping unit 25 and a base 26, and the main mass 21 and the base 26 together constitute a main support structure , the guide mechanism 22, the elastic support with constant stiffness 23, and the damping unit 25 are respectively installed on the main support structure, and the damping unit 25 and the guide mechanism 22 are respectively installed between the main mass block 21 and the base 26, and the former absorbs vibration The role of energy, the latter plays a role in limiting the direction of motion of the main mass 21. In addition, it also includes an adjustable stiffness elastic support 24 between the main mass block 21 and the base 26, and the adjustable stiffness elastic support 24 includes an elastic beam 241, a slider 242 and a fastener, wherein the The right end of the elastic beam...

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Abstract

The invention discloses a tuned mass damper structure with continuously variable frequency. The tuned mass damper structure comprises a main mass block, a guide mechanism, a constant-stiffness elastic support, a damping unit and a base, wherein the main mass block and the base together constitute a main support structure; the tuned mass damper structure further comprises a stiffness-adjustable elastic support positioned between the main mass block and the base; the stiffness-adjustable elastic support comprises an elastic beam, a sliding part and a fastening piece; the right end of the elastic beam is fixedly mounted on the base; the sliding part is mounted on the main support structure in a position-adjustable manner and can slide in the longitudinal direction of the elastic beam; the fastening piece is used for fixing the sliding part on the main support structure after the sliding part slides to a set position. The tuned mass damper structure has the advantages that stepless adjustment of the support stiffness can be realized in a larger range, tuned mass damper products with the same models can meet vibration damping requirements of base structures of different vibration frequency and also can be used for reducing vibration of base structures with time variable vibration frequency.

Description

technical field [0001] The invention belongs to the technical field of vibration isolation, and more specifically relates to a damping unit. Background technique [0002] Tuned mass damper is a passive vibration damping device that has been widely used in recent years. Due to its simple structure, no need for external energy input, and good stability, it is widely used in micro-vibration control of civil engineering structures and mechanical equipment. Vibration reduction and other fields. [0003] The tuned mass damper consists of three parts: mass block, spring and damping system. By adjusting the natural frequency of the tuned mass damper to the frequency of the controlled structure to change the resonance characteristics of the controlled structure, the vibration energy on the controlled structure is transferred to the tuned mass damper, and then transferred through the damping unit The energy dissipated to achieve the purpose of reducing the vibration of the controlle...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 姜伟叶仙谢金哲孙亮明何卫宋冲
Owner WUHAN SITANDI DAMPING TECH CO LTD
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