Positive and negative rigidity parallel connection shock absorber

A positive and negative stiffness, shock absorber technology, applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems of low stiffness and large static offset

Active Publication Date: 2013-08-21
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional low stiffness spring shock absorber has a large static deflection for a certain load due to its low stiffness

Method used

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  • Positive and negative rigidity parallel connection shock absorber
  • Positive and negative rigidity parallel connection shock absorber
  • Positive and negative rigidity parallel connection shock absorber

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Embodiment Construction

[0019] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0020] figure 1 It is a structural schematic diagram of the first embodiment of the positive and negative stiffness parallel shock absorber provided by the present invention. figure 2 It is a three-dimensional cross-sectional schematic view of the first embodiment of the present invention.

[0021] Such as figure 1 and figure 2 As shown, the positive and negative stiffness parallel shock absorber provided by the first embodiment of the present invention includes a ...

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Abstract

The invention discloses a positive and negative rigidity parallel connection shock absorber and belongs to the field of precise shock reduction. The positive and negative rigidity parallel connection shock absorber comprises a positive rigidity air spring and a negative rigidity magnetic spring. The positive rigidity air spring and the negative rigidity magnetic spring are arranged in parallel. The negative rigidity magnetic spring is installed in an air spring chamber. The positive rigidity air spring is a circular cavity or a rectangular cavity and used for bearing. The negative rigidity magnetic spring is composed of an internal magnet, an external magnet, an inner magnetic seat and an outer magnetic seat and used for reducing dynamic rigidity of the shock absorber. The internal magnet and the external magnet are arranged in a repelling mode. The positive and negative rigidity parallel connection shock absorber has the advantages of being high in static rigidity and high in dynamic rigidity, so that the shock absorber is large in bearing force and small in static deformation and meanwhile, shock in ultralow frequency is effectively isolated.

Description

technical field [0001] The invention belongs to the field of precision damping, in particular to a positive and negative stiffness parallel shock absorber. The positive and negative rigidity parallel shock absorber involved in the present invention is compact in structure and has the characteristics of high static rigidity and low dynamic rigidity. Background technique [0002] As the vibration requirements of ultra-precision machining and measuring equipment become more and more stringent, it becomes more and more important to improve the performance of the shock absorber. Introducing active vibration control and reducing the stiffness of the shock absorber are two effective ways to improve the vibration damping performance. [0003] Active vibration control can effectively attenuate the vibration in the frequency band near the natural frequency of the system, but it has no effect on the attenuation of high-frequency vibration. Reducing the stiffness of the shock absorber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/00
Inventor 陈学东吴文江徐振高单玉虎
Owner HUAZHONG UNIV OF SCI & TECH
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