Active control SMA metal rubber shock absorber and vibration isolation performance adjusting method

A metal rubber, active control technology, applied in the functional characteristics of spring/shock absorber, shock absorber, spring/shock absorber, etc., can solve the problem that the structure of the vibration isolator is simple, cannot be applied to various working conditions, natural frequency and Fixed stiffness and other issues

Active Publication Date: 2020-01-24
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing vibration isolator has a simple structure, and its natural frequency and stiffness are fixed and cannot be adjusted, s

Method used

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  • Active control SMA metal rubber shock absorber and vibration isolation performance adjusting method
  • Active control SMA metal rubber shock absorber and vibration isolation performance adjusting method
  • Active control SMA metal rubber shock absorber and vibration isolation performance adjusting method

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0025] see figure 2 Describe this embodiment. The active control SMA metal rubber shock absorber describe...

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Abstract

The invention discloses an active control SMA metal rubber shock absorber and a vibration isolation performance adjusting method, and belongs to the field of vibration and impact protection. The problems that an existing vibration isolator is simple in structure, has natural frequency and fixed rigidity and cannot be adjusted to be applicable to various working conditions are solved. The shock absorber comprises an SMA metal rubber blank and insulated electric heating wires which are uniformly distributed in the SMA metal rubber blank, and the SMA metal rubber blank and the insulated electricheating wires are stamped into an integral piece. The temperature of the SMA metal rubber shock absorber is adjusted by changing the current introduced into the insulated electric heating wires, and the rigidity, the natural frequency, the transmission rate and the energy dissipation coefficient of the SMA metal rubber shock absorber are adjusted according to the change of the temperature of the SMA metal rubber shock absorber. The shock absorber is mainly used for vibration reduction.

Description

technical field [0001] The invention belongs to the field of vibration and impact protection. Background technique [0002] With the rapid development of the aerospace industry today, the application of vibration-damping materials in various spacecraft will face new challenges, especially in some special and harsh industries where traditional vibration-damping materials (such as ordinary rubber damping materials) are used. Faced with severe challenges under the conditions. In the service cycle of the current spacecraft, it is often affected by vibration and shock in the special environment, and among the various reasons for failure, most of them are due to factors such as engine and aerodynamic noise, which may lead to excessive The large broadband random vibration band and noise environment will then cause multiple resonance peaks in the electronic control and instrumentation of the mechanical structure, causing structural failure of the corresponding equipment, resulting ...

Claims

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Application Information

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IPC IPC(8): F16F3/12
CPCF16F3/00F16F2222/06F16F2228/066F16F2238/02
Inventor 姜洪源闫辉赵亚磊邱琳淞
Owner HARBIN INST OF TECH
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