Multi-model electromagnetic vibration absorber

A vibration absorber, multi-modal technology, applied in the direction of shock absorbers, shock absorbers, magnetic springs, etc., can solve the problems of high energy consumption, complex structure, difficulty, etc., and achieve easy construction, good control, and low cost. Effect

Active Publication Date: 2016-01-20
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Active electromagnetic vibration absorbers can achieve multi-mode vibration absorption by designing control algorithms, but their structures are complex and energy consumption is high, and corresponding contr

Method used

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  • Multi-model electromagnetic vibration absorber
  • Multi-model electromagnetic vibration absorber
  • Multi-model electromagnetic vibration absorber

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Embodiment Construction

[0028] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] 1. Electromechanical coupling analysis of electromagnetic vibration absorber

[0030] for figure 1 The electromagnetic shock absorber shown mainly includes: an elastic frame body 1, a shock absorber mass 2, a permanent magnet 3, an electromagnetic coil sleeve 4, an electromagnetic coil 5 and an external circuit 6;

[0031] The permanent magnet 3 is fixedly connected with the controlled structure 7, the vibration absorber mass 2 is fixedly installed on the top of the elastic frame body 1, the electromagnetic coil sleeve 4 is fixedly installed on the top of the inner wall of the elastic frame body 1, and the electromagnetic coil sleeve 4 The bottom of the bottom is not in contact with the inner wall of the elastic frame body 1. The remanence magnetism of described permanent magnet 3 in the present invention is 1.1T~1.3T, compris...

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Abstract

The invention discloses a multi-model electromagnetic vibration absorber. The multi-model electromagnetic vibration absorber is characterized by mainly comprising an elastic frame body, a vibration absorber mass, a permanent magnet, an electromagnetic coil sleeve, an electromagnetic coil and an external circuit, wherein the permanent magnet and a controlled structure are fixedly connected; the vibration absorber mass is fixedly mounted on the top of the elastic frame body; the electromagnetic coil sleeve is fixedly mounted on the top of the inner wall of the elastic frame body; and the bottom of the electromagnetic coil sleeve does not contact with the inner wall of the elastic frame body. The electromagnetic coil is wound on the electromagnetic coil sleeve, and the two ends of the electromagnetic coil are connected with the external circuit to form a closed circuit. According to the multi-model electromagnetic vibration absorber disclosed by the invention, the external circuit can eliminate inductance influences of the coil and can improve a multi-model damping coefficient of the system, so that the multi-model vibration absorption characteristic is realized.

Description

technical field [0001] The invention relates to a multi-mode electromagnetic shock absorber. The invention combines the development requirements of the space-borne large-scale flexible deployable antenna, and improves the ability of the large-scale flexible deployable antenna to resist vibration disturbance. Background technique [0002] In order to meet the envelope requirements of the fairing during satellite launch, large-scale antennas generally adopt the expandable form. When the satellite is launched, the antenna is locked and stored on the satellite platform, and the antenna is deployed to the working state after entering orbit. In addition to meeting the established mission requirements, this type of antenna also needs to have the function of folding and unfolding. Due to the large aperture of the large-scale deployable antenna, its unfolded state will seriously block the satellite. At the same time, if it is too close to the satellite body, there may be a problem o...

Claims

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Application Information

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IPC IPC(8): F16F6/00F16F7/104
Inventor 王朋朋方永刚薛永刚王峰王辉王磊王波
Owner XIAN INSTITUE OF SPACE RADIO TECH
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