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Eddy current vibration isolator for suppressing micro vibration of space vehicle

A micro-vibration and eddy-current technology, applied in non-rotational vibration suppression, shock absorber, spring/shock absorber design features, etc., can solve problems such as low sensitivity, complex structure, poor reliability, etc. Low dependence, high damping coefficient effect

Inactive Publication Date: 2018-12-28
BEIJING SPACE TECH RES & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing viscous damping isolators have defects such as complex structure, poor reliability, and low sensitivity.

Method used

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  • Eddy current vibration isolator for suppressing micro vibration of space vehicle
  • Eddy current vibration isolator for suppressing micro vibration of space vehicle
  • Eddy current vibration isolator for suppressing micro vibration of space vehicle

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Embodiment Construction

[0031] The description of the embodiments in this specification should be combined with the corresponding drawings, and the drawings should be regarded as a part of the complete specification. In the drawings, the shapes or thicknesses of the embodiments may be exaggerated and marked for simplification or convenience. Furthermore, parts of each structure in the drawings will be described separately. It should be noted that elements not shown in the drawings or described in words are forms known to those of ordinary skill in the art.

[0032] The descriptions of the embodiments here, any references to directions and orientations are just for convenience of description, and should not be construed as any limitation to the protection scope of the present invention. The following descriptions of the preferred embodiments involve combinations of features, which may exist independently or in combination, and the present invention is not particularly limited to the preferred embodime...

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Abstract

The invention relates to an eddy current vibration isolator for suppressing micro vibration of a space vehicle. The eddy current vibration isolator comprises a rigid structure (1); a damping structure(2), located inside the rigid structure (1); and a magnetic sealing structure (3), located on the lower side of and inside the rigid structure and used for sealing the damping structure (2), whereinthe damping structure (2) comprises a fixed part (21) and a moving part (22) located at the periphery of the fixed part (21); the moving part (22) is connected with the rigid structure (1); and the moving part (22) comprises an electromagnetic soft iron sleeve (221). The eddy current vibration isolator for suppressing the micro vibration of the space vehicle has characteristics of simple structure, high reliability, high sensitivity, high environmental adaptability and the like.

Description

technical field [0001] The invention belongs to the technical field of spacecraft micro-vibration suppression, in particular to an eddy current vibration isolator used for spacecraft micro-vibration suppression. Background technique [0002] Micro-vibration (referred to as jitter or micro-vibration by foreign research institutions) refers to the movement of the spacecraft during orbital operation, mainly by rotating parts (such as torque control gyroscopes, high-speed rotating parts such as momentum wheels, stepping parts such as solar cell drive mechanisms, The small reciprocating motion or oscillation of the spacecraft caused by the normal operation of the camera pendulum mirror and other oscillating parts. [0003] In general, the main impact of micro-vibration on the spacecraft is mainly manifested in the following two aspects: [0004] Microvibration will reduce the main performance indicators of payloads (especially sensitive payloads), such as image quality of remote...

Claims

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Application Information

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IPC IPC(8): F16F15/03
CPCF16F15/03F16F2222/06F16F2230/30
Inventor 王昊游进苏南张鹏张志成
Owner BEIJING SPACE TECH RES & TEST CENT