Satellite micro-vibration test multi-point suspension system and design method thereof

A system design and micro-vibration technology, which is applied in space navigation equipment, simulation devices of space navigation conditions, transportation and packaging, etc., can solve the problems of not being able to meet the weightlessness state, high frequency, large longitudinal stiffness, etc., and achieve convenient and fast construction. Low frequency, high versatility effect

Active Publication Date: 2014-01-01
SHANGHAI SATELLITE ENG INST
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AI Technical Summary

Problems solved by technology

However, the conventional steel wire rope suspension method has large longitudinal stiffness and high frequency, which cannot meet the requirements of the weightless state.
Moreover, the single-point suspension method is only suitable for light-weight and small-volume loads, and it cannot meet the requirements for suspended objects with large masses and large volumes such as entire stars.

Method used

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  • Satellite micro-vibration test multi-point suspension system and design method thereof
  • Satellite micro-vibration test multi-point suspension system and design method thereof

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0034] A satellite micro-vibration test multi-point suspension method, comprising the following steps:

[0035] Step 1: Select the elastic rope, and analyze the stiffness characteristic curve of a single elastic rope under different loading conditions;

[0036] Step 2: According to the stiffness characteristic curve of the elastic rope per unit length in step 1, while ensuring a certain safety margin, select the region in the stiffness characteristic curve of the elastic rope where the stiffness c...

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Abstract

The invention provides a satellite micro-vibration test multi-point suspension system and a design method thereof. The method utilizes the excellent longitudinal low-rigidity characteristic of elastic ropes to design a frequency of the suspension system according to an intrinsic frequency of a suspended object, selects the number and rigidities of the suspension elastic ropes and analyzes difference and similarity of a single-point suspension method and a multi-point suspension method so as to obtain the characteristics and the composition of the suspension system suitable for different working conditions and simulate an in-orbit state of a satellite to fulfill the aim of a micro-vibration test. The suspension method has various forms, is flexible to design and is convenient and rapid to set up; the number and the suspension positions of the suspension elastic ropes can be changed according to the specific test conditions; and the design method is widely applied, is convenient for interface design, effectively utilizes the space and has higher universality.

Description

technical field [0001] The invention relates to a satellite micro-vibration test method, in particular to a satellite micro-vibration test multi-point suspension system and a design method thereof. Background technique [0002] With the development of aerospace technology, the precision requirements for sensitive loads are getting higher and higher, and the application of vibration suppression is becoming more and more urgent. The micro-vibration test conditions need to be continuously updated and guaranteed. How to simulate the in-orbit weightlessness state of the satellite and its sensitive loads, and realize the performance test under the condition of micro-vibration disturbance is particularly important. [0003] In order to simulate the state of weightlessness, the aerospace field often uses suspension tests to simulate the on-orbit performance of the assessment load. If the influence of the suspension system on the test is required to be negligible, the frequency of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G7/00
Inventor 申军烽钟鸣蒋国伟陆国平沈海军虞自飞黄俊杰
Owner SHANGHAI SATELLITE ENG INST
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