Simulation method used for satellite high-precision load ground weightlessness

A technology of weightless state and simulation method, which is applied in the satellite field to achieve the effects of stable suspension state, low natural frequency and convenient operation

Active Publication Date: 2017-02-22
SHANGHAI INST OF SATELLITE EQUIP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the existing microgravity state simulation methods such as air flotation method, suspension method, and balloon method can meet the above requirements

Method used

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  • Simulation method used for satellite high-precision load ground weightlessness
  • Simulation method used for satellite high-precision load ground weightlessness
  • Simulation method used for satellite high-precision load ground weightlessness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The application of the flexible double-suspension system is described in detail below by taking the flexible double-suspension working condition in the micro-vibration test of a certain type of satellite as an example.

[0024] 1 Introduction to Micro Vibration Test

[0025] A certain type of satellite is equipped with a load sensitive to micro-vibration. In order to ensure the on-orbit performance of the load, a micro-vibration suppression subsystem has been specially developed for it. In order to obtain the micro-vibration environment of the whole satellite and verify the performance of the micro-vibration suppression system, it is necessary to carry out Whole-star micro-vibration test.

[0026] The micro-vibration suppression subsystem can be divided into a micro-vibration isolation device (vibration isolator) and a micro-vibration unlocking device according to its composition. There are 4 sets of vibration isolation devices and 6 sets of unlocking devices, which ar...

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Abstract

The present invention discloses a simulation method used for satellite high-precision load ground weightlessness. The method comprises the steps of 1 adjusting the attitude of a satellite; 2 unlocking a vibration isolation device; 3 unloading the head of a load photoelectric precision machine; 4 suspending the satellite flexibly; 5 adjusting the satellite horizontally; 6 statically placing the satellite; 7 readjusting the satellite horizontally; 8 readjusting the unloading force of the head of the load photoelectric precision machine.

Description

technical field [0001] The invention relates to the field of satellites, in particular to a method for simulating the ground weightless state of satellite loads. Background technique [0002] Micro-vibration refers to the broadband and low-intensity vibration caused by the rotation of moving parts or the alternation of space cold and heat during the operation of the spacecraft. Generally, it will not cause structural damage but affect the work of the payload. In order to ensure the imaging accuracy of high-precision payloads such as optical cameras, a vibration isolation device is usually installed between the payload optical engine head and the satellite body to suppress microvibration. [0003] In order to verify the performance of the vibration isolation device, the working state of the satellite in orbit is required, that is, the microgravity state of the satellite body and the head of the optical payload needs to be simulated separately, and the two are only connected b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01M7/02G01M99/00
CPCG01M7/00G01M13/00G01M99/008
Inventor 张伟陈小弟袁佳晶徐晔王剑波徐辉
Owner SHANGHAI INST OF SATELLITE EQUIP
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