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Variable stiffness flexible damping outriggers

A variable stiffness and flexible technology, applied in the field of spacecraft, can solve the problems of small damping, weak formant suppression ability, vibration isolation frequency can not take into account the flywheel disturbance frequency, etc., to achieve the effect of reducing the impact

Active Publication Date: 2020-11-24
CHANGGUANG SATELLITE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional flexible damping legs are generally processed by metal lightweight design, so the damping provided by the whole leg is small, and the ability to suppress the resonance peak at low frequencies is weak
In addition, since the rotation speed of the flywheel of satellite in-orbit devices will change according to the requirements of the mission, a single fixed vibration isolation frequency cannot take into account the disturbance frequency of the flywheel at each rotation speed, and the vibration isolation efficiency cannot be optimal all the time.

Method used

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  • Variable stiffness flexible damping outriggers
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Effect test

Embodiment 1

[0044] The flexible damping leg of the present application may have one or more of the above-mentioned flexible leg components, and the specific number and distribution of the flexible leg components may be properly adjusted according to actual usage conditions.

[0045] Specifically, when the flexible damping legs include multiple flexible leg assemblies, the multiple flexible leg assemblies are evenly distributed on the lower part of the top support 1 through the above-mentioned flexible transition 2 .

Embodiment 2

[0047]The payload of the present application and the satellite platform can be connected by one or more flexible damping legs. Similarly, the number and distribution of the flexible damping legs can be adjusted appropriately according to actual usage conditions.

[0048] In the above technical solution, the variable stiffness flexible damping leg provided by the present invention has the following beneficial effects:

[0049] The flexible damping outrigger of the present invention is installed between the load and the satellite platform. Its unique ability to adjust the stiffness can set the optimal damping frequency for different disturbance frequency peaks. Control within the acceptable range of load;

[0050] The sleeve 4 of the flexible damping leg of the present invention is filled with a polymer 6, and the filled polymer 6 can be silicone rubber, butyl rubber, epoxy resin, polyurethane material or other forms of polymer 6, so that the The damping outrigger has the adva...

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Abstract

The invention discloses a variable-stiffness flexible damping supporting leg. The variable-stiffness flexible damping supporting leg comprises a top support fixedly connected to an external load and aflexible supporting leg assembly mounted on the lower part of the top support, and the lower end of the flexible supporting leg assembly is fixedly connected to an external satellite platform; and the flexible supporting leg assembly is provided with a sleeve which is filled with a polymer. The sleeve of the flexible damping supporting leg is filled with the polymer which can be silicone rubber,butyl rubber, epoxy resin, a polyurethane material or other forms of polymers, so that the damping leg has the advantages of low rigidity, high damping, variable-stiffness and the like, and the variable-stiffness flexible damping supporting leg can greatly reduce the influence of micro-vibration generated by flywheels and other disturbance sources during the period of on-orbit on the load.

Description

technical field [0001] The invention relates to the technical field of spacecraft, in particular to a variable rigidity flexible damping outrigger used for connecting loads and satellite platforms. Background technique [0002] In the satellite launch technology, the payload and the satellite platform need to be fixedly connected by flexible damping outriggers. The purpose is to solve the disturbance caused by the flywheel and other disturbance components installed inside the high-resolution remote sensing satellite to the imaging of the optical system. The influence that cannot be ignored, when the above-mentioned disturbance force is serious, it will cause image distortion and other phenomena. Therefore, it is particularly important to suppress the micro-vibration. In the prior art, the main way to eliminate the disturbance force is to isolate the sensitive load through the above-mentioned flexible damping legs. [0003] Traditional flexible damping outriggers are genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16M13/02F16F15/08
CPCF16F15/08F16M13/02
Inventor 陈善搏谷松张雷段胜文高飞姜姝羽
Owner CHANGGUANG SATELLITE TECH CO LTD
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