Satellite structure for realizing satellite-rocket vibration isolation based on elastic airbag

Abstract

The invention provides a satellite structure for realizing satellite-rocket vibration isolation based on an elastic airbag. The satellite structure comprises a satellite root vibration isolation airbag assembly fixed between a satellite-rocket connection separation device and a satellite body root, and a satellite top anti-collision airbag assembly, wherein one end of the satellite top anti-collision airbag assembly is fixed at corners at the top of the satellite body, and the other end of the satellite top anti-collision airbag assembly is close to the inner wall of a rocket firing; the satellite root vibration isolation airbag assembly comprises high-strength sealed airbags filled with high-pressure gas, and is used for isolating the vibration impact load of satellite-rocket installation interface transfer and supporting and fixing the satellite body; and the satellite top anti-collision airbag assembly also comprises high-strength sealed airbags filled with high-pressure gas, and is used as anti-collision cushion for the satellite and the inner wall of the rocket firing when the vibration displacement of the satellite top is overlarge, so as to avoid damage of the collision load on the satellite structure. The satellite structure is simple in structure mode and remarkable in vibration isolation effect, and can be used for effectively reducing the vibration load endured by a satellite product and greatly reducing the development cost of satellite components.

Description

technical field [0001] The invention belongs to the technical field of satellite structures, and in particular relates to a satellite structure for realizing satellite-rocket vibration isolation based on elastic airbags. Background technique [0002] Satellite products will be affected by various vibrations and shock loads during the launch phase. Excessive vibration and shock loads will directly lead to damage or failure of products on satellites. Among them, the main load sources on the satellite are the vibration load generated during the operation of the rocket engine, the separation between the stages of the rocket engine, and the impact load of the separation of the rocket and the satellite. This vibration and impact load are transmitted to the docking surface of the rocket through the rocket structure. The form of excitation is input to the satellite body, causing the structural vibration of satellite products. The existing technology cannot solve the problem of vibr...

AI Technical Summary

Problems solved by technology

The existing technology cannot solve the problem of vibration transmission between satellites and rockets. Generally, the vibration bearing capacity is only improved by improving the strength of the satellite structure, which can avoid the structural failure caused by vibration and impact environment to a certain extent. The result is that the weight of the satellite structure and the design cost continue to increase

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