A satellite structure based on elastic airbags to realize satellite vibration isolation

Abstract

A satellite structure for satellite rocket vibration isolation based on elastic airbags, including a satellite root vibration isolation airbag group fixed between the satellite rocket connection and separation device and the root of the satellite body; one end is fixed at each corner of the top of the satellite body, and the other end is close to the rocket The anti-collision airbag group at the top of the satellite at the inner wall of the fairing; the vibration isolation airbag group at the base of the satellite is composed of a high-strength sealed airbag filled with high-pressure gas, which is used to isolate the vibration and impact load transmitted by the installation interface of the satellite and rocket, and at the same time support and fix the satellite body The anti-collision airbag group on the top of the satellite is also composed of high-strength sealed airbags filled with high-pressure gas. When the vibration displacement of the top of the satellite is too large, it acts as an anti-collision buffer for the satellite and the inner wall of the rocket fairing to avoid damage to the satellite structure caused by the impact load; The invention has simple structure and obvious vibration isolation effect, can effectively reduce the vibration load on satellite products, and can greatly reduce 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

Images