某卫星微振动建模与仿真

Modeling and simulation of micro-vibration for a satellite

摘要: 针对某卫星微振动力学环境，参考IME颤振分析建模方法，建立了一种卫星刚柔耦合多体动力学微振动仿真模型，并通过地面试验验证了利用微振动仿真模型预测卫星在轨微振动响应的有效性，阐述了卫星在轨微振动响应仿真计算预测方法。利用该微振动仿真模型能较准确地预测卫星在轨微振动响应以及微振动传递特性。

Abstract: Based on the method of micro-vibration modeling of IME, a multi-flexible coupling dynamics model is developed to analyze the micro-vibration of a satellite. The results agree well with the ground micro-vibration test, which shows that the model could be used to test the micro-vibration behavior of the satellite in orbit and the transfer characteristics of micro-vibration signals in the satellite structure.