某空间站太阳电池阵中央桁架热-结构耦合动力学分析

本文研究了大型空间结构的热振动问题。提出了全区间耦合单步内非耦合的有限元计算方法。既满足了计算精度，又提高了计算效率。通过对某型空间站太阳电池阵中央桁架热振动的数值仿真，得到了若干对工程实际有一定参考价值的结论。

Thermally induced vibration of the main mast of the space station's solar arrays

As space structures orbit around the Earth in space they undergo cycles of entering into and exiting from the Earth's shadow thus exposing themselves to a wide range of temperature changes. The temperature variation may give rise to thermally induced vibration, which may compromise the capability of a system to execute its assigned mission, therefore it becomes an important and pressing task to study the thermally induced disturbance of large space structures such as solar arrays. In this paper, the thermally induced vibration of the main mast of the space station's solar arrays is studied. We present a new method in which the thermal- structure is coupled in whole time domain but decouple in time sub step. By this method we can analyze the problem more efficiently without the loss of precision. Some important conclusions have been reached, which are instructive in engineering design.