摘要
柔性矩形板是航天器上广泛应用的典型构件.用有限元法对柔性矩形板进行离散化处理,得到了体坐标系下的结点位移.在给定系统的大范围运动时,得到了柔性矩形板上任意点的速度和加速度,进而,依据Kane方程建立了含有结构阻尼的矩形板系统动力学方程.根据系统动力学方程,给出了数值仿真结果,同时提出了减小柔性体变形的方法.
The flexible rectangular plates are typical parts widely used on the spacecrafts. The flexible rectan- gular plates are discretized by means of finite element method （FEM） and the nodal displacement of rectangular plates is obtained in the body coordinate system. The velocity and acceleration of arbitrary points in flexible rectangular plates are accordingly formed when the overall motions are given. Then the dynamic equations of rectangular plates including structural damping terms are established according to the combination of FEM and Kane＇ s equations. The numerical simulation results are obtained based on the dynamic equations. Hence, the methods to reduce the greater deformation of flexible bodies are proposed.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2009年第1期232-234,238,共4页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50675154)
