大型柔性空间结构动特性分析的有限元方法  

DYNAMIC ANALYSIS OF LARGE FLEXIBLE SPACE STRUCTURES BY FINITE ELEMENT METHOD

作　　者：侯之超[1] 郑兆昌[1] 

机构地区：[1]清华大学工程力学系

出　　处：《宇航学报》1996年第4期83-85,共3页Journal of Astronautics

摘　　要：本文通过设计合理的内外存交换过程，改造有限元法、Ｌａｎｃｚｏｓ算法，从而使得对上万自由度的大型柔性空间结构的静动力计算可以在普通３８６微机上进行。In this paper, the authors modify the FEM and Lanczos algorithm by designing proper incore/outcore processes for the corresponding matrix computation. By means of this, the computation on dynamic characteristics of large flexible space structures with DOFs up to more than 10,000 can be carried out in a general PC 386. Examples show that these approaches are right and efficient.

关 键 词：大型结构 有限元 柔性 空间结构 

分 类 号：V414.1[航空宇航科学与技术—航空宇航推进理论与工程]