摘要
基于离散 Fourier变换 ,在解析方程的层次上将旋转周期结构的问题化为若干个关于局部结构的问题 。
Rotationally periodic structures appear often in scientific and engineering computation in analysis of spiral blades of propeller, stator of ultra-sonic travelling wave motor etc. The research in this area usually involves in reduction of computational effort by using cyclic matrix or group techniques after finite element or boundary element discretization. In this paper, the rotationally periodic structures are simplified into a number of smaller problems with help of discrete Fourier transformation in the continuous level. Based on this simplification, a computational approach for rotationally periodic structures is proposed.
出处
《计算力学学报》
CAS
CSCD
北大核心
2002年第1期112-113,122,共3页
Chinese Journal of Computational Mechanics
基金
国家教育部留学回国人员科研启动基金项目资助
