| 陈璞.关于旋转周期结构计算的注记[J].计算力学学报,2002,19(1):112~113 |
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码上扫一扫！ |
| 关于旋转周期结构计算的注记 |
| A note on computation of rotationally periodic structures |
| 修订日期：2000-02-25 |
| DOI：10.7511/jslx20021024 |
| 中文关键词: 旋转周期结构,离散Fourier变换,计算力学 |
| 英文关键词:rotationally periodic structure,discrete Fourier transformation,computation |
| 基金项目:国家教育部留学回国人员科研启动基金项目资助 |
| 陈璞 |
| 北京大学力学与工程科学系 北京100871 |
| 摘要点击次数: 1486 |
| 全文下载次数: 8 |
| 中文摘要: |
| 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 ,指出旋转周期结构计算的另一途径 |
| 英文摘要: |
| 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. |
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