| 计算子空间载荷响应的一种改进方法 |
| |
| 引用本文： | 徐稼轩,郑铁生.计算子空间载荷响应的一种改进方法[J].西安交通大学学报,1991,25(3):127-132. |
| |
| 作者姓名： | 徐稼轩 郑铁生 |
| |
| 作者单位： | 西安交通大学工程力学系
(徐稼轩)，西安交通大学工程力学系(郑铁生) |
| |
| 摘 要： | 多台不同转速的压缩机同时在一个管系的不同位置工作时,由于流体脉动产生的激振力属于子空间载荷类型。本文介绍一种求这类子空间载荷响应的改进方法,它是Wilson(1982)思想的推广;同时由于采用单个向量迭代的方式,所以比Pnild(1985)方法的计算工作量少,并便于编制程序。文中导出了它的基本计算公式,并进行了精度分析和给出了实用的载断准则,文后分析了一个实例。
|
| 关 键 词： | 压缩机 子空间 动力响应 振动特性 |
AN IMPROVED METHOD OF COMPUTING SUBSPACE LOAD RESPONSE |
| |
| Xu Jiaxian,Zheng Tiesheng.AN IMPROVED METHOD OF COMPUTING SUBSPACE LOAD RESPONSE[J].Journal of Xi'an Jiaotong University,1991,25(3):127-132. |
| |
| Authors: | Xu Jiaxian Zheng Tiesheng |
| |
| Institution: | Xu Jiaxian;Zheng Tiesheng Department of Engineering Mechanics |
| |
| Abstract: | When some compressor sets with different rotation speeds work at several positions in a piping
system, exciting forces of subspace load will be produced because of fluid pulsatins. In this paper an
improved method which is a generalization of the RDS method , --is presented for computing the
structural responses excited by this kind of subspace load. Compared with a methed given in the
computation losts of the new method are reduced and algorithm is easy to program a it uses single-vec-
tor iteration. The basic compution formulae of the algorithm and practical truncated criterion are giv-
en, and the accuracy of the new method is analysed. Finally, a practical numerical example is com-
puted and analysed |
| |
| Keywords: | vibration characteristics dynamid response structural dynamic analysis |
| 本文献已被 CNKI 维普 等数据库收录！ |
