| 预报基座结构噪声的有限元方法研究 |
| |
| 引用本文： | 朱锡,胡忠平,石勇.预报基座结构噪声的有限元方法研究[J].海军工程大学学报,2003,15(6):33-36. |
| |
| 作者姓名： | 朱锡 胡忠平 石勇 |
| |
| 作者单位： | 海军工程大学,船舶与海洋工程系,湖北,武汉,430033 |
| |
| 摘 要： | 有限元法适用的频率范围与单元的大小有关,为了用有限元准确地描述高频振动(结构噪声),一个振动波长中至少划分4个单元.由此,根据研究问题的频率范围更合理地确定单元的大小,并适当选取计算的规模,预报了某基座模型2000Hz内的结构噪声,此研究具有工程应用意义.
|
| 关 键 词： | 结构噪声 预报 有限元 方钢 |
| 文章编号： | 1009-3486(2003)06-0033-04 |
| 修稿时间： | 2003年2月7日 |
Research on FEM to forecast structural noise of basement |
| |
| ZHU Xi,HU Zhong-ping,SHI Yong.Research on FEM to forecast structural noise of basement[J].Journal of Naval University of Engineering,2003,15(6):33-36. |
| |
| Authors: | ZHU Xi HU Zhong-ping SHI Yong |
| |
| Abstract: | The frequency range applicable for FEM is related to the size of elements. In order to exactly describe vibration of high frequency (structuralnoise), there is no less than 4 elements in avibration wave, whichis applied to optimize the quantity of elements. TheFEM succeeds incalculatingstructural noise of some basement in range of 2 000 Hz. The research is of practical value to a certain extent in engineering. |
| |
| Keywords: | structural noise forecast FEM square bar |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
