| 有限元频响分析中网格划分技术研究 |
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| 引用本文： | 韩增尧.有限元频响分析中网格划分技术研究[J].强度与环境,2003,30(3):18-22. |
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| 作者姓名： | 韩增尧 |
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| 作者单位： | 中国空间技术研究院飞行器总体设计部,北京,100086 |
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| 摘 要： | 阐述了利用有限元进行频响分析过程中存在的一个突出问题；简单介绍了波动理论的一些基本公式，并提出有限元频响分析时划分网格的参考标准；首先通过对简单结构(包括梁、矩形板)的有限元计算以及与解析解的对比初步验证了该方法的有效性，然后给出了两个工程算例的应用情况。
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| 关 键 词： | 有限元法 频率响应 网格划分技术 工程结构 NASTRAN软件 |
| 文章编号： | 1006-3919(2003)03-0018-05 |
| 修稿时间： | 2002年12月28 |
A Investigation on the Mesh Size of Finite Element Method in Frequency Response Analysis |
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| HAN Zeng-yao.A Investigation on the Mesh Size of Finite Element Method in Frequency Response Analysis[J].Structure & Environment Engineering,2003,30(3):18-22. |
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| Authors: | HAN Zeng-yao |
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| Abstract: | A crucial question in frequency response analysis using finite element method is presented. Some basic formulas related to the wave theories are introduced. A reference standard about the mesh size of finite element method in frequency response analysis is given. The validity of the above method is verified first through the comparison between the finite element method calculation and the classical modal theory in the simple structures including beam and rectangular plate,then,two engineering examples are applied and the results are satisfying. |
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| Keywords: | Finite element method Frequency response Mesh size High frequency NASTRAN |
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