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| 剪切变形和转动惯量对杆系结构动力特性的影响 | |
| 引用本文： | 杨正宇. 剪切变形和转动惯量对杆系结构动力特性的影响[J]. 金陵科技学院学报, 2006, 22(3): 12-16 |
| 作者姓名： | 杨正宇 |
| 作者单位： | 哈尔滨工业大学,黑龙江,哈尔滨,150090 |
| 摘 要： | 分别通过简便准确的解析频率公式和ANSYS有限元模态分析,计算剪切变形与转动惯量对杆系结构自振频率的影响;研究了可以使用Bernoulli梁模型的梁的具体范围;比较了有限元与精确解的差别;分析了差别产生的原因;指出了忽略剪切变形和转动惯量对损伤识别结果在工程上产生的影响. |
| 关 键 词： | 自振频率 剪切变形 转动惯量 ANSYS有限元分析 |
| 文章编号： | 1672-755X(2006)03-0012-05 |
| 修稿时间： | 2006-04-28 |
The Effect Analysis of Shear Deformation and Rotatory Inertia on the Dynamic Characters of a Link |
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| YANG Zheng-yu. The Effect Analysis of Shear Deformation and Rotatory Inertia on the Dynamic Characters of a Link[J]. Journal of Jinling Institute of Technology, 2006, 22(3): 12-16 | |
| Authors: | YANG Zheng-yu |
| Abstract: | Commonly,neglecting the effect of shear deformation and rotatory inertia brings some error when selecting a computational modeling for a link.In this paper,the effect of shear deformation and rotatory inertia on the free vibration frequency of a link is studied through a simple and accurate formula for the calculation of frequency.The frondose range of using Bernoulli beam properly is analyzed.The comparison is taken between the accurate solution and the ANSYS solution,and the reason which the difference produces is analyzed.At last the implication of finding the error in engineering is indicated. |
| Keywords: | free vibration frequency shear deformation rotatory inertia ANSYS analysis |
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