自适应结构频率和阻尼比的计算

张连文; 夏人伟; 曾广武

自适应结构频率和阻尼比的计算

1.
华中理工大学交通学院船舶设计室, 武汉 430074;
2.
北京航空航天大学宇航学院, 北京 100083

基金项目: 国家863基金资助项目(863-2-4-4-4)

详细信息

作者简介:
张连文(1965- ),男,讲师,博士.

中图分类号: V414.33
计量
- 文章访问数: 2405
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- 被引次数: 0
出版历程
- 收稿日期: 1998-07-27
- 修回日期: 1999-02-18
- 刊出日期: 1999-06-15

Computation of Frequencies and Damping Ratios for Adaptive Structures

1.
Laboratory of Ship Structure Design, Faculty of Traffic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P R China;
2.
Faculty of Space Navigation, Beijing University of Aeronautics and Astronautics, Beijing 100083, P R China

摘要

摘要: 本文给出状态空间法的一种新技巧,用于求解自适应结构的振动频率和阻尼比。当采用集中质量法时,状态矩阵的Cholesky分解具有解析式。从而既可提高计算精度,又可节约计算时间。最后以算例加以说明。
- 自适应结构 /
- 主动元件 /
- 状态空间法 /
- 频率 /
- 阻尼比
Abstract: In this paper,a new technique of state vector approach to solving damping ratios of adaptive structures is proposed,by which the state matrix can be analytically conducted the Cholesky decomposition,providing that the mass matrix is derived by lumped method.In this case,not only the computational accuracy is raised,but also the numerical operations are reduced.Finally,some numerical results are presented to show that the solution method is simple and efficient.
- adaptive structure /
- active member /
- state vector approach /
- frequency /
- damping ratio

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参考文献(15)

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