摘要
利用模态展开法,使用不同振动系统所对应的不同规范正交化条件,推导出具有统一形式的模态灵敏度分析的精确算法。该组算法表达简洁,易于操作,可以有效地应用于结构的模型修正、损伤识别及优化设计中。
By introducing a set of mode-shape expanded formulations and making use of all kinds of conditions about orthogonality and normalization which are subject to different corresponding dynamic system,we deduce an accurate algorithm with uniform analysis for computing mode-shape sensitivities.The expressions of the methods are concise,and the performance is easy.Then it can be efficiently applied to the fields of modal updating,damage identification,and structural optimization.
出处
《长春工程学院学报（自然科学版）》
2012年第4期119-122,共4页
Journal of Changchun Institute of Technology：Natural Sciences Edition
基金
吉林省自然科学基金资助项目(201215115)
关键词
结构动力学
灵敏度分析
模态
正交规范
特征值
structural dynamics
sensitivity analysis
mode shape
orthogonality and normalization
eigenvalue
