基于耦合凝聚的二次修改的结构拓扑重分析
发布时间：2018-10-10 13:38
【摘要】：研究了连续两次修改的结构动力学拓扑重分析问题。基于我们提出的耦合凝聚方法,独立和耦合质量正交化处理措施,再结合瑞利-里兹分析法,形成了适用于两次修改的增加自由度的结构拓扑大修改的快速动力学重分析方法。该方法减少了两次直接分析所需要的大量计算量,且操作简单,易于实现。数值算例结果表明,对于这类涉及两次修改的拓扑大修改重分析问题,所提的方法是十分有效的。
[Abstract]:The topological reanalysis of structural dynamics with two successive modifications is studied. Based on the coupling condensation method, the independent and coupling mass orthogonalization measures, and the Rayleigh-Ritz analysis method, a fast dynamic reanalysis method for the structural topology modification with two degrees of freedom is developed. This method reduces the amount of computation required for two direct analysis, and is easy to implement. The numerical results show that the proposed method is very effective for this kind of reanalysis problem involving two modifications.
【作者单位】： 长沙理工大学汽车与机械工程学院;
【基金】：国家自然科学基金项目(51305048) 湖南省高等学校科学研究一般项目(11C0045)资助~~
【分类号】：O342
，
本文编号：2261988
[Abstract]:The topological reanalysis of structural dynamics with two successive modifications is studied. Based on the coupling condensation method, the independent and coupling mass orthogonalization measures, and the Rayleigh-Ritz analysis method, a fast dynamic reanalysis method for the structural topology modification with two degrees of freedom is developed. This method reduces the amount of computation required for two direct analysis, and is easy to implement. The numerical results show that the proposed method is very effective for this kind of reanalysis problem involving two modifications.
【作者单位】： 长沙理工大学汽车与机械工程学院;
【基金】：国家自然科学基金项目(51305048) 湖南省高等学校科学研究一般项目(11C0045)资助~~
【分类号】：O342
，
本文编号：2261988
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