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| 用复模态综合和优化方法求解结构局部动力修改逆问题 | |
| 引用本文： | 于德介 宋健伟. 用复模态综合和优化方法求解结构局部动力修改逆问题[J]. 振动工程学报, 1992, 5(3): 282-287 |
| 作者姓名： | 于德介 宋健伟 |
| 作者单位： | 湖南大学振动中心，天津大学机械工程系，天津大学机械工程系 长沙，410082，天津，300072，天津，300072 |
| 摘 要： | 本文提出一种结构局部动力修改逆问题的求解方法。该方法利用复模态综合建立结构在广义坐标下的动力学模型,然后在广义坐标下导出以局部结构参数为未知量的逆特征方程,最后用优化方法求出结构修改参数。数值算例表明,本文方法精度能满足工程设计要求。 |
| 关 键 词： | 复模态综合 结构动力学 逆特征值 |
Solving Inverse Problems of Structural Local Dynamic Modification by Using of Complex Modal Synthesis and Optimization Methods |
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| Yu Dejie. Solving Inverse Problems of Structural Local Dynamic Modification by Using of Complex Modal Synthesis and Optimization Methods[J]. Journal of Vibration Engineering, 1992, 5(3): 282-287 | |
| Authors: | Yu Dejie |
| Abstract: | A method for solving inverse problems of structural local dynamic modification is proposed in this pa-per.In this method.the inverse eigenvalue equation in terms of generalized coordinates is constructed atfirst and then,the unknown local structural parameters are solved by use of optimization methods.The nu-merical example shows that the accuracy of this method satisfies the engineering requirements. |
| Keywords: | modal synthesis method model building complex modal synthesis structural dynamic modification inverse eigenvalue problem |
| 本文献已被 CNKI 维普 等数据库收录！ | |