摘要
本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构特征向量灵敏度的贡献。提出非比例阻尼结构特征向量灵敏度计算的高精度级数展开方法，提高计算精度。文中的算例表明本文方法的有效性和正确性。
The contribution of high-frequency modes to eigenvector sendtivity of non proportional visco-damping strictures is expressed by the low-frequency modes and the system matrixes. An accurate series expansion method for calculating eigenvector sensitivity of non proportional visco-damping structures is established in which the calculation preciaion is improved greatly. Numerical examples Show that the method is correct and efficient.
出处
《工程力学》
EI
CSCD
北大核心
2000年第1期63-67,共5页
Engineering Mechanics
基金
福建省自然科学基金!E9810012
关键词
阻尼结构
灵敏度
模态展开法
级数展开
特征向量
visco-damping structure
sensitivity
modal superposition method
series expansion method
