摘要
本文提出了特征向量导数计算的选代Ｌａｎｃｚｏｓ方法，与截断Ｌａｎｃｚｏｓ方法相比，大大提高了灵敏度分析的效率。文中给出了ＦＯＲＫ和３Ｄ—ＦＲＡＭＥ两种结构为实例的计算机仿真，证明本方法不仅能充分保证精度，而且提高了计算速度。
A truncated iterative Lanczos-reduced method for sensitivity analysis is proposed.The iterative method of selecting the initial vector is introduced. Computer simulations with FORK and 3D-FRAME as examples are presented. Theoretical analysis and computer simulation show that computation accuracy and efficiency are improved by this method.
出处
《振动工程学报》
EI
CSCD
1994年第3期230-234,共5页
Journal of Vibration Engineering
关键词
结构动力分析
动态灵敏度
特征向量导数
迭代
dynamic structural analysis
dynamic sensitivity
eigenvector derivative
Lanczos method
iteration
