摘要
提出了一种逆优化系统识别动态载荷的方法.该方法避免了一般载荷识别中频响函数求逆运算中由于矩阵病态而引起的运算误差及运算失败,从而提高了识别精度,为动态载荷,特别是宽频带。
A method using inverse optimizing system analysis to identify a dynamic load is presented, which can reduce arithmetic errors and avoid arithmetic failure produced by the ill condition of the FRF matrix in inverse operation of the matrix. Thus, the precision of identification can be raised. This method provides an efficient way for dynamic load identification, especially for impact load which has the wide frequency bandwidth.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1997年第3期5-7,共3页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金
博士点基金
关键词
载荷识别
工程结构
动态载荷
冲击载荷
dynamic load identification
inverse analytical technique
impact