Then with the use of general inverse and matrix projection theorem,a new parameter with good identification effect is deduced,which is called projection modulus of residual vector,and with which the damaged element is easily identi.
为了找到一个对小损伤较敏感的参数,在结构自由振动微分方程基础上,结合损伤结构的测试数据(用有限元模型的计算结果来模拟),得到残余向量,利用广义逆和矩阵投影定理,导出了一个具有很好识别效果的参数:残余向量投影范数。
Studying the calculus of minimax residue vector,we can translate solving minimax method for fitting a curve into solving consistency equations.
文章提出了曲线拟合的极小极大法,通过研究极小极大剩余向量的计算方法,将问题转化为求解相容方程组问题。