精选优质文档-倾情为你奉上基于Matlab的多自由度系统固有频率及振型计算阅读：-04-13 21:38标签：可参考文涛，基于Matlab语言的多自由度振动系统的固有频率及主振型计算分析，2007对于无阻尼系统VEC,VAL=eig(inv(A)*K)对于有阻尼系统，参考振动论坛计算程序输入M，D，Kfunction v,w,zeta=vbr_sf(m,d,k)%vbr_sf vbr_sf(m,d,k)% v,w,zeta=vbr4(m,d,k)% function vbr_sf finds the mode shapes and natural frequencies of% a linear second order matrix equation. 有阻尼二阶矩阵方程% v,w=vbr_sf(m,k) finds the mode shapes and natural frequencies% for the undamped case.if nargin=2k=d;v,w=eig(mk);w=sqrt
