what's wrong?
Warning: Matrix is singular to working precision.what can I do next? 你的矩阵对于精确的操作空间过于单一？
你还是把你的问题都发送上来大家看的更明白一些
[ 本帖最后由 eight 于 2007-5-7 09:35 编辑 ]
回复 #2 咕噜噜 的帖子
omegast=0;%起始频率omegaed=2000;%终止频率
omegabc=100;%频率变换步长
omegam=omegast:omegabc:omegaed;%频率矩阵
%计算在不同转动频率下的特征频率
for ii=1:length(omegast:omegabc:omegaed)
omega=omegam(ii);%赋值转动频率
...
...
am=[-omega^2.*mTotal+kTotal,omega.*cTotal;-omega.*cTotal,-omega^2.*mTotal+kTotal];
bm=;
answer=omega^2.*(am^(-1)*bm);%求解出响应
end
problem is solved! thanks!
omega cannot be given zero!!!
[ 本帖最后由 eight 于 2007-5-7 10:26 编辑 ] 原帖由 sunsky 于 2007-5-7 10:10 发表 http://forum.vibunion.com/forum/images/common/back.gif
omegast=0;%起始频率
omegaed=2000;%终止频率
omegabc=100;%频率变换步长
omegam=omegast:omegabc:omegaed;%频率矩阵
%计算在不同转动频率下的特征频率
for ii=1:length(omegast:omegabc:omegaed)
...
:@)解决了就好
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