弹簧质量系统Number of eigenvalues found on the interval exceeds the expect

Maybn

求10阶以上自振频率提示错误约束不足，百思不得其解，求好人帮忙运行下

zsq-w

Number of eigenvalues found on the interval exceeds the expected number. This may happen if a system is overconstrained. Run a static perturbation analysis to perform the overconstraint check. Also this may happen if a system has rigid body modes and no shift is given.这个好像没有显示约束不足，说的是过约束。

zsq-w

step里面的算法改为subspace就行了，我试了下，可以算12阶。

Maybn

zsq-w 发表于 2011-11-8 16:21
step里面的算法改为subspace就行了，我试了下，可以算12阶。

w好人啊，我试试去先，感谢！