proe/mechanica 出错 求助

abcuy

The design study terminated abnormally.
The model is insufficiently constrained for the analysis.
Please review the element connections, properties, and
constraints.
You may be able to locate your model's problem area by
using Mechanica database ID numbers. ID numbers can be
queried using the "Entity ID" macro in Pro/MECHANICA
Standalone.  The following ID numbers are associated
with this error:
310084
310096
310112
310146
310182
310190
The unconstrained degree of freedom can be seen by running
a constrained Modal Analysis with rigid mode search.
Animating the rigid modes will display the unconstrained
degrees of freedom.  If the error still occurs, then the
issue could be caused by material properties or unattached
spring/mass idealizations.

我想知道上面红色这段话的方法.
模型就不上传了,我只想知道这种检错的方法

abcuy

模态分析
constrained Modal Analysis with rigid mode search.
问题解决
至于为什么出现insufficiently constrained 的问题希望高手指点

yrunze

已经写的很清楚了“The model is insufficiently constrained for the analysis.“约束不足，有刚体位移，试试增加约束