模型分析错误求解 “insufficiently constrained”

scu_mvm

请问各位大侠，下面的错误是怎么回事，我试了多个模型都有这个问题。

The model is insufficiently constrained for the analysis. Please review the element connections,
properties, and constraints in highlighted entities. If this is a modal analysis, then you may be
able to obtain a solution by requesting additional modes.

Source: Solver

easylife0224

就是约束不足，有刚体位移了，好好检查一下单元之间是否连接正确（这个经常发生，如果几何处理不好的话），或看看施加的位移约束是否足够。

scu_mvm

谢谢，问题已经解决了，是原来的材料没有定义泊松比和杨氏模量