proe mechanica 模拟

这几天刚刚开始学习proe mechanica模拟，跟着视频做了几个例子总是遇到相同的问题，哪位大侠帮忙解决一下，谢谢啦！

点运行后显示failed

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

好像在说我加的约束不够，可我明明是跟着视频做的啊。困惑，在线等！

朋友帮忙找到原因了，是材料指定的问题，呵呵