The volume of 13 elements is zero, small, or negative. Check coordinates or node numbering, or modify the mesh seed. In the case of a tetrahedron this error may indicate that all nodes are located very nearly in a plane. The elements have been identified in element set ErrElemVolSmallNegZero.
按照书本上的错误分析做了,还是没用,有人跟我说是单元体划分质量不好,让我更改单元体的大小,可以减少数目,但还是不能完全去除,而且无规律可循,网格划分大了影响分析结果。不知道有什么实用的方法吗?
|
|