我今天在做热分析,最后到了solve current LS这个步骤了,系统跳出如下的对话框:"The value of TEMP at node 8033 is 4.589265926E+14. It is greater than the current limit of 1000000.This generally indicates rigid body motion as a result of an unconstrained model. Verify that your model is properly constrained."我不知道应该如何解决。恳请各位不吝赐教。<BR><BR>