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天之叶

新虫 (初入文坛)

[求助] ANSYS非线性求解求助---螺栓预紧加接触问题

用非线性PCG求解器提示“During this loadstep the PCG iterative solver took more than 1000  iterations to solve the system of equations. In the future it may be
more efficient to choose a direct solver, such as the SPARSE solver, for this analysis.” ; 而采用前面提示的SPARSE solver则出现“Preconditioned conjugate gradient solver error level 1. Possibly, the  model is unconstrained or additional iterations may be needed. Try  running setting the multiplier MULT on the EQSLV command to greater
than 1.0 (but less than 3.0). ”
     诚请各位了解的给点指点呀,先谢了啊 、、、、、、
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夕阳雨

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【答案】应助回帖


感谢参与,应助指数 +1
臭水沟: 金币+1, 谢谢交流~ 2013-10-18 20:30:18
只是提示你已经采用SPARSE solver了,设置一下求解选项,采用EQSLV命令或用GUI操作应该能解决这个问题
学无止境
2楼2013-10-18 16:31:58
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