欢迎来到天天文库
浏览记录
ID:14533630
大小:30.50 KB
页数:2页
时间:2018-07-29
《midas计算不收敛报错原因和解决方法》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、1、程序分析时报错可能的原因?输出结果如下:>ENTRYLOAD_BLOCK>ENTRYASSM_STIFF_LOAD(FORMGLOBALEQUILIBRIUMEQUATIONSINBLOCKS)>Inclass[MultifrontalSolver]:FactorizationfailedinDSYTRFINCOMPLETEMULTI-FRONTALSOLVER>IERROR=-1>不正常的执行中断!1)问题分析:出现如上提示时,最常见的原因是模型中出现了不确定的刚体位移。在分析中必须对模型中所有的节点都定义足够的约束条件,以保证它们在各个平移和转动自由度上都
2、不会出现不确定的刚体位移。2)类试问题A-桁架单元不能受弯,而在模型中没有约束它的转动自由度,就出现了不确定位移值。B-施加接触单元后因为分割节点,导致分割产生的节点没有约束条件,也会出现不确定位移值。C-单元异常,例如单元过度变形D-应力应变关系中有负斜率2、程序计算不收敛可能的原因?输出结果如下:X-COORDINATEOFC.G....:1.49753E+01MY-COORDINATEOFC.G....:1.50000E+01MZ-COORDINATEOFC.G....:1.12137E+01MINCREMENTNO.:1ITERATIONNO.:1LOAD
3、FACTOR:0.100E+01DISPL.NORM:0.478E-02INCREMENTNO.:1ITERATIONNO.:2LOADFACTOR:0.100E+01DISPL.NORM:0.516E-02INCREMENTNO.:1ITERATIONNO.:3LOADFACTOR:0.100E+01DISPL.NORM:0.249E-01INCREMENTNO.:1ITERATIONNO.:4LOADFACTOR:0.100E+01DISPL.NORM:0.165E-01INCREMENTNO.:1ITERATIONNO.:5LOADFACTOR:0.100E
4、+01DISPL.NORM:0.953E-02INCREMENTNO.:1ITERATIONNO.:6LOADFACTOR:0.100E+01DISPL.NORM:0.318E+02INCREMENTNO.:1ITERATIONNO.:7LOADFACTOR:0.100E+01DISPL.NORM:0.300E+00INCREMENTNO.:1ITERATIONNO.:8LOADFACTOR:0.100E+01DISPL.NORM:0.353E+00INCREMENTNO.:1ITERATIONNO.:9LOADFACTOR:0.100E+01DISPL.NORM
5、:0.847E-01INCREMENTNO.:1ITERATIONNO.:10LOADFACTOR:0.100E+01DISPL.NORM:0.133E+00INCREMENTNO.:1ITERATIONNO.:11LOADFACTOR:0.100E+01DISPL.NORM:0.715E-01INCREMENTNO.:1ITERATIONNO.:12LOADFACTOR:0.100E+01DISPL.NORM:0.964E-01INCREMENTNO.:1ITERATIONNO.:13LOADFACTOR:0.100E+01DISPL.NORM:0.629E-0
6、1INCREMENTNO.:1ITERATIONNO.:14LOADFACTOR:0.100E+01DISPL.NORM:0.324E-01INCREMENTNO.:1ITERATIONNO.:15LOADFACTOR:0.100E+01DISPL.NORM:0.454E+01INCREMENTNO.:1ITERATIONNO.:16LOADFACTOR:0.100E+01DISPL.NORM:0.385E+00INCREMENTNO.:1ITERATIONNO.:17LOADFACTOR:0.100E+01DISPL.NORM:0.164E+00INCREMEN
7、TNO.:1ITERATIONNO.:18LOADFACTOR:0.100E+01DISPL.NORM:0.111E+00INCREMENTNO.:1ITERATIONNO.:19LOADFACTOR:0.100E+01DISPL.NORM:0.512E+02INCREMENTNO.:1ITERATIONNO.:20LOADFACTOR:0.100E+01DISPL.NORM:0.269E+00INCREMENTNO.:1ITERATIONNO.:21LOADFACTOR:0.100E+01DISPL.NORM:0.151E+00INCREMENTNO.:1ITE
8、RATIO
此文档下载收益归作者所有