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1、1、程序分析時(shí)報(bào)錯(cuò)可能的原因？輸出結(jié)果如下：>ENTRYLOAD_BLOCK>ENTRYASSM_STIFF_LOAD(FORMGLOBALEQUILIBRIUMEQUATIONSINBLOCKS)>Inclass[MultifrontalSolver]:FactorizationfailedinDSYTRFINCOMPLETEMULTI-FRONTALSOLVER>IERROR=-1>不正常的執(zhí)行中斷！1）問題分析：出現(xiàn)如上提示時(shí)，最常見的原因是模型中出現(xiàn)了不確定的剛體位移。在分析中必須對模型中所有的節(jié)點(diǎn)都定義足夠的約束條
2、件，以保證它們在各個(gè)平移和轉(zhuǎn)動自由度上都不會出現(xiàn)不確定的剛體位移。2）類試問題A-桁架單元不能受彎，而在模型中沒有約束它的轉(zhuǎn)動自由度，就出現(xiàn)了不確定位移值。B-施加接觸單元后因?yàn)榉指罟?jié)點(diǎn)，導(dǎo)致分割產(chǎn)生的節(jié)點(diǎn)沒有約束條件，也會出現(xiàn)不確定位移值。C-單元異常，例如單元過度變形D-應(yīng)力應(yīng)變關(guān)系中有負(fù)斜率2、程序計(jì)算不收斂可能的原因？輸出結(jié)果如下：X-COORDINATEOFC.G....:1.49753E+01MY-COORDINATEOFC.G....:1.50000E+01MZ-COORDINATEOFC.G....:1.12
3、137E+01MINCREMENTNO.:1ITERATIONNO.:1LOADFACTOR: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
4、.NORM:0.165E-01INCREMENTNO.:1ITERATIONNO.:5LOADFACTOR:0.100E+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+
5、01DISPL.NORM:0.353E+00INCREMENTNO.:1ITERATIONNO.:9LOADFACTOR:0.100E+01DISPL.NORM:0.847E-01INCREMENTNO.:1ITERATIONNO.:10LOADFACTOR:0.100E+01DISPL.NORM:0.133E+00INCREMENTNO.:1ITERATIONNO.:11LOADFACTOR:0.100E+01DISPL.NORM:0.715E-01INCREMENTNO.:1ITERATIONNO.:12LOADFACT
6、OR:0.100E+01DISPL.NORM:0.964E-01INCREMENTNO.:1ITERATIONNO.:13LOADFACTOR:0.100E+01DISPL.NORM:0.629E-01INCREMENTNO.:1ITERATIONNO.:14LOADFACTOR:0.100E+01DISPL.NORM:0.324E-01INCREMENTNO.:1ITERATIONNO.:15LOADFACTOR:0.100E+01DISPL.NORM:0.454E+01INCREMENTNO.:1ITERATIONNO.
7、:16LOADFACTOR:0.100E+01DISPL.NORM:0.385E+00INCREMENTNO.:1ITERATIONNO.:17LOADFACTOR:0.100E+01DISPL.NORM:0.164E+00INCREMENTNO.:1ITERATIONNO.:18LOADFACTOR:0.100E+01DISPL.NORM:0.111E+00INCREMENTNO.:1ITERATIONNO.:19LOADFACTOR:0.100E+01DISPL.NORM:0.512E+02INCREMENTNO.:1I
8、TERATIONNO.:20LOADFACTOR:0.100E+01DISPL.NORM:0.269E+00INCREMENTNO.:1ITERATIONNO.:21LOADFACTOR:0.100E+01DISPL.NORM:0.151E+00INCREMENTNO.:1ITERATIO
