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[求助]
关于使用ansys做胀接接触分析不收敛的问题的求出 已有1人参与
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FINISH /CLEAR /FILENAME,3D /TITLE.,zhangjie /PREP7 ET,1,solid185 ET,2,TARGE169 ET,3,CONTA172 MP,EX,1,1.9E5 !换热管性能参数 MP,PRXY,1,0.3 TB,MISO,1 TBPT,,0.001,190 TBPT,,0.008,275 TBPT,,0.027,370 TBPT,,0.054,430 TBPT,,0.080,475 TBPT,,0.107,510 TBPT,,0.134,530 TBPT,,0.157,545 MP,MU,1,0.1 MP,EX,2,2.1E5 !母材性能参数 MP,PRXY,2,0.3 TB,MISO,2 TBPT,,0.0023,483 TBPT,,0.013,490 TBPT,,0.033,570 TBPT,,0.053,630 TBPT,,0.076,670 TBPT,,0.116,715 TBPT,,0.155,730 MP,MU,2,0.1 MP,EX,3,1.9E5 !堆焊层性能参数 MP,PRXY,3,0.3 TB,MISO,3 TBPT,,0.001,190 TBPT,,0.008,275 TBPT,,0.027,370 TBPT,,0.054,430 TBPT,,0.080,475 TBPT,,0.107,510 TBPT,,0.134,530 TBPT,,0.157,545 MP,MU,3,0.1 CYLIND,12,8.04,0,7,330,360, CYLIND,33,12,0,7,330,360, CYLIND,12,8.04,7,352,330,360, CYLIND,33,12,7,352,330,360, CYLIND,7.94,6.59,0,352,330,360, VGLU,1,2,3,4, NUMCMP,ALL LESIZE,5,,,10,,,,,1 LESIZE,7,,,10,,,,,1 LESIZE,6,,,4,,,,,1 LESIZE,8,,,4,,,,,1 LESIZE,10,,,7,,,,,1 MAT,3 VSWEEP,1 LESIZE,26,,,10,,,,,1 LESIZE,28,,,10,,,,,1 LESIZE,27,,,2,,,,,1 LESIZE,29,,,2,,,,,1 LESIZE,30,,,704,,,,,1 MAT,1 VSWEEP,2 LESIZE,17,,,10,,,,,1 LESIZE,19,,,10,,,,,1 LESIZE,18,,,4,,,,,1 LESIZE,20,,,4,,,,,1 LESIZE,36,,,345,,,,,1 MAT,3 VSWEEP,3 LESIZE,5,,,10,,,,,1 LESIZE,14,,,10,,,,,1 LESIZE,41,,,5,,,,,1 LESIZE,40,,,5,,,,,1 LESIZE,15,,,7,,,,,1 MAT,3 VSWEEP,4 LESIZE,17,,,10,,,,,1 LESIZE,21,,,10,,,,,1 LESIZE,44,,,5,,,,,1 LESIZE,45,,,5,,,,,1 LESIZE,43,,,345,,,,,1 MAT,2 VSWEEP,5 WPSTYLE,,,,,,,,0 NUMMRG,ALL NUMCMP,ALL ASEL,S,,,11, NSLA,R,1 CM,CONTACT_node,NODE ALLSEL,ALL ASEL,S,,,4 ASEL,A,,,17 NSLA,R,1 CM,TARGET_node,NODE ALLSEL,ALL MAT,2 R,3 REAL,3 ET,2,TARGE170 ET,3,CONTA174 KEYOPT,1,3,1 KEYOPT,3,5,3 !CONTACT设置icont adjustment为gap/penetration KEYOPT,3,9,0 !包含初始化穿透 KEYOPT,3,10,1 ! R,3,,,0.1,0.1,-0.1, RMORE, RMORE,,0 RMORE,0 NSEL,S,,,TARGET_node TYPE,2 ESLN,S,0 ESURF NSEL,S,,,CONTACT_node TYPE,3 ESLN,S,0 ESURF ALLSEL,ALL NSEL,S,LOC,Z,15,342 ASEL,S,,,12 NSLA,R,1 NSLA,R,1 CM,P_node,NODE ALLSEL,ALL /PSYMB,ESYS,1 /PNUM,TYPE,1 /NUM,1 WPCSYS,-1,0 WPSTYL,,,,,,,,0 FINISH /SOLU ASEL,S,LOC,Y,O DA,ALL,SYMM CSYS,1 ASEL,S,LOC,Y,330 DA,ALL,SYMM CSYS,O DA,1,UZ DA,8,UZ DA,19,UZ DA,24,UZ ANTYPE,0 NLGEOM,1 AUTOT，ON OUTRES,ERASE OUTRES,ALL,ALL NSUBST,10,10000,10 PRED,ON,,ON TIME,1 SFA,16,1,PRES,300 ALLSEL,ALL LSWRITE,1 TIME,2 !NSUBST,10 AUTOTS,1 SFA,16,1,PRES,120 ALLSEL,ALL LSWRITE,2 TIME,2 SFA,16,1,PRES,0 ALLSEL,ALL LSWRITE,3 ALLSEL,ALL LSSOLVE,1,1,1 SAVE,'ZHANGJIE1','db','F:\ANSYS DATA\' LSSOLVE,2,1,1 SAVE,'ZHANGJIE2','db','F:\ANSYS DATA\' LSSOLVE,3,1,1 SAVE,'ZHANGJIE3','db','F:\ANSYS DATA\' FINISH !/POST1 !plnsol,cont,pres,0,1 !esel,s,ename,,172 !plnsol,cont,pres,0,1 !allsel,below,elem !prnsol,cont 以上是我用ansys做管板与换热管胀接的接触分析命令流，调整了好多次接触参数，计算始终都不收敛，请问各位大神该如何解决啊？ 非常着急，谢谢了！！ |
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7楼2017-02-18 20:55:22
shgao20
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2楼2017-02-12 08:07:58
3楼2017-02-12 09:08:01
shgao20
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【答案】应助回帖
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试了你的命令流，确实第一步就不收敛。对你的命令流提了一点建议，见下面命令流中用 !*** 标注的地方。不过可能还需要更多的改进。 另外，你的原始模型是轴对称的吗？中为什么在侧面而不是内表面施加压力，你的胀接是如何产生的？对你的问题还不是很清楚，最好对你的具体问题做一个详细的介绍。 对你的命令流提了一点建议，见下面命令流中用 !*** 标注的地方。不过在了解详细情况后，可能还需要更多的改进。 ! [求助] 关于使用ansys做胀接接触分析不收敛的问题的求出 ! 初始金币 30 FINISH /CLEAR /FILENAME,3D, 1 /TITLE.,zhangjie /PREP7 ET,1,solid185 ET,2,TARGE169 ET,3,CONTA172 MP,EX,1,1.9E5 !换热管性能参数 MP,PRXY,1,0.3 TB,MISO,1 TBPT,,0.001,190 TBPT,,0.008,275 TBPT,,0.027,370 TBPT,,0.054,430 TBPT,,0.080,475 TBPT,,0.107,510 TBPT,,0.134,530 TBPT,,0.157,545 MP,MU,1,0.1 MP,EX,2,2.1E5 !母材性能参数 MP,PRXY,2,0.3 TB,MISO,2 TBPT,,0.0023,483 TBPT,,0.013,490 TBPT,,0.033,570 TBPT,,0.053,630 TBPT,,0.076,670 TBPT,,0.116,715 TBPT,,0.155,730 MP,MU,2,0.1 MP,EX,3,1.9E5 !堆焊层性能参数 MP,PRXY,3,0.3 TB,MISO,3 TBPT,,0.001,190 TBPT,,0.008,275 TBPT,,0.027,370 TBPT,,0.054,430 TBPT,,0.080,475 TBPT,,0.107,510 TBPT,,0.134,530 TBPT,,0.157,545 MP,MU,3,0.1 CYLIND,12,8.04,0,7,330,360, CYLIND,33,12,0,7,330,360, CYLIND,12,8.04,7,352,330,360, CYLIND,33,12,7,352,330,360, CYLIND,7.94,6.59,0,352,330,360, VGLU,1,2,3,4, NUMCMP,ALL LESIZE,5,,,10,,,,,1 LESIZE,7,,,10,,,,,1 LESIZE,6,,,4,,,,,1 LESIZE,8,,,4,,,,,1 LESIZE,10,,,7,,,,,1 MAT,3 VSWEEP,1 LESIZE,26,,,10,,,,,1 LESIZE,28,,,10,,,,,1 LESIZE,27,,,2,,,,,1 LESIZE,29,,,2,,,,,1 LESIZE,30,,,704,,,,,1 MAT,1 VSWEEP,2 LESIZE,17,,,10,,,,,1 LESIZE,19,,,10,,,,,1 LESIZE,18,,,4,,,,,1 LESIZE,20,,,4,,,,,1 LESIZE,36,,,345,,,,,1 MAT,3 VSWEEP,3 LESIZE,5,,,10,,,,,1 LESIZE,14,,,10,,,,,1 LESIZE,41,,,5,,,,,1 LESIZE,40,,,5,,,,,1 LESIZE,15,,,7,,,,,1 MAT,3 VSWEEP,4 LESIZE,17,,,10,,,,,1 LESIZE,21,,,10,,,,,1 LESIZE,44,,,5,,,,,1 LESIZE,45,,,5,,,,,1 LESIZE,43,,,345,,,,,1 MAT,2 VSWEEP,5 WPSTYLE,,,,,,,,0 NUMMRG,ALL NUMCMP,ALL ASEL,S,,,11, NSLA,R,1 CM,CONTACT_node,NODE ALLSEL,ALL ASEL,S,,,4 ASEL,A,,,17 NSLA,R,1 CM,TARGET_node,NODE ALLSEL,ALL MAT,2 R,3 REAL,3 ET,2,TARGE170 ET,3,CONTA174 KEYOPT,1,3,1 KEYOPT,3,5,3 !CONTACT设置icont adjustment为gap/penetration KEYOPT,3,9,0 !包含初始化穿透 KEYOPT,3,10,1 ! R,3,,,0.1,0.1,-0.1, !*** 可以把 第一个0.1 改为 0.01；第二个 0.1 改为 0.2；去掉 -0.1 试试 RMORE, RMORE,,0 RMORE,0 NSEL,S,,,TARGET_node TYPE,2 ESLN,S,0 ESURF NSEL,S,,,CONTACT_node TYPE,3 ESLN,S,0 ESURF ALLSEL,ALL NSEL,S,LOC,Z,15,342 ASEL,S,,,12 NSLA,R,1 NSLA,R,1 CM,P_node,NODE ALLSEL,ALL /PSYMB,ESYS,1 /PNUM,TYPE,1 /NUM,1 WPCSYS,-1,0 WPSTYL,,,,,,,,0 FINISH !* /SOLU ASEL,S,LOC,Y,O !*** O 应该改为 0 DA,ALL,SYMM !* CSYS,1 ASEL,S,LOC,Y,330 !*** 在 csys,1 中，y 是圆周角度，这个命令可能不起作用 DA,ALL,SYMM cm, a-y0, area !*** 增加此命令，可以检查选择的 areas 是否正确 !* CSYS,O !*** O 应该改为 0？ DA,1,UZ DA,8,UZ DA,19,UZ DA,24,UZ ANTYPE,0 NLGEOM,1 AUTOT，ON OUTRES,ERASE OUTRES,ALL,ALL NSUBST,10,10000,10 !*** 子步数太少，需要增加，比如 NSUBST,10000,1E8,10 PRED,ON,,ON TIME,1 SFA,16,1,PRES,300 ALLSEL,ALL ! LSWRITE,1 SOLVE TIME,2 !NSUBST,10 AUTOTS,1 SFA,16,1,PRES,120 ALLSEL,ALL ! LSWRITE,2 SOLVE TIME,3 SFA,16,1,PRES,0 ALLSEL,ALL ! LSWRITE,3 SOLVE |
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marsltp4楼2017-02-13 08:39:12
