| 查看: 1640 | 回复: 8 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
121100220捐助贵宾 (初入文坛)
|
[求助]
ANSYS 生死单元加载时间问题 已有1人参与
|
|
|
求助论坛大神，小弟最近在做增材制造温度场的仿真，用到ANSYS生死单元功能，在运行过程中遇到一个关于加载时间的问题。主要问题就是在执行*DO循环时一直报错“present time is equal or less than previous time”。自己实在找不到问题在哪，恳请论坛大神出手相助，帮忙看一下问题出在哪，小弟不胜感激。APDL代码如下: /CONFIG,NRES,40000 LTH_MD=0.06 ！模具长度 LTH_E=0.001 ！单元长度 NA=6 ！层数 THICC=0.000125 ！单层厚 THICK=0.01 ！模具厚度 THICA=THICC*NA ！铺层厚度 T_I=0.5 ！ 时间步 YXRZ=16 ！有效热载长度 DERTAX=5 ！铺放步 hflux_cons=88541 ！热流密度 /PREP7 ET,1,13,4 ET,1,13,4 ！-----------------------------材料热参数--------------------------------- MPTEMP,1,0,50,100,150,200,250$MPTEMP,7,300,350,400,600 MPDATA,DENS,1,1,1601,1598,1593,1586,1575,1563 MPDATA,DENS,1,7,1551,1537,1524,1472 MPDATA,C,1,1,800,930,1040,1260,1300,1400 MPDATA,C,1,7,1550,1650,1700,1900 MPDATA,KXX,1,1,3.5,4.6,5.1,5.9,5.9,6.1 MPDATA,KXX,1,7,6.7,6.8,7,7.8 MPDATA,KYY,1,1,0.42,0.52,0.6,0.7,0.7,0.7 MPDATA,KYY,1,7,0.75,0.68,0.65,0.53 MPTEMP,1,0,50,100,150,200,250,$MPTEMP,7,300,330,343,350,400,600 MPDATA,EX,1,1,128e9,128e9,128e9,128e9,128e9,128e9 MPDATA,EX,1,7,128e9,128e9,128e9,128e9,128e9,128e9 MPDATA,EY,1,1,11E9,11E9,11E9,11E9,11E9,11E9 MPDATA,EY,1,7,11E9,11E9,1E-6,1E-6,1E-6,1E-6 MPDATA,EZ,1,1,11E9,11E9,11E9,11E9,11E9,11E9 MPDATA,EZ,1,7,11E9,11E9,11E9,11E9,11E9,11E9 MPDATA,NUXY,1,1,0.28,0.28,0.28,0.28,0.28,0.28 MPDATA,NUXY,1,7,0.28,0.28,1E-9,1E-9,1E-9,1E-9,1E-9 MPDATA,NUXZ,1,1,1E-9,1E-9,1E-9,1E-9,1E-9,1E-9 MPDATA,NUXZ,1,7,1E-9,1E-9,1E-9,1E-9,1E-9,1E-9 MPDATA,NUYZ,1,1,1E-9,1E-9,1E-9,1E-9,1E-9,1E-9 MPDATA,NUYZ,1,7,1E-9,1E-9,1E-9,1E-9,1E-9,1E-9 MPDATA,GXY,1,1,5.1E9,5.1E9,5.1E9,5.1E9,5.1E9,5.1E9 MPDATA,GXY,1,7,5.1E9,5.1E9,5.1E9,5.1E9,5.1E9,5.1E9 MPTEMP,1,0,50,100,140,143,250 MPTEMP,7,300,330,343,350,400,600 MPDATA,ALPX,1,1,0.6E-6,0.6E-6,0.6E-6,0.6E-6,0.6E-6,0.6E-6 MPDATA,ALPX,1,7,0.6E-6,0.6E-6,0.6E-6,0.6E-6,0.6E-6,0.6E-6 MPDATA,ALPY,1,1,34.3E-6,34.3E-6,34.3E-6,34.3E-6,66.0E-6,66.0E-6 MPDATA,ALPY,1,7,66.0E-6,66.0E-6,1E-30,1E-30,1E-30,1E-30 MPTEMP,1,0,50,100,150,200,250 MPTEMP,7,300,330,343,350,400,600 MPDATA,ENTH,1,1,0.00E+00,7.43E+07,1.57E+08,2.57E+08,3.59E+08,4.69E+08 MPDATA,ENTH,1,7,5.89E+08,6.63E+08,7.31E+08,7.48E+08,8.78E+08,1.44E+09 MP,EX,2.73E9 MP,NUXY,2,0.3 MP,ALPX,2,23E-6 MP,KXX,2,237 MP,C,2,905 MP,DENS,2,2700 ！---------------几何模型-------------------------- BLC4,0,THICK,LTH_MD,THICA BLC4,0,0,LTH_MD,0.01 AGLUE,ALL ！---------------------------划分网格------------------------- LSEL,S,LINE,,1,5,2 LESIZE,ALL,,,60,,,,,1 LSEL,S,LINE,,2,4,2 LESIZE,ALL,,,6,,,,,1 LSEL,S,LINE,,9,10,1 LESIZE,ALL,,,10,5,,,,1 ASEL,S,AREA,,1 AATT,1,,1,0 MAT,1 AMESH,ALL ASEL,S,AREA,,3 AATT,2,,1,0 MAT,2 AMESH,ALL$FINISH ！----------------------加载------------------------------------- /sol ANTYPE,TRANS AUTOTS,1 TINTP,0.005,,,1,,, LNSRCH,1 TRNOPT,FULL TIMINT,ON TUNIF,20 NROPT,FULL ESEL,S,ELEM,,1,(LTH_MD/LTH_E)*NA,1 EKILL,ALL NSLE,S D,ALL,,20,,,,TEMP TIME,T_I NSUBST,10 LSEL,S,LINE,,5 SFL,ALL,CONV,13,,25 LSEL,S,LINE,,9,10,1 SFL,ALL,CONV,13,,25 ESEL,S,ELEM,,1,DERTAX,1 EALIVE,ALL NSLE,S DDELE,ALL SFE,ALL,,CONV,2,hflux_cons ALLSEL EQSLV,ICCG SOLVE FINISH /sol ANTYPE,,REST T=T_I*2 TIME,T NSUBST,10 AUTOTS,1 TINTP,0.005,,,1,,, LNSRCH,1 ESEL,S,ELEM,,1,DERTAX*2,1 EALIVE,ALL NSLE,S DDELE,ALL SFE,ALL,,CONV,2,hflux_cons ALLSEL OUTRES,ALL,ALL EQSLV,ICCG SOLVE T=T+T_I FINISH /sol ANTYPE,,REST *DO,I,YXRZ+DERTAX,(LTH_MD/LTH_E),DERTAX TIME,T NSUBST,10 AUTOTS,1 TINTP,0.005,,,1,,, LNSRCH,1 ESEL,S,ELEM,,I-DERTAX+1,I,1 EALIVE,ALL NSLE,S DDELE,ALL SFE,ALL,,CONV,2,hflux_cons ESEL,S,ELEM,,I-(YXRZ+DERTAX)+1,I-YXRZ,1 SFE,ALL,,CONV,,13 SFE,ALL,,CONV,2,25 ALLSEL OUTRES,ALL,ALL EQSLV,ICCG SOLVE T=T+T_I *ENDDO FINISH@wuming524 |
回复此楼» 猜你喜欢
085600 材料与化工 295 求调剂
已经有11人回复
-
NSFC申报书里申请人简历中代表性论著还需要在申报书最后的附件里面再上传一遍吗
已经有11人回复
-
纺织、生物、化学、材料相关专业招生了
已经有6人回复
-
材料与化工085600调剂求老师收留
已经有7人回复
-
面上和青基一样限30页不合理
已经有5人回复
-
308 085701 四六级已过求调剂
已经有3人回复
-
一志愿河海大学085900土木水利专硕279求调剂不挑专业
已经有5人回复
-
290求调剂
已经有8人回复
-
伙伴们，祝我生日快乐吧
已经有9人回复
-
281求调剂
已经有3人回复
» 本主题相关商家推荐: (我也要在这里推广)
121100220
捐助贵宾 (初入文坛)
- 应助: 0 (幼儿园)
- 金币: 83.2
- 帖子: 9
- 在线: 3.1小时
- 虫号: 15855106
- 注册: 2019-08-06
- 专业: 高分子材料的加工与成型
3楼2020-05-13 10:36:42
2楼2020-05-12 21:52:27
121100220
捐助贵宾 (初入文坛)
- 应助: 0 (幼儿园)
- 金币: 83.2
- 帖子: 9
- 在线: 3.1小时
- 虫号: 15855106
- 注册: 2019-08-06
- 专业: 高分子材料的加工与成型
4楼2020-05-13 10:37:26
5楼2020-05-13 11:13:51
