| 查看: 3037 | 回复: 1 | ||
[求助]
能给看看吗,ansys 算的模态分析频率总是零，，谢谢各位了
|
|
ansys 算的模态分析频率总是零 一下是命令流 FINISH /CLEAR /prep7 定义单元类型 ET,1,SOLID65 ET,2,SHELL63 ET,3,beam188 定义实常数 R,1,0.9 R,2,0.4 R,3,1 R,4,0.7 SECTYPE,1,BEAM,RECT,,0 SECDATA,0.8,1,0,0,0,0,0,0,0,0,0,0 SECTYPE,2,BEAM,RECT,,0 SECDATA,2,1.1,0,0,0,0,0,0,0,0,0,0 secoffset,user,-0.5 SECTYPE,3,BEAM,RECT,,0 SECDATA,1,0.9,0,0,0,0,0,0,0,0,0,0 secoffset,user,0.3 SECTYPE,4,BEAM,RECT,,0 SECDATA,1.8,1.0,0,0,0,0,0,0,0,0,0,0 secoffset,user,0.45 MP,EX,1,3.15E10 MP,NUXY,1,0.2 MP,DENS,1,2500 MP,EX,2,3.45E10 MP,NUXY,2,0.2 MP,DENS,2,2500 土体参数 MP,EX,3,12E6 MP,NUXY,3,0.30 MP,DENS,3,1600 TB,DP,3,,, TBDATA,3,28E3,18 建几何模型 AA=20.7 BB=6.05 QQ=7.5 CC=0.4 DD=0.7 EE=0.8 PP=1.0 FF=9.0 GG=0.9 HH=1.0 LL=36 MM=4.5 KK=62.1 NN=8.55 RR=20 K,1,(AA/2-DD/2),(BB-GG/2),, K,2,0,(BB-GG/2) K,3,-(AA/2-DD/2),(BB-GG/2),, K,4,-(AA/2-DD/2) k,5,0,0,0 K,6,(AA/2-DD/2) K,7,(AA/2-DD/2),-(QQ-HH/2),, k,8,0,-(QQ-HH/2) k,9,-(AA/2-DD/2),-(QQ-HH/2),, l,1,2 l,2,3 l,3,4 l,4,5 l,5,6 l,6,7 l,7,8 l,8,9 l,4,9 l,1,6 K,10,AA K,11,AA,,-LL L,10,11 ADRAG,1,2,3,9,8,7,11 ADRAG,6,10,,,,,11 ADRAG,4,5,,,,,11 LDELE,11,,,1 AGLUE,all NUMCMP,ALL K,19,0,0,-MM K,20,0,(BB-GG/2),-MM L,19,20 LGEN,4,30,,,,,-FF K,27,0,0,-MM K,28,0,-(QQ-HH/2),-MM L,27,28 LGEN,4,34,,,,,-FF 建立土模型 K,1801,(AA/2-DD/2) K,1802,KK/2 K,1803,KK/2,NN K,1804,(AA/2-DD/2),NN K,1805,,NN K,1806,,(BB-GG/2) K,1807,,(BB-GG/2),-LL K,1808,(AA/2-DD/2),(BB-GG/2) L,1804,1801 L,1801,1802 L,1802,1803 L,1803,1804 L,1805,1804 L,1804,1808 L,1808,1806 L,1806,1805 L,1806,1807 AL,38,39,40,41 AL,42,43,44,45 ASEL,S,,,11,12,1 CM,AA2,AREA VDRAG,AA2,,,,,,46 K,1809,KK/2,-RR K,1810,(AA/2-DD/2),-RR K,1811,,-RR K,1812,,-(QQ-HH/2) K,1813,,-(QQ-HH/2),-LL K,1814,(AA/2-DD/2),-(QQ-HH/2),, L,1810,1801 L,1802,1809 L,1809,1810 L,1811,1810 L,1810,1814 L,1814,1812 L,1812,1811 L,1812,1813 AL,39,62,63,64 AL,65,66,67,68 ASEL,S,,,23,24,1 CM,AA3,AREA VDRAG,AA3,,,,,,69 ALLSEL,ALL VSEL,S,,,1,4,1 CM,VV1,VOLU VSYMM,X,VV1 ALLSEL,ALL AOVLAP,ALL VGLUE,ALL NUMMRG,KP NUMCMP,ALL 划分网格 中柱 LSEL,S,,,30,33,1 CM,LL1,LINE LATT,2,,3,,,,1 LESIZE,LL1,,,6 LMESH,ALL LSEL,ALL LSEL,S,,,34,37,1 CM,LA1,LINE LATT,2,,3,,,,1 LESIZE,LA1,,,7 LMESH,ALL 梁 LSEL,ALL LSEL,S,,,22 LATT,1,,3,,,,2 LESIZE,22,,,36 LMESH,ALL LSEL,ALL LSEL,S,,,26 LATT,1,,3,,,,3 LESIZE,26,,,36 LMESH,ALL LSEL,ALL LSEL,S,,,14 LATT,1,,3,,,,4 LESIZE,14,,,36 LMESH,ALL 顶板 LSEL,ALL LSEL,S,,,13,16,3 CM,LL2,LINE LESIZE,LL2,,,36 LSEL,ALL LSEL,S,,,1,2,1 LSEL,A,,,12,15,3 CM,LL3,LINE LESIZE,LL3,,,10 ASEL,ALL ASEL,S,,,1,2,1 CM,AAA1,AREA AATT,1,1,2 AMESH,AAA1 中板 LSEL,ALL LSEL,S,,,18,25,7 CM,LL4,LINE LESIZE,LL4,,,36 LSEL,ALL LSEL,S,,,4,5,1 LSEL,A,,,11,27,16 CM,LL5,LINE LESIZE,LL5,,,10 ASEL,ALL ASEL,S,,,7,8,1 CM,AAA2,AREA AATT,1,2,2 AMESH,AAA2 底板 LSEL,ALL LSEL,S,,,20,24,4 CM,LL6,LINE LESIZE,LL6,,,36 LSEL,ALL LSEL,S,,,7,8,1 LSEL,A,,,21,23,2 CM,LL7,LINE LESIZE,LL7,,,10 ASEL,ALL ASEL,S,,,5,6,1 CM,AAA3,AREA AATT,1,3,2 AMESH,AAA3 侧板 LSEL,ALL LSEL,S,,,3,10,7 LSEL,A,,,17,29,12 CM,LL8,LINE LESIZE,LL8,,,6 LSEL,ALL LSEL,S,,,6,9,3 LSEL,A,,,19,28,9 CM,LA2,LINE LESIZE,LA2,,,7 ASEL,ALL ASEL,S,,,3,4,1 ASEL,A,,,9,10,1 CM,AAA4,AREA AATT,1,4,2 AMESH,AAA4 划分体单元 ALLSEL,ALL SMRT,1 VSEL,S,,,1,8,1 CM,VV3,VOLU VATT,3,,1 VSWEEP,VV3 NUMMRG,ALL NUMCMP,ALL FINISH /ESHAPE,1 EPLOT 施加约束及重力荷载 /SOLU NSEL,ALL ACEL,0,9.8,0, ASEL,S,,,20,21,1 ASEL,A,,,29,37,8 DA,ALL,UY ASEL,S,,,13,26,13 ASEL,A,,,35,38,3 DA,ALL,UX ASEL,S,,,18,19,1 ASEL,A,,,31,33,1 ASEL,A,,,24,34,10 ASEL,A,,,11 DA,ALL,UZ FINISH allsel /solu antype,modal modopt,lanb,5,0,0,,off mxpand,5,,,yes outpr,basic,all outres,all,all allsel solve |
回复此楼» 猜你喜欢
面上合作单位盖章
已经有9人回复
-
面上函评意见出来了，像什么等级？
已经有17人回复
-
为什么国自然不能直接公布
已经有5人回复
-
梦想
已经有7人回复
-
学科评审组评审是指会评吗？
已经有4人回复
-
为什么资助数各大高校都创新高，自己申请怎么就这么难
已经有14人回复
-
小白求助 投论文要求的highlights应该如何写
已经有4人回复
-
麻烦专家们看看评委们的意见（F口面上）
已经有12人回复
-
怎么看青基中了没有啊
已经有6人回复
-
国社科又开始会评了，不知道这次命运如何
已经有11人回复
ZK2194184
铁杆木虫 (正式写手)
- 应助: 6 (幼儿园)
- 金币: 8776.9
- 散金: 10
- 红花: 9
- 帖子: 851
- 在线: 132.2小时
- 虫号: 2835273
- 注册: 2013-11-29
- 性别: GG
- 专业: 水工结构和材料及施工
2楼2016-03-21 00:03:24
30