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[求助]
重金悬赏，做带质量块的压电悬臂梁的ansys仿真遇到一个问题 已有1人参与
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有没有做压电仿真的，最近做的一个模型，刚做到模态仿真就出现这种情况，得到结果如图所示，显示各阶谐振频率都为0，实在是不解，还望在这里大神帮忙看下。。。 CLEAR /TITLE,piezoelectric vibration energy harvester L1=40E-3 W1=10E-3 H1=1E-3 L2=40E-3 W2=10E-3 H2=1E-3 L3=15E-3 W3=10E-3 H3=0.5E-3 L=20E-3 PI=ACOS(-1) ACCELX=0 ACCELY=0 ACCELZ=-2.5 /PREP7 ET,1,SOLID5,3 ET,2,SOLID45 MP,DENS,1,7800 EMUNIT,EPZRO,80854E-12 MP,PERX,1029.3 MP,PERY,1029.3 MP,PERX,737.34 TB,ANEL,1 TBDATA,1,9.53E10,4.46E10,4.2E10 TBDATA,7,9.54E10,4.2E10 TBDATA,12,7.72E10 TBDATA,16,2.54E10 TBDATA,19,2E10 TBDATA,21,2E10 TB,PIEZ,1 TBDATA,3,-10.218 TBDATA,6,-10.218 TBDATA,9,14.149 TBDATA,14,11.68 TBDATA,16,11.68 MP,DENS,2,8470 MP,EX,2,1.1E11 MP,NUXY,2,0.33 MP,DENS,3,2700 MP,EX,3,6.9E10 MP,NUXY,3,0.33 BLOCK,0,L1,0,W1,0,H1 BLOCK,0,L3,0,W3,H1,H3+H1 WPOFF,L1,0,(H1+L)/2 BLOCK,0,L,0,W1,0,-L WPOFF,(L-H2)/2,0,0 BLOCK,0,H2,0,W2,0,L2 WPOFF,-(L-H2)/2,0,0 WPOFF,0,0,L2 BLOCK,0,L,0,W2,0,L WPCSYS,0 wpoff,L3,0,0 wprot,,,90 VSBW,ALL WPCSYS,-1,0 wpoff,L1 VSBW,ALL wpoff,,,H1 VSBW,ALL wpoff,9.5E-3,0,9.5E-3 wprot,,,90 VSBW,ALL wpoff,,,H1 VSBW,ALL WPCSYS,-1,0 VGLUE,ALL FLST,5,12,6,ORDE,7 FITEM,5,1 FITEM,5,3 FITEM,5,9 FITEM,5,11 FITEM,5,17 FITEM,5,20 FITEM,5,-26 CM,_Y,VOLU VSEL, , , ,P51X CM,_Y1,VOLU CMSEL,S,_Y !* CMSEL,S,_Y1 VATT, 3, , 2, 0 CMSEL,S,_Y CMDELE,_Y CMDELE,_Y1 !* CM,_Y,VOLU VSEL, , , , 16 CM,_Y1,VOLU CMSEL,S,_Y !* FLST,5,3,6,ORDE,3 FITEM,5,10 FITEM,5,14 FITEM,5,16 CM,_Y,VOLU VSEL, , , ,P51X CM,_Y1,VOLU CMSEL,S,_Y !* CMSEL,S,_Y1 VATT, 2, , 2, 0 CMSEL,S,_Y CMDELE,_Y CMDELE,_Y1 !* CM,_Y,VOLU VSEL, , , , 2 CM,_Y1,VOLU CMSEL,S,_Y !* CMSEL,S,_Y1 VATT, 1, , 1, 0 CMSEL,S,_Y CMDELE,_Y CMDELE,_Y1 !* ESIZE,0.001,0, MSHAPE,0,3D MSHKEY,1 !* FLST,5,16,6,ORDE,9 FITEM,5,1 FITEM,5,-3 FITEM,5,9 FITEM,5,-11 FITEM,5,14 FITEM,5,16 FITEM,5,-17 FITEM,5,20 FITEM,5,-26 CM,_Y,VOLU VSEL, , , ,P51X CM,_Y1,VOLU CHKMSH,'VOLU' CMSEL,S,_Y !* VMESH,_Y1 !* CMDELE,_Y CMDELE,_Y1 CMDELE,_Y2 NUMMRG,ALL NUMCMP,ALL NSEL,S,LOC,Z,H1 NSEL,R,LOC,X,0,L3 cp,1,volt,all *get,n_bot,node,0,num,min D,ALL,VOLT,0 NSEL,S,LOC,Z,H1+H3 NSEL,R,LOC,X,0,L3 cp,2,volt,all *get,n_top,node,0,num,min ALLSEL /solu antype,modal MODOPT,LANB,3 EQSLV,SPAR MXPAND,3, , ,0 LUMPM,0 PSTRES,0 MODOPT,LANB,3,0,1000, ,OFF nsel,s,loc,x,0 d,all,ux,0,,,,uy,uz d,n_top,volt,0 nsel, all Solve fini  VEWU_9{6}TYYNCPE33B4PBN.png  22JQII%L$QM54`~(M7N{TGD.png |
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3楼2017-04-07 09:00:45
liyaobo0509
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