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bluecmy新蟲 (小有名氣)
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[交流]
【求助】非線性分析得到的結(jié)果不收斂,怎么改進(jìn) 已有3人參與
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這里有兩個(gè)模型,(1)梁,(2)圓柱殼。 用梁得到的結(jié)果很好,采用相同的求解設(shè)置,圓柱殼的結(jié)果不收斂,最后得到的變形也不好不知道什么原因。以下是命令流。 (1) /prep7 !模型一 et,1,beam3 mp,ex,1,200000 mp,prxy,1,.3 r,1,100,833.333,10 k,1,0,0,0 k,2,0,100,0 l,1,2 esize,1 lmesh,all finish /solu antype,0 nlgeom,1 outres,all,all nsubst,20 neqit,1000 autots,on lnsrch,on dk,1,all,0 fk,2,fy,-50000 fk,2,fx,-250 solve finish (2) t=0.016 L=8 R=0.408 s=0.06 d=0.2 opint=1500000 *set,max_defect,0.0002 /PREP7 ET,1,SHELL93 ET,2,mass21 R,2,1e-6 R,1,t MP,EX,1,2e11 MP,PRXY,1,0.3 K,1,0,0,0 K,2,0,0,L LSTR, 1, 2 circle,1,R lsel,s,loc,z,0 ADRAG,all,0,0,0,,,1 ldele,1 aesize,all,s MSHAPE,0,2D MSHKEY,0 amesh,all et,3,184 !彎矩 keyopt,3,1,1 nsel,s,loc,z,L,L+1 n,opint ,0,0,L+d type,3 *get,nnum,node,0,count *get,ND,node,0,num,min *do,i,2,nnum E, opint,ND ND=NDNEXT(ND) *enddo allsel /solu !特征值 antype,0 nsel,s,,,opint f,all,mx,1 lsel,s,loc,z,0 dl,all,,ux dl,all,,uy dl,all,,uz allsel pstres,on solve finish /solu antype,1 bucopt,lanb,1 mxpand,1 solve finish /post1 !set,list set,first pldisp,0 *get,pressure1,mode,1,freq nsort,u,sum *get,max_disp_sum,sort,,max *set,scale_factor,max_defect/max_disp_sum finish /prep7 upgeom,scale_factor,last,last,'shell_mpc','rst','' /solu antype,0 nsel,s,,,opint f,all,mx,pressure1 !nlgeom,1 !nsubst,10,0,0 !arclen,1,4,0.001 !outres,all,all !arctrm,l !allsel !solve !finish allsel nlgeom,1 outres,all,all nsubst,20 neqit,1000 autots,on !lnsrch,on solve finish |
新蟲 (小有名氣)

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