ansys 变截面梁的定义（ ZZ）ansys 专区 2010-02-04 09:23:22 阅读 198 评论 0 字号：大中小 （例 1：转自 http:/www.chinavib.com/forum/viewthread.php?tid=31432&highlight=%B1%E4%BD%D8%C3%E6）变截面梁的定义定义变截面梁之前需定义两个截面： SECTYPE，1，BEAM，HREC，0 ！空芯矩形截面 1 SECDATA,10,20,2,2,2,2,0,0,0,0 ！截面 1 尺寸定义 SECTYPE，2，BEAM，HREC，0 ！空芯矩形截面 2 SECDATA,8,10,2,2,2,2,0,0,0,0 ！截面 2 尺寸定义 ！定义两个截面后,再定义变截面 SECTYPE,3,TAPER, ！变截面 3 SECDATA,1, SECDATA,2,10 ！截面由 1 变到 2,位置由(0,0,0)变到(10,0,0,)（例 2：转自 http:/www.luxinzheng.net/download/ANSYS_BEAM54.html） finish/clear /PREP7 A_HYT1=0.4 !A 端A_HYB1=0.1 !A 端B_HYT1=0.2 !B 端B_HYB1=0.1 !B 端OFFSET=0.5 !偏移!* ET,1,BEAM54 !* !* *SET,_RC_SET,1, R,_RC_SET,0.08,0.0010666666666667,A_HYT1,A_HYB1,RMODIF,_RC_SET,9,0,-OFFSET,RMODIF,_RC_SET,14,0,RMODIF,_RC_SET,5,0.2*0.2,0.2*0.2*3/12,B_HYT1,B_HYB1, RMODIF,_RC_SET,11,0,-OFFSET, RMODIF,_RC_SET,15,0,RMODIF,_RC_SET,13,0,RMODIF,_RC_SET,16,0, , ,!* *SET,_RC_SET,2,R,_RC_SET,0.08,0.0010666666666667,A_HYB1,A_HYT1,RMODIF,_RC_SET,9,0,OFFSET,RMODIF,_RC_SET,14,0,RMODIF,_RC_SET,5,0.2*0.2,0.2*0.2*3/12,B_HYB1,B_HYT1, RMODIF,_RC_SET,11,0,OFFSET, RMODIF,_RC_SET,15,0,RMODIF,_RC_SET,13,0,RMODIF,_RC_SET,16,0, , ,!* !* MPTEMP, MPTEMP,1,0 MPDATA,EX,1,200e3 MPDATA,PRXY,1,.2 N,1,0, N,2,5, N,3,10,TYPE, 1 MAT, 1REAL, 1 !* e,1,2 REAL, 2 e,3,2 /eshap,1EPLOT（例 3：转自 http:/forum.simwe.com/archiver/tid-64381.html）VM34 是个变截面梁的例子，分别用 SHELL63 和 BEAM44 做的。 其中 BEAM44 的实常数是这样设置的： ET,1,BEAM44 *DO,I,1,10 ! CREATE DO LOOP FOR REAL CONSTANTS R,I, 1,1,.003125*(I-1),.25,1 RMORE,1,1,.003125* I ,.25,1 *ENDDO 实常数的定义为： Real Constants Constants 1-24 (basic set): AREA1, IZ1, IY1, TKZB1, TKYB1, IX1, AREA2, IZ2, IY2, TKZB2, TKYB2, IX2, DX1, DY1, DZ1, DX2, DY2, DZ2, SHEARZ, SHEARY, TKZT1, TKYT1, TKZT2, TKYT2 （例 4：转自 http:/forum.simwe.com/archiver/tid-64381.html）用 beam188or189 可以保证截面的连续性，下面是一个变截面桥墩 fini /clear /filname,pounding /prep7 /title,pounding et,1,82 et,2,44 et,3,188 mp,ex,2,3.45E10 mp,prxy,2,0.1667 mp,dens,2,2500 mp,ex,3,3.0e10 mp,prxy,3,0.1667 mp,dens,3,2500 ! !建立桥墩 !1 号桥墩位置 k,100,0,-15.1,32.65 k,101,0,-7.1,32.65 k,102,0,-6,32.65 k,103,0,-5.0,32.65 k,104,0,-3.9,32.65 k,105,0,-3.2,32.65 k,106,0,-15.1,35 !参考点 lstr,100,101 *do,i,101,104 lstr,i,i+1 *enddo sectype,10,beam,rect secdata,5.667,2.0 sectype,11,beam,rect secdata,5.0,2.0 sectype,12,beam,rect secdata,5.47.4,2.311 sectype,13,beam,rect secdata,6.478,2.889 sectype,14,beam,rect secdata,7.0,3.2 sectype,15,taper secdata,10,0.0,-15.1,32.65 secdata,11,0.0,-7.1,32.65 sectype,16,taper secdata,11,0.0,-7.1,32.65 secdata,12,0.0,-6,32.65 sectype,17,taper secdata,12,0.0,-6.0,32.65 secdata,13,0.0,-5.0,32.65 sectype,18,taper secdata,13,0.0,-5.0,32.65 secdata,14,0.0,-3.9,32.65 sectype,19,taper secdata,14,0.0,-3.9,32.65 secdata,14,0.0,-3.2,32.65 !划分网格 *do,i,1,5,1 lsel,s,i latt,3,15+(i-1),3,106,106,15+(i-1) lesize,all,2.0 lmesh,i *enddo /eshape,1.0 eplot