ANSYS空间实体轮应力分析

计算力学作业匀速转动轮子的静力学分析一．有限元计算（见视频文件\yutao28.avi）二．有限元分析实例已知：角速度525rad/s弹性模量3e7psi泊松比0.3密度0.00073(bf*s^2/in^4)模型建立画平面矩形三个布尔加画倒角线线围成倒角面四个利用关键点生成轮外缘圆弧线（如上图）线围成面取全部面布尔加二维平面生成完成（如下图）通过面绕轴线旋转拉伸成三维模型生成圆柱布尔减得到圆柱孔（如下图）参数选择单元类型选择为20节点的186号单元材料弹性模量3e7psi泊松比0.3密度0.00073(bf*s^2/in^4)网格划分由于中间薄板有孔，分两块来划分网格，先移动转动工作面，用工作面切分实体块（如下图）上下边缘用六面体网格映射生成，中央薄板用四面体网格自由划分（如下图）在两种不同划分区域的交界处，为了降低求解规模，要转变单元类型。由20节点186退化四面体单元转换成10节点187四面体单元.显示如下图加约束和载荷，并求解两剖面的约束为斜约束不能用UX,UY表示，只能通过对称约束。（如下图）为了防止刚性位移，在左下角节点加Y方向约束加Y方向角速度求解结果分析变形对比图其有效应力图如下可以很明显地看到孔沿周向的应力集中。

VONMISESSTRESS

是根据材料失效理论计算的第四强度理论，是一个关于第1、2、3主应力的公式。建立柱坐标进行周向扩展浏览命令流/CLEAR,NOSTART/COM,ANSYSRELEASE13.0UP2010101220:41:3701/14/2013!*/REPLOT,RESIZE/FILNAME,yutao's,0/TITLE,yutao's/PREP7!*ET,1,SOLID186!*!*MPTEMP,,,,,,,,MPTEMP,1,0MPDATA,DENS,1,,0.00073MPTEMP,,,,,,,,MPTEMP,1,0MPDATA,EX,1,,30e6MPDATA,PRXY,1,,0.3RECTNG,1,1.5,0,5,RECTNG,3.25,3.75,0.5,3.75,RECTNG,1,3.75,1.75,2.5,FLST,2,3,5,ORDE,2FITEM,2,1FITEM,2,-3AOVLAP,P51X!*LFILLT,16,28,0.25,,!*LFILLT,28,23,0.25,,!*LFILLT,14,27,0.25,,!*LFILLT,27,19,0.25,,FLST,2,3,4FITEM,2,6FITEM,2,4FITEM,2,2AL,P51XFLST,2,3,4FITEM,2,9FITEM,2,8FITEM,2,11AL,P51XFLST,2,3,4FITEM,2,30FITEM,2,31FITEM,2,29AL,P51XFLST,2,3,4FITEM,2,32FITEM,2,34FITEM,2,33AL,P51XK,100,3.5,0.745,0,K,101,3.5,3.505,0,!*LARC,8,7,101,0.35,!*LARC,5,6,100,0.35,FLST,2,2,4FITEM,2,35FITEM,2,7AL,P51XFLST,2,2,4FITEM,2,5FITEM,2,36AL,P51XFLST,2,13,5,ORDE,2FITEM,2,1FITEM,2,-13AADD,P51XFLST,2,3,4,ORDE,3FITEM,2,12FITEM,2,-13FITEM,2,17LCOMB,P51X,,0FLST,2,3,4,ORDE,3FITEM,2,10FITEM,2,20FITEM,2,22LCOMB,P51X,,0SAVENUMSTR,STAT/PNUM,KP,0/PNUM,LINE,1/PNUM,AREA,0/PNUM,VOLU,0/PNUM,NODE,0/PNUM,TABN,0/PNUM,SVAL,0/NUMBER,0!*/PNUM,ELEM,0/REPLOT!*K,102,0,0,0,K,103,0,5,0,FLST,2,1,5,ORDE,1FITEM,2,14FLST,8,2,3FITEM,8,103FITEM,8,102VROTAT,P51X,,,,,,P51X,,22.5,1,/VIEW,1,1,1,1/ANG,1/REP,FAST/VIEW,1,1,2,3/ANG,1/REP,FASTwprot,0,-90WPSTYLE,,,,,,,,0CYL4,2.375,0,0.45,,,,2.6VSBV,1,2/VIEW,1,1,1,1/ANG,1/REP,FAST/VIEW,1,1,2,3/ANG,1/REP,FASTWPSTYLE,,,,,,,,1/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,1.08222638492,1/REP,FASTKWPAVE,17VSBW,3/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/VIEW,1,,,-1/ANG,1/REP,FAST/ANG,1,-30,YS,1/REP,FAST/ANG,1,30,YS,1/REP,FAST/ANG,1,30,XS,1/REP,FAST/ANG,1,30,ZS,1/REP,FAST/ANG,1,-30,ZS,1/REP,FAST/ANG,1,-30,XS,1/REP,FAST/ANG,1,-30,XS,1/REP,FAST/ANG,1,-30,YS,1/REP,FAST/ANG,1,30,YS,1/REP,FAST/ANG,1,30,YS,1/REP,FASTKWPAVE,21FLST,2,3,6,ORDE,3FITEM,2,1FITEM,2,-2FITEM,2,4VSBW,P51X/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/VIEW,1,1,2,3/ANG,1/REP,FASTWPSTYLE,,,,,,,,0LPLOTVPLOTESIZE,0.25,0,MSHAPE,0,3DMSHKEY,1!*FLST,5,4,6,ORDE,3FITEM,5,1FITEM,5,-3FITEM,5,5CM,_Y,VOLUVSEL,,,,P51XCM,_Y1,VOLUCHKMSH,'VOLU'CMSEL,S,_Y!*VMESH,_Y1!*CMDELE,_YCMDELE,_Y1CMDELE,_Y2!*MSHAPE,1,3DMSHKEY,0!*CM,_Y,VOLUVSEL,,,,6CM,_Y1,VOLUCHKMSH,'VOLU'CMSEL,S,_Y!*VMESH,_Y1!*CMDELE,_YCMDELE,_Y1CMDELE,_Y2!*/UI,MESH,OFF!*TCHG,186,187,0ESEL,S,ENAME,,solid186EPLOTALLSEL,ALLEPLOTESEL,S,ENAME,,solid187EPLOT/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/FOC,1,,0.3,,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,0.924021086472,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FASTSAVEFINISH/SOL!*ANTYPE,0!*ANTYPE,0/REPLOTALLSEL,ALL/REPLOT/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FASTFLST,2,5,5,ORDE,5FITEM,2,4FITEM,2,8FITEM,2,21FITEM,2,34FITEM,2,41FLST,2,5,5,ORDE,5FITEM,2,4FITEM,2,8FITEM,2,21FITEM,2,34FITEM,2,41DA,P51X,SYMMFLST,2,6,5,ORDE,6FITEM,2,12FITEM,2,14FITEM,2,20FITEM,2,27FITEM,2,39FITEM,2,-40DA,P51X,SYMMFLST,2,1,3,ORDE,1FITEM,2,29!*/GODK,P51X,,0,,0,UY,,,,,,OMEGA,0,525,0,SAVE/STATUS,SOLUSOLVEFINISH/POST1!*/EFACET,1PLNSOL,S,EQV,0,1.0CSYS,0WPAVE,0,0,0CSYS,0!*CSWPLA,11,1,1,1,/EXPAND,16,LPOLAR,HALF,,22.5,,,RECT,FULL,,,,,RECT,FULL,,,,/REPLOT!*/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DIST,1,1.08222638492,1/REP,FAST/DI