ANSYS空間實體輪應(yīng)力分析

計算力學(xué)作業(yè)勻速轉(zhuǎn)動輪子的靜力學(xué)分析一．有限元計算（見視頻文件\yutao28.avi）二．有限元分析實例已知：角速度525rad/s彈性模量3e7psi泊松比0.3密度0.00073(bf*s^2/in^4)模型建立畫平面矩形三個布爾加畫倒角線線圍成倒角面四個利用關(guān)鍵點生成輪外緣圓弧線（如上圖）線圍成面取全部面布爾加二維平面生成完成（如下圖）通過面繞軸線旋轉(zhuǎn)拉伸成三維模型生成圓柱布爾減得到圓柱孔（如下圖）參數(shù)選擇單元類型選擇為20節(jié)點的186號單元材料彈性模量3e7psi泊松比0.3密度0.00073(bf*s^2/in^4)網(wǎng)格劃分由于中間薄板有孔，分兩塊來劃分網(wǎng)格，先移動轉(zhuǎn)動工作面，用工作面切分實體塊（如下圖）上下邊緣用六面體網(wǎng)格映射生成，中央薄板用四面體網(wǎng)格自由劃分（如下圖）在兩種不同劃分區(qū)域的交界處，為了降低求解規(guī)模，要轉(zhuǎn)變單元類型。由20節(jié)點186退化四面體單元轉(zhuǎn)換成10節(jié)點187四面體單元.顯示如下圖加約束和載荷，并求解兩剖面的約束為斜約束不能用UX,UY表示，只能通過對稱約束。（如下圖）為了防止剛性位移，在左下角節(jié)點加Y方向約束加Y方向角速度求解結(jié)果分析變形對比圖其有效應(yīng)力圖如下可以很明顯地看到孔沿周向的應(yīng)力集中。

VONMISESSTRESS

是根據(jù)材料失效理論計算的第四強度理論，是一個關(guān)于第1、2、3主應(yīng)力的公式。建立柱坐標(biāo)進(jìn)行周向擴(kuò)展瀏覽命令流/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/DI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