【文章內(nèi)容簡介】 ! (13) *DIM,LABEL,CHAR,3,2*DIM,VALUE_C1,3,3*DIM,VALUE_C2,3,3LABEL(1,1) = 39。UZ MAX 39。,39。SLOPE 39。,39。MOMENT M39。LABEL(1,2) = 39。(m) 39。,39。(rad) 39。,39。AX Nm39。*VFILL,VALUE_C1(1,1),DATA,.00321,*VFILL,VALUE_C1(1,2),DATA,UZ_MX_C1,SLOPE_C1,M_MX_C1*VFILL,VALUE_C1(1,3),DATA,ABS(UZ_MX_C1/),ABS(SLOPE_C1/.00321), ABS(M_MX_C1/)*VFILL,VALUE_C2(1,1),DATA,.006028,1013*VFILL,VALUE_C2(1,2),DATA,UZ_MX_C2,SLOPE_C2,M_MX_C2*VFILL,VALUE_C2(1,3),DATA,ABS(UZ_MX_C2/),ABS(SLOPE_C2/.006028), ABS(M_MX_C2/1013)/COM/OUT, EX2_3, out/COM, RESULTS COMPARISON /COM,/COM, | TARGET | ANSYS | RATIO/COM,/COM,RESULTS FOR F0 (STIFFENED):/COM,*VWRITE,LABEL(1,1),LABEL(1,2),VALUE_C1(1,1),VALUE_C1(1,2),VALUE_C1(1,3)(1X,A8,A8,39。 39。,39。 39。,39。 39。,)/COM,/COM,RESULTS FOR F=0 (UNSTIFFENED):/COM,*VWRITE,LABEL(1,1),LABEL(1,2),VALUE_C2(1,1),VALUE_C2(1,2),VALUE_C2(1,3)(1X,A8,A8,39。 39。,39。 39。,39。 39。,)/COM,/OUTFINISH*LIST, EX2_3, out ! 懸臂梁的雙向彎曲! 本程序來源于邢靜忠等編著的《ANSYS分析實例與工程應(yīng)用》，機(jī)械工業(yè)出版社（2004年）Finish/CLEAR, START/FileName,/PREP7/TITLE, (1), STRAIGHT CANTILEVER BEAM BY SOLID5 ELEMENT.! (1) 利用SOLID5單元計算懸臂梁的組合變形C*** USING SOLID5 HEXAHEDRONSANTYPE,STATICET,1,SOLID5,2MP,EX,1,69E3MP,NUXY,1,! (2) 定義懸臂梁上的8個的關(guān)鍵點K,1K,2,! 用關(guān)鍵點生成命令KGEN, ITIME, NP1, NP2, NINC, DX, DY, DZ, KINC 生成其它關(guān)鍵點KGEN,2,1,2,1,KGEN,2,1,4,1,! 上面兩行命令完成了節(jié)點3到4的定義和節(jié)點5到8的位置定義! (3) 定義一條邊線，制定這條線劃分單元的個數(shù)和一般單元的尺寸L,1,2smrt,offLESIZE,ALL,10ESIZE,V,1,2,4,3,5,6,8,7VMESH,1! (4) 選擇左側(cè)截面處的所有節(jié)點，并固定這些節(jié)點。在右側(cè)的所有節(jié)點上施加集中力NSEL,S,LOC,X,0D,ALL,ALLNSEL,ALLFK,2,FX,*REPEAT,4,2NOORDERFINISH! (5) 求解在自由端拉力作用下懸臂梁的變形，主要是拉壓變形/SOLUSOLVE! (6) 改變荷載，計算在Y方向的集中力作用下的情形FKDELE,ALL,FXFK,2,FY,*REPEAT,4,2SOLVE! (7) 改變荷載，計算在Z方向的集中力作用下的情形FKDELE,ALL,FYFK,2,FZ,*REPEAT,4,2SOLVEFINISH! (8) 進(jìn)入一般后處理模塊/POST1CSYS,0! (9) 定義宏程序，完成自由端位移計算結(jié)果的處理*CREATE,MACSET,ARG1,1LCDEF,ARG1,ARG1NSEL,S,LOC,X,PRNSOL,U,COMPLCFACT,ARG1,ARG2LCASE,ARG1PRNSOL,U,COMP*END! (10) 使用上面定義的宏程序處理所有的3個工況/COM ****USE,MAC,1,(1/)SET,1,1LCSEL,S,0,0N1=NODE( , 0, 0)*GET,UX1,NODE,N1,U,X! (11) 處理第2個荷載步的計算結(jié)果*USE,MAC,2,(1/)SET,2,1LCSEL,S,0,0*GET,UY1,NODE,N1,U,Y! (12) 處理第3個荷載步的計算結(jié)果*USE,MAC,3,(1/)SET,3,1LCSEL,S,0,0*GET,UZ1,NODE,N1,U,Z! (13) 定義字符串變量和相應(yīng)的理論計算結(jié)果*DIM,LABEL,CHAR,3,2*DIM,VALUE,3,3LABEL(1,1) = 39。DEFL X 39。,39。DEFL Y 39。,39。DEFL Z 39。LABEL(1,2) = 39。mm39。,39。mm39。,39。mm39。*VFILL,VALUE(1,1),DATA,*VFILL,VALUE(1,2),DATA,UX1,UY1,UZ1*VFILL,VALUE(1,3),DATA,ABS(UX1/()),ABS(UY1/),ABS(UZ1/)SAVE, TABLE_1FINISH!! (14) 改變單元類型，重新分析矩形截面懸臂梁在端部集中力作用下的變形/CLEAR, NOSTART/PREP7/TITLE, (2), STRAIGHT CANTILEVER BEAM by SOLID92 ELEMENT.smrt,offMOPT,VMESH,MAINMOPT,AMESH,ALTE! (15) 使用10節(jié)點四面體單元SOLID92ANTYPE,STATICET,1,SOLID92MP,EX,1,69E3MP,PRXY,1,K,1K,2,KGEN,2,1,2,1,KGEN,2,1,4,1,ESIZE,V,1,2,4,3,5,6,8,7VMESH,1! (16) 利用第1塊體的單元模式，生成其余的8部分單元，定義固定端部的約束VGEN,9,1,1,1,4NSEL,S,LOC,X,0D,ALL,ALLSAVE! (17) 獲取相應(yīng)節(jié)點的編號，并在這些節(jié)點上施加荷載/COM *** GET NODE NUMBERS FOR LOAD APPLICATION ***NSEL,S,LOC,X,NSEL,R,LOC,Y,NSEL,R,LOC,Z,*GET,MIDD,NDMXNSEL,S,LOC,X,NSEL,R,LOC,Y,NSEL,R,LOC,Z,*GET,TOPP,NDMXNSEL,S,LOC,X,NSEL,R,LOC,Y,NSEL,R,LOC,Z, *GET,BOTT,NDMXNSEL,S,LOC,X, NSEL,R,LOC,Y, NSEL,R,LOC,Z, *GET,LFT,NDMXNSEL,S,LOC,X,NSEL,R,LOC,Y, NSEL,R,LOC,Z,.00*GET,RGHT,NDMXNSEL,ALL! (18) 給上面選擇出的這些節(jié)點施加沿著X方向的軸向荷載/COM *** APPLY LOADS TO PARAMETRIC NODE NUMBERS ***F,RGHT,FX, F,LFT,FX, F,TOPP,FX, F,BOTT,FX, F,MIDD,FX, FINISH! (19) 對這種荷載情況進(jìn)行計算/SOLUSOLVE! (20) 改變荷載，給上面選擇出的這些節(jié)點施加沿著Y方向的軸向荷載，重新計算FDELE,ALLF,RGHT,FY, F,LFT,FY, F,TOPP,FY, F,BOTT,FY, F,MIDD,FY, SOLVE! (21) 改變荷載，給上面選擇出的這些節(jié)點施加沿著Z方向的軸向荷載，重新計算FDELE,ALLF,RGHT,FZ, F,LFT,FZ, F,TOPP,FZ, F,BOTT,FZ, F,MIDD,FZ, SOLVEFINISH! (22) 在后處理模塊中，顯示位移計算結(jié)果和理論結(jié)果的比值/POST1/COM *** USE MACRO TO PROCESS ALL 3 LOADCASES ***! (23) 利用前面定義的宏，處理前面計算的3中荷載工況*USE,MAC,1,(1/)SET,1,1LCSEL,S,0,0N1=NODE(,0,0)*GET,UX2,NODE,N1,U,X!*USE,MAC,2,(1/)SET,2,1LCSEL,S,0,0*GET,UY2,NODE,N1,U,Y!*USE,MAC,3,(1/.432)SET,3,1LCSEL,S,0,0*GET,UZ2,NODE,N1,U,Z!! (24) 定義字符變量，比較理論結(jié)果和有限元結(jié)果的比值*DIM,LABEL,CHAR,3,2*DIM,VALUE,3,3LABEL(1,1) = 39。DEFL X 39。,39。DEFL Y 39。,39。DEFL Z 39。LABEL(1,2) = 39。in39。,39。in39。,39。in39。*VFILL,VALUE(1,1),DATA,*VFILL,VALUE(1,2),DATA,UX2,UY2,UZ2*VFILL,VALUE(1,3),DATA,ABS(UX2/()),ABS(UY2/),ABS(UZ2/)SAVE, TABLE_2FINISH!! (25) 改變?yōu)?0節(jié)點四面體耦合場單元SOLID98，重新計算懸臂梁在端部集中力作用下的雙向彎曲/CLEAR, NOSTART/PREP7/TITLE, (3), STRAIGHT CANTILEVER BEAM by SOLID98 ELEMENT.smrt,offMOPT,VMESH,MAINMOPT,AMESH,ALTE/COM *** REPEAT USING SOLID98 TETRAHEDRONS ***RESUMEET,1,SOLID98,2! (26) 選擇邊界上的某些節(jié)點，施加約束和荷載/COM *** GET NODE NUMBERS FOR LOAD APPLICATION ***NSEL,S,LOC,X,NSEL,R,LOC,Y,NSEL,R,LOC,Z,*GET,MIDD,NDMX!NSEL,S,LOC,X,NSEL,R,LOC,Y,NSEL,R,LOC,Z,*GET,TOPP,NDMX!NSEL,S,LOC,X,NSEL,R,LOC,Y,NSEL,R,LOC,Z, *GET,BOTT,NDMX!NSEL,S,LOC,X, NSEL,R,LOC,Y, NSEL,R,LOC,Z, *GET,LFT,NDMX!NSEL,S,LOC,X,NSEL,R,LOC,Y, NSEL,R,LOC,Z,.00*GET,RGHT,NDMXNSEL,ALL! (27) 給上面選擇出的這些節(jié)點施加沿著X方向的軸向荷載/COM *** APPLY LOADS TO PARAMETRIC NODE NUMBERS ***F,RGHT,FX, F,LFT,FX, F,TOPP,FX, F,BOTT,FX, F,MIDD,FX, FINISH! (28) 改變荷載，給上面選擇出的這些節(jié)點施加沿著Y方向的軸向荷載，重新計算/SOLUSOLVEFDELE,ALLF,RGHT,FY, F,LFT,FY, F,TOPP,FY, F,BOTT,FY, F,MIDD,FY, ! (29) 改變荷載，給上面選擇出的這些節(jié)點施加沿著Z方向的軸向荷載，重新計算SOLVEFDELE,ALLF,RGHT,FZ, F,LFT,FZ, F,TOPP,FZ, F,BOTT,FZ, F,MIDD,FZ, SOLVEFINISH! (30) 在后處理模塊中，顯示位移計算結(jié)果和理論結(jié)果的比值/POST1/COM *** USE MACRO TO PROCESS ALL 3 LOADCASES ***! (31) 利用前面定義的宏，處理前面計算的3中荷載工況*USE,MAC,1,(1/)SET,1,1LCSEL,S,0,0N1=NODE(,0,0)*GET,UX3,NODE,N1,U,X!