ansys弹簧建模有限元分析

1、a） Un哎血nwS（t） Oefcxni«lET,1,COMBIN14,2! UX AND UY DOF ELEMENT（单元类型）ET,3,COMBIN40,2! ALL MASS IS AT NODE J, UX DOFELEMENTET,4,COMBIN40,2,2! ALL MASS IS AT NODE J, UY DOF ELEMENTR,1,1! SPRING STIFFNESS = 1（冈H度）R,2,8! SPRING STIFFNESS = 8/COM USE COMBIN40 MASS, K, AND DAMPING C, TO APPROX. CRITICA

2、L DAMPINGR,3,1.41,1! C = 1.41, M = 1（实常数）R,4,2,1! C = 2, M = 1N,1 （创建节点）N,2,10N,3,20N,4,-1,10N,5,9LOCAL,11,0,0,0,0,45 （设置局不坐标）NROTAT,2（移动工作坐标系）！ ROTATE NODE SO LOAD CANBE DIRECTLY APPLIEDE,1,2（连接1,2单元被赋予实常数）！ ELEMENT 1 ISSPRING ELEMENT WITH STIFFNESS 1REAL,2! ELEMENT 2 IS SPRINGE,2,3 （连接2,3并且赋值）ELEM

3、ENT WITH STIFFNESS 8TYPE,3 （单元 3）REAL,3 （实常数3）E,4,2 （连接 4,2 并且赋值）！ELEMENT IS COMBINATIONELEMENT WITH C = 1.41TYPE,4REAL,4E,5,2! ELEMENT 4 IS COMBINATION ELEMENT WITH C =2NSEL,U,NODE,2（无效果）D,ALL,ALL （在 node定义自由度 出约束定义节点自由度约束 ）NSEL,ALL FINISH /SOLUANTYPE,TRANS NLGEOM,ON KBC,1 F,2,FX,7.071068 AUTOTS,ON

4、 NSUBST,20 OUTPR,20 OUTPR,VENG,20 TIME,15 SOLVEFINISH/POST1SET,15! FULL TRANSIENT DYNAMIC ANALYSIS! LARGE DEFLECTION! STEP BOUNDARY CONDITION!FORCES IN ROTATEDODACOORDINATSYSTEM! ARBITRARY TIME FOR SLOW DYNAMICS! USE ITERATION WHEN TIME = 15ETABLE,SENE,SENE ! STORE STRAIN ENERGYSSUM! SUM ALL ACTIVE

5、ENTRIES IN ELEMENT STRESSTABLE *GET,ST_EN,SSUM,ITEM,SENEPRNSOL,U,COMP! PRINT DISPLACEMENTS IN GLOBAL COORDINATESYSTEM*GET,DEF_X,NODE,2,U,X*GET,DEF_Y,NODE,2,U,Y*DIM,LABEL,CHAR,3,2*DIM,VALUE,3,3LABEL（1,1） = 'STRAIN E','DEF_X （C','DEF_Y （C'LABEL（1,2） = ', N-cm ','m）&

6、#39;,'m）'*VFILL,VALUE（1,1）,DATA,24.01,8.631,4.533*VFILL,VALUE(1,2),DATA,ST_EN ,DEF_X,DEF_Y *VFILL,VALUE(1,3),DATA,ABS(ST_EN/24.01), ABS(8.631/DEF_X), ABS(DEF_Y/4.533 )/COM/OUT,vm9,vrt/COM, VM9 RESULTS COMPARISON /COM,/COM, | TARGET | ANSYS | RATIO/COM,*VWRITE,LABEL(1,1),LABEL(1,2),VALUE(1,1),VALUE(1,2),VALUE(1,