ansys弹簧建模有限元分析.doc

ET,1,COMBIN14,,,2 ! UX AND UY DOF ELEMENT(单元类型) ET,3,COMBIN40,,,,,,2 ! ALL MASS IS AT NODE J, UX DOF ELEMENT ET,4,COMBIN40,,,2,,,2 ! ALL MASS IS AT NODE J, UY DOF ELEMENT R,1,1 ! SPRING STIFFNESS = 1（刚度） R,2,8 ! SPRING STIFFNESS = 8 /COM USE COMBIN40 MASS, K, AND DAMPING C, TO APPROX. CRITICAL DAMPING R,3,,1.41,1 ! C = 1.41, M = 1（实常数） R,4,,2,1 ! C = 2, M = 1 N,1（创建节点） N,2,,10 N,3,,20 N,4,-1,10 N,5,,9 LOCAL,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 CAN BE DIRECTLY APPLIED E,1,2 （连接1,2单元被赋予实常数） ! ELEMENT 1 IS SPRING ELEMENT WITH STIFFNESS 1 REAL,2 E,2,3 （连接2,3并且赋值） ! ELEMENT 2 IS SPRING ELEMENT WITH STIFFNESS 8 TYPE,3（单元3） REAL,3（实常数3） E,4,2 （连接4,2并且赋值） ! ELEMENT 3 IS COMBINATION ELEMENT WITH C = 1.41 TYPE,4 REAL,4 E,5,2 ! ELEMENT 4 IS COMBINATION ELEMENT WITH C = 2 NSEL,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 /SOLU ANTYPE,TRANS ! FULL TRANSIENT DYNAMIC ANALYSIS NLGEOM,ON ! LARGE DEFLECTION KBC,1 ! STEP BOUNDARY CONDITION F,2,FX,7.071068 ! FORCE IS IN ROTATED NODAL COORDINATE SYSTEM AUTOTS,ON NSUBST,20 OUTPR,,20 OUTPR,VENG,20 TIME,15 ! ARBITRARY TIME FOR SLOW DYNAMICS SOLVE FINISH /POST1 SET,,,,,15 ! USE ITERATION WHEN TIME = 15 ETABLE,SENE,SENE ! STORE STRAIN ENERGY SSUM ! SUM ALL ACTIVE ENTRIES IN ELEMENT STRESS TABLE *GET,ST_EN,SSUM,,ITEM,SENE PRNSOL,U,COMP ! PRINT DISPLACEMENTS IN GLOBAL COORDINATE SYSTEM *GET,DEF_X,NODE,2,U,X *GET,DEF_Y,NODE,2,U,Y *DIM,LABEL,CHAR,3,2 *DIM,VALUE,,3,3 LABEL(1,1) = STRAIN E,DEF_X (C,DEF_Y (C LABEL(1,2) = , N-cm ,m) ,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),