Ansys 中关于分布加载的情况模拟 1. 单调加载 [do 循环的应用] 2. 滞回曲线 !EX4.20 线性/非线性静态分析的荷载步直接求解 P288 王新敏教材 步骤：Time 荷载步 ----nsubst 子步--------施加荷载（位移或力）-------solve 求解 /solu antype,0 nlgeom,on ！打开大变形（即非线性打开） outres,all,all autots,off time,1 nsubst,10 f,2,fy,-2000 solve time,2 f,2,fy,2000 nsubst,20 solve time,3 f,2,fy,-4000 nsubst,30 solve time,4 f,2,fy,4000 nsubst,30 solve finish /post26 nsol,2,2,u,y rforce,3,1,f,y prod,4,2,,,,,,-1 /axlab,x,Uy /axlab,y,Fy xvar,4 plvar,3 prvar,3,4 画荷载-位移曲线的方法 ===== !EX8.5 端部受集中力的悬臂梁几何非线性分析 P452 王新敏教材 /solu dk,1,all antype,0 nlgeom,1 nsubst,20 outres,all,all *do,i,1,10 fk,2,fy,-i*phz time,i*phz solve *enddo ！单调加载的方法 /post26 nsol,2,2,u,y nsol,3,2,u,x prod,4,2,,,,,,-1 prod,5,3,,,,,,-1 xvar,4 plvar,1ANSYS 绘制滞回曲线 前段时间刚学的用ANSYS 绘制钢框架接点的滞回曲线。现在写了命令流给大家看一下了： /PREP7 !定义单元类型，实常数，材料特性 ET,1,SHELL143 R,1,12, , , , , MP,EX,1,196784 MP,NUXY,1,0.3 !双线性随动强化模型 TB,BKIN,1,1,2,1 TBDATA,,310,600,,,, !定义关键点、线、面 K,1,54,0,0 K,2,-54,0,0 K,3,54,0,1000 K,4,-54,0,1000 A,1,2,4,3 !定义边界荷强迫位移,划分网格 AESIZE,ALL,27, MSHAPE,0,2D MSHKEY,0 CM,_Y,AREA ASEL, , , , 1 CM,_Y1,AREA CMSEL,S,_Y AMESH,_Y1 *do ,i,1,5 D,i,ALL,0 *en ddo OUTPR,BASIC,ALL, OUTRES,ALL,ALL, !第1 荷载步 D,46,u x ,10 TIME,1 AUTOTS,0 NSUBST,10, , ,1 KBC,0 ! kbc,0 :载荷一步步加上去的 kbc,1 :载荷一下子就加上去了 LSWRITE,01, !第2 荷载步 D,46,u x ,-10 TIME,3 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,02, !第3 荷载步 D,46,u x ,20 TIME,5 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,03, !第4 荷载步 D,46,u x ,-20 TIME,7 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,04, D,46,u x ,30 TIME,9 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,05, D,46,u x ,-30 TIME,11 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,06, D,46,ux,40 TIME,13 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,07, D,46,ux,-40 TIME,15 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,08, D,46,ux,60 TIME,17 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,09, D,46,ux,-60 TIME,19 AUTOTS,0 NSUBST,20, , ,1 KBC,0 LSWRITE,10, !求解 FINISH /SOLU LSSOLVE,1,10,1, !画出荷载位移曲线 FINISH /POST26 NSOL,2,46,U,X, RFORCE,3,46,F,X, XVAR,2 PLVAR,3, , , , , , , , , , =================================================
