ansys五层框架分析.doc

结构动力学作业杜玉东 2003205009!空间框架的动力分析/clear/title,kongjiankuangjiadyan/PREP7 wide=0.5high=0.5DAMPRATIO=0.05ET,1,BEAM189 ET,2,SHELL63R,1,0.1, , , , , , MP,EX,1,3e7MP,PRXY,1,0.2 MP,DENS,1,2.5 SECTYPE, 1, BEAM, RECT, secA, 0 SECOFFSET, CENT SECDATA,wide,high,0,0,0,0,0,0,0,0 K,1 k,2,0,6k,3,6,6k,4,6,0kgen,2,1,4,1,0,0,3,4 LSTR,1,5 LSTR, 2,6 LSTR,3,7 lstr,4,8LSEL,all LATT,1,1,1, , , ,1 LSEL, , , ,ALL LESIZE,ALL, , ,2, , , , ,1 LMESH,alla,5,6,7,8TYPE, 2 MSHAPE,0,2D MSHKEY,1 AMESH,1 egen,5,100,all,0,0,3NUMMRG,ALLNUMCMP,ALL/SOLU nsel,s,loc,z,0D,all,ALLallsel/SOLU ! 模态分析ANTYPE,2MODOPT,SUBSP,8 MXPAND,8, , ,1 SOLVEFINI!得到自振频率1*GET,FREQ1,MODE,1,FREQ /ESHAPE,1.0 /SOLU ANTYPE,SPECTR !谱分析 SPOPT,SPRSMDAMP,1,0.05, , , , , , SED,1SVTYPE,2,1FREQ,0.167,0.25,0.333,0.44444,0.5,0.667,1,1.25,1.667SV,0.154350625,0.191590625,0.210210625,0.224175625,0.250716714,0.329514922,0.484352764,0.598723486,0.786897371FREQ,2.222,10,100000SV,1.034212766,1.034212766,0.3528!按7度多遇地震，地震影响系数0.08 第一组III场地TG0.45SRSS,0.01,DISPSOLVEFINISH/POST1/INP,MCOMNSORT,U,SUM *GET,DMAX_SPE,SORT, ,MAX !反应谱最大变形FINISH ！时程分析/CONFIG,NRES,2000*SET,NT,1200*SET,DT,0.01 *DIM,AC,NT *VREAD,AC(1),tjb,TXT ！输入地震波 (F10.4) /SOLUANTYPE,TRANSTRNOPT,FULL*DO,I,1,1000ACEL,AC(I),0,0TIME,I*0.01OUTRES,ALL,ALLSOLVE*ENDDOFINISH/POST26FILENSOL,2,20,U,X,PLVAR,2, , , , , , , , , ,STORE,MERGEXVAR,1PLVAR,2,*GET,DMAX_TRANS,VARI,2,EXTREM,VMAX, , ! 时程分析最大位移模态分析结果结构前八阶频率SET TIME/FREQ LOAD STEP SUBSTEP CUMULATIVE 1 0.96222 1 1 1 2 0.96222 1 2 2 3 1.4900 1 3 3 4 4.9614 1 4 4 5 4.9614 1 5 5 6 5.0973 1 6 6 7 5.1153 1 7 7 8 5.1211 1 8 8谱分析部分结果PRINT U NODAL SOLUTION PER NODE * POST1 NODAL DEGREE OF FREEDOM LISTING * NODE UX 2 0.12309E-02 61 0.83655E-02 89 0.12817E-01 117 0.17251E-01MAXIMUM ABSOLUTE VALUES NODE 117 VALUE 0.17251E-01 NODE UY 2 0.31146E-03 61 0.21167E-02 89 0.32427E-02 117 0.43647E-02 PRINT M ELEMENT SOLUTION PER ELEMENT ELEM= 1 MX MY MZ 1 12.257 48.509 0.38924E-04 4 10.004 39.499 0.38912E-04 3 0.26724E-04 0.10484E-03 0.11753E-07 ELEM= 2 MX MY MZ 4 10.004 39.499 0.38901E-04 2 7.7570 30.509 0.38865E-04 5 0.72749E-04 0.28555E-03 0.35249E-07 ELEM= 3 MX MY MZ 6 12.302 48.516 0.39682E-04 9 9.9879 39.493 0.39670E-04 8 0.26782E-04 0.10450E-03 0.11664E-07 时程分析结果顶层节点位移值和反应曲线TIME 129 UX UX 3.8100 -2.79595 3.8200 -2.99968 3.8300 -3.19384 3.8400 -3.37624 3.8500 -3.54517 3.8600 -3.69929 3.8700 -3.83751 3.8800 -3.95888 3.8900 -4.06273 3.9000 -4.14874 3.9100 -4.21677 3.9200 -4.26673