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1、1.3研究工作1.3.1正方形薄板的模态分析/PREP7ET,1,SHELL93MP,EX,1,2.1E8MP,DENS,1,7.8MP,NUXY,1,0.3R,1,0.01K,K,,1K,,1,,1K,,,,1A,1,2,3,4LESIZE,ALL,,,8,,,,,1MSHAPE,0,2DMSHKEY,0AMESH,1FINISH/SOLUDK,ALL,UY,,,,UX,UZANTYPE,MODALMODOPT,LANB,10!指定模态提取方法,提取个数EQSLV,SPAR!指定求解器MXPAND,10,,,1!指定扩展10阶模态LUM
2、PM,0!使用一致质量矩阵PSTRSS,0!不考虑预应力效应SOLVEFINISH/POST1SET,LIST!列表前十阶模态SET,FIRST!读入第一阶结果PLDISP,0FINISH