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1、/prep7et,l,beam3R,l,0,08,0,00107,0.3Mp,ex 丄 3e10Mp,prxy,1,0.3Mp,dens,1,2500N,1,0,0,0N,11,10,0,0Fill,1,11,9Type,1Mat,1Real,1Type,1Mat,1Real,1*do,ii,1,10E, ii,ii+1*enddo/soluAntype,staticD,1,uyD,1,uxD,11,uyF, 11,fx,10000000 Pstres,onSolveFinish/soluAntype.modalModopt,lanb,6Pstres,onSolveFinish/post1Se
2、t,listSet,1,1Pldisp,1Set,1,2Pldisp,1Set,1,3Pldisp,1Set,1,4Pldisp,1Set,1,5Pldisp,lSet,l,6Pldisp,1Finishr八 SET,LIST CommandS3File* INDEX OF DATA SETS ON RESULTS FILE *SETTIME/FREQLOAD STEPSUBSTEPCUMULATIUE112.821111233.583122365.462133486.6921445109.181556164.85166图IT简支梁固有频率图1-2 一阶模态STEP=1SUB =2FREQ=33.5S29DMK =.030061NOT 30 201417:00:02图1-3二阶模态图1-4三阶模态NOT 30 201417:01:09ANSYSNOV 30 201417:01:40STEP=1SUB =4EREQ=e6n6916DMX =.0316881 H U 1n二a二aaaLJ图1-5四阶模态DISPLACEMENTSTEP=1SUB =5FREQ=109.179DMX =.030261图1-6五阶模态图1-7六阶模态
