求救——阻尼加载疑问！
我做的是高g加速度计瞬态分析，给一7万g（重力加速度）的脉冲信号，命令流入下:<BR>/BATCH <BR>!*<BR>! /REPLOT,RESIZE<BR>/CWD,'F:\0FEM_GAO'<BR>/CWD,'F:\0FEM_GAO'<BR>/FILNAME,high-g-dyna,0 <BR>/PREP7<BR>ET,1,SOLID95<BR>MPTEMP,,,,,,,,<BR>MPTEMP,1,0<BR>MPDATA,EX,1,,200e9<BR>MPDATA,PRXY,1,,0.3<BR>MPTEMP,,,,,,,,<BR>MPTEMP,1,0<BR>MPDATA,DENS,1,,7800 <BR>RECTNG,2e-3,5.5e-3,0,1.5e-3,<BR>RECTNG,-0.002,0.002,0.5e-3,0.0015,<BR>RECTNG,-0.002,-0.0055,0,0.0015, <BR>!*<BR>VOFFST,3,3e-3, ,<BR>! APLOT <BR>!*<BR>VOFFST,2,0.003, , <BR>!*<BR>VOFFST,1,0.003, , <BR>WPSTYLE,,,,,,,,1<BR>WPSTYLE,,,,,,,,0<BR>! /VIEW, 1 ,1,2,3 <BR>! /ANG, 1 <BR>! /REP,FAST <BR>FLST,2,3,6,ORDE,2 <BR>FITEM,2,1 <BR>FITEM,2,-3<BR>VGLUE,P51X<BR>!*<BR>SMRT,6<BR>!*<BR>MSHAPE,1,3D <BR>MSHKEY,0<BR>!*<BR>FLST,5,3,6,ORDE,2 <BR>FITEM,5,4 <BR>FITEM,5,-6<BR>CM,_Y,VOLU<BR>VSEL, , , ,P51X <BR>CM,_Y1,VOLU <BR>CHKMSH,'VOLU' <BR>CMSEL,S,_Y<BR>!*<BR>VMESH,_Y1 <BR>!*<BR>CMDELE,_Y <BR>CMDELE,_Y1<BR>CMDELE,_Y2<BR>!*<BR>FINISH<BR>/SOL<BR>ANTYPE,trans<BR>TRNOPT,FULL<BR>OUTRES,ALL,ALL,<BR><FONT color=#e61a94><FONT color=#000000>alls</FONT><BR>alph,5 !质量阻尼加载为 5</FONT><BR>time,on <BR>deltim,1e-5,0.5e-5,2.5e-5<BR>autots,on<BR>KBC,1<BR>FLST,2,2,5,ORDE,2 <BR>FITEM,2,5 <BR>FITEM,2,15<BR>!*<BR>/GO <BR>DA,P51X,ALL,<BR>time, 600e-6<BR>acel,0,700000<BR>lswrite,1<BR>time,800e-4<BR>acel,,0<BR>lswrite,2<BR>lssolve,1,1,1<BR>finish<BR>/POST 1<BR>PLDISP,2<BR> 可气怪的是，加载阻尼和忽略阻尼加载效果一样，加速度计的响应信号波形完全一样，是一个逐渐震荡稳定的合成复杂正弦信号，难道阻尼不起作用么？？还是我的阻尼加载有问题呢？觉得自己应该加载质量阻尼而不是刚度阻尼和其他阻尼，不知道哪位可以释义呀？
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