西北狂沙 发表于 2006-5-25 21:46

关于加速度计如何加载动态脉冲信号?

<P>我的事加速度计的动态性能测试,在做瞬态分析时遇到问题了,做好建模后不知道如何加载脉冲信号,使着做了一些,可忙活了两天还是过不了这一关!请各位大侠帮忙呀!我的程序是:<BR>/BATCH<BR>! /COM,ANSYS RELEASE9.0    UP20041104       21:21:18    03/29/2006            <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>! SAVE, high-g,db,<BR>FINISH<BR>/SOL<BR>ANTYPE,trans<BR>TRNOPT,FULL<BR>OUTRES,ALL,ALL,<BR>KBC,1<BR>autots,on<BR>!alphad,5<BR>FLST,2,2,5,ORDE,2   <BR>FITEM,2,5   <BR>FITEM,2,15<BR>!*<BR>/GO <BR>DA,P51X,ALL,<BR>time, 200e-6<BR>acel,0,500000<BR>lswrite,1<BR>time,400e-6<BR>acel,,0<BR>lswrite,2<BR>lssolve,1,2,1<BR>finish<BR>!!!!!!!!!!!!!!!!!<BR>!dt=1e-6                     !*给定循环时间间隔<BR>!*DO,J,1,200            !*执行10次重复计算<BR>!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!FK,fz_kp,FZ,30000*SIN(2*3.14*dt*J)            <BR>!ACEL,0,500000*SIN(2*3.14/(100e-6)*(dt*J)),0, <BR>!TIME,dt*J       !*设置载荷步时间<BR>!NSUBST,1,,,1   !*设置子步数目<BR>!KBC,0               !*设置载荷增量方式为渐变方式<BR>!alphad,10<BR>!betad,0.2<BR>!dmprat,1<BR>!timint,on<BR>!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<BR>!OUTRES,ALL,ALL, <BR>!SOLVE<BR>!*ENDDO<BR>!FINISH</P>
<P>/POST1<BR>PLDISP,2</P>
<P>其中后半段的屏蔽掉的程序就是自己做的有问题的程序,还有加速度计的阻尼自己也不知道如何加载! 毕业设计就一直困在这里走不出去了!真的是极其失意!!!还望大家帮我呀!!!!!感激不尽!!!!</P>

AaronSpark 发表于 2006-5-26 06:25

回复:(西北狂沙)关于加速度计如何加载动态脉冲信号...

你做的是什么加速度计?
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