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- 2010-9-15
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- 1970-1-1
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用ansys随机振动分析后,所得结果比用单点规范反应谱分析和时程分析大了好几个数量级,不晓得问题出在哪儿?请高手帮忙分析一下,谢谢 欢迎讨论
部分命令流:
/prep7
et,建模……
fini
/solu !模态分析
antype,modal
modopt,lanb,100
mxpand,100,,,yes,0.005
solve
fini
/solu !随机谱分析
antype,spectr
spopt,psd,100,yes
dmprat,0.02
sed,1,0,0
psdwav,1,100000,0,0
psdunit,1,acel
psdfrq,1,,0.1,0.5,0.8,1,1.5,2,2.5
psdfrq,1,,3,3.5,4,5,6,7,8
psdval,1,0.00071473,0.000768439,0.000837226,0.000881686,0.000924843,0.00083028,0.000656195
psdval,1,0.000483666,0.000347286,0.000248793,0.000131779,7.40555E-05,4.41088E-05,2.76472E-05
d,927,all,1
d,944,all,1
d,961,all,1
d,978,all,1
OUTRES,ALL,ALL
psdres,disp,abs
psdres,velo,abs
psdres,acel,abs
pfact,1,base
solve
fini
/solu !模态合并
antype,spectr
psdcom,0.001,100
solve
fini
/post1 !后处理 |
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