浮筏隔振系统谐响应分析时如何设置系统和隔振器的阻尼

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中间筏体我用的桁架,命令流如下,不知道怎么修改,请大神赐教,谢谢!


fini
/cle
/prep7
k,1,0,0,0
k,11,2,0,0
kfill,1,11
kgen,6,1,11,1,0,0,-0.2,11
kgen,4,1,66,1,0,0.1,0,66


l,1,2 !建立x方向连杆
lgen,10,1,1,1,0.2,0,0,1
l,12,13
lgen,10,11,11,1,0.2,0,0,1
l,23,24
lgen,10,21,21,1,0.2,0,0,1
l,34,35
lgen,10,31,31,1,0.2,0,0,1
l,45,46
lgen,10,41,41,1,0.2,0,0,1
l,56,57
lgen,10,51,51,1,0.2,0,0,1

l,1,12 !建立z方向连杆
lgen,5,61,61,1,0,0,-0.2,11
lgen,11,61,65,1,0.2,0,0,1
lgen,4,1,115,1,0,0.1,0,66


l,1,67 !建立y方向连杆
lgen,3,461,461,1,0,0.1,0,66
lgen,11,461,463,1,0.2,0,0,1


lgen,6,461,493,1,0,0,-0.2,11


lglue,all


et,1,pipe16 !建立单元参数
et,2,solid45
et,3,combin14
et,4,combin14
et,5,combin14


KEYOPT,3,2,1
KEYOPT,4,2,2
KEYOPT,5,2,3


r,1,70000 !xz方向上的刚度
r,2,240000 !上层隔振器y方向上的刚度
r,3,450000 !下层隔振器y方向上的刚度
r,4,0.02,0.008 !桁架钢管的截面积与内部液体阻尼密度


mp,ex,1,2.1e11 !基础参数
mp,prxy,1,0.3
mp,dens,1,7800


mp,ex,2,2.1e11 !机组参数
mp,prxy,2,0.3
mp,dens,2,4375


mp,ex,3,2.1e12 !中间筏体参数
mp,prxy,3,0.3
mp,dens,3,3271
mp,damp,3,0.01



mp,damp,4,0.4 !上层阻尼
mp,damp,5,0.8 !下层阻尼
mp,damp,6,0.3
type,1 !桁架网格划分
mat,3
real,4
esize,0.1
lmesh,all
block,0.3,0.9,0.4,0.6,-0.3,-0.7 !机组模型
block,1.1,1.7,0.4,0.6,-0.3,-0.7
block,0,2,-0.1,-0.115,0,-1 !基础模型
block,0,2,-0.2,-0.215,0,-1
block,0.3,0.31,-0.2,-0.115,0,-1 !纵向z方向肋板
block,1.0,1.01,-0.2,-0.115,0,-1
block,1.7,1.71,-0.2,-0.115,0,-1
block,0,2,-0.2,-0.115,-0.3,-0.31 !横向x方向肋板
block,0,2,-0.2,-0.115,-0.7,-0.71
vadd,3,4,5,6,7,8,9
hptcreate,area,3,401,coord,0.4,0.4,-0.4 !上层隔振上端3号面上硬点
hptcreate,area,3,402,coord,0.6,0.4,-0.4
hptcreate,area,3,403,coord,0.8,0.4,-0.4
hptcreate,area,3,404,coord,0.4,0.4,-0.6
hptcreate,area,3,405,coord,0.6,0.4,-0.6
hptcreate,area,3,406,coord,0.8,0.4,-0.6
hptcreate,area,9,407,coord,1.2,0.4,-0.4 !上层隔振上端9号面上硬点
hptcreate,area,9,408,coord,1.4,0.4,-0.4
hptcreate,area,9,409,coord,1.6,0.4,-0.4
hptcreate,area,9,410,coord,1.2,0.4,-0.6
hptcreate,area,9,411,coord,1.4,0.4,-0.6
hptcreate,area,9,412,coord,1.6,0.4,-0.6
hptcreate,area,16,413,coord,0.2,-0.1,-0.2 !上层隔振上端16号面上硬点
hptcreate,area,16,414,coord,1.0,-0.1,-0.2
hptcreate,area,16,415,coord,1.8,-0.1,-0.2
hptcreate,area,16,416,coord,0.2,-0.1,-0.8
hptcreate,area,16,417,coord,1.0,-0.1,-0.8
hptcreate,area,16,418,coord,1.8,-0.1,-0.8
type,2 !机组网格划分
mat,2
mshkey,0
mshape,1,3D
esize,0.1
vmesh,1,2,1

type,2 !基础网格划分
mat,1
mshkey,0
mshape,1,3D
esize,0.1
vmesh,10
type,4 !上层隔振器连接
real,2
mat,4
e,794,589
e,795,591
e,796,593
e,797,610
e,798,612
e,799,614
e,929,597
e,930,599
e,931,601
e,932,618
e,933,620
e,934,622
type,3 !上层隔振器x方向连接
real,1
mat,6
e,794,589
e,795,591
e,796,593
e,797,610
e,798,612
e,799,614
e,929,597
e,930,599
e,931,601
e,932,618
e,933,620
e,934,622
type,5 !上层隔振器z方向连接
real,1
mat,6
e,794,589
e,795,591
e,796,593
e,797,610
e,798,612
e,799,614
e,929,597
e,930,599
e,931,601
e,932,618
e,933,620
e,934,622
type,4 !下层隔振器建立
real,3
mat,5
e,23,1692
e,31,1828
e,39,1708
e,86,1730
e,94,1829
e,102,1714
type,3 !下层隔振器x建立
real,1
mat,6
e,23,1692
e,31,1828
e,39,1708
e,86,1730
e,94,1829
e,102,1714
type,5 !下层隔振器z建立
real,1
mat,6
e,23,1692
e,31,1828
e,39,1708
e,86,1730
e,94,1829
e,102,1714
fini !模态分析
/sol
da,103,all
da,104,all
antype,modal
modopt,lanb,100
mxpand,100,,,0
modopt,lanb,100,0,1000,,off
acel,,9.8
allsel
solve
finish
/solu !谐响应分析
antype,harmonic
hropt,full
f,820,fy,-2355
f,955,fy,-2355
harfrq,0,1000
nsubst,100
kbc,0
allsel
solve
finish
fini
/post26
nsol,2,800,u,y,uy_compressor
nsol,3,794,u,y,uy_up_up
nsol,4,589,u,y,uy_raft_upper surface
nsol,5,23,u,y,uy_bottom_up
nsol,6,1692,u,y,uy_base_bottom
plvar,2,4,6


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