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[结构分析] ANSYS模态分析出错,求高手指点!!

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发表于 2014-7-31 22:53 | 显示全部楼层 |阅读模式

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用ANSYS做一个模态分析,但是报错:the computed element record length does not match the actual element record length in the .ESAV file for element.........

命令流如下,建模应该是没问题,就是模态分析有问题(从/SOLU开始)。求高手指点一下啊!!!
FINISH
/CLEAR
/PREP7

!the area of upper steel
PI=ACOS(-1)
D1=0.001
D2=0.0016
A1=2*PI*(D1/2)**2
!the area of lower steel
A2=2*PI*(D2/2)**2
!the width of the concrete
Bc=0.2
!the width of the FRP
Bfrp=0.05
!concrete compressive strength
!FC=24.64E6
FC=27.3E6
!UNKNOWN
FT=2.2E6
!element size
ELESIZE=0.01


!concrete
ET,1,PLANE42
KEYOPT,1,3,3
MP,EX,1,FC*0.2483/0.00027  
MP,PRXY,1,0.2
MP,DENS,1,2400
R,1,Bc
!define the nolinear property of concrete
TB,CONCR,1
TBDATA,,0.5,0.95,FT,-1
TB,MISO,1,,10
TBPT,,0.00027,FC*0.2483  
TBPT,,0.00053,FC*0.4512   
TBPT,,0.0008,FC*0.6146   
TBPT,,0.0011,FC*0.7437   
TBPT,,0.0013,FC*0.8427   
TBPT,,0.0016,FC*0.915   
TBPT,,0.0019,FC*0.9636   
TBPT,,0.0021,FC*0.9912   
TBPT,,0.0024,FC*1     
TBPT,,0.0035,FC*1



!steel
ET,2,LINK1
R,2,A1
R,3,A2


!ET,2,BEAM3     
!KEYOPT,2,6,1
!KEYOPT,2,9,0
!R,2,A1,2*PI*D1**4/32,D1,0,0,0,   
!R,3,A2,2*PI*D2**4/32,D2,0,0,0,  

MP,EX,2,2.1E11
MP,PRXY,2,0.33

!define the steel property of concrete
TB,BISO,2
TBDATA,,590E6,1E9





!frp
ET,4,PLANE42
KEYOPT,4,3,3
MP,EX,4,165E9
MP,PRXY,4,0.35
MP,DENS,4,1650
R,4,Bfrp

!adhesive
ET,5,PLANE42
KEYOPT,5,3,3
MP,EX,5,7.87E9
MP,PRXY,5,0.35
R,5,Bfrp





!
!MODELING
!concrete
BLC5,0,0,3.5,0.4
AATT,1,1,1


!steel
WPROTA,,-90
WPOFF,,,0.2-0.026
ASBW,ALL
WPOFF,,,-0.2+0.026-0.2+0.026
ASBW,ALL

LSEL,S,LOC,X,0
LSEL,R,LOC,Y,0.2-0.026
LATT,2,2,2
LESIZE,ALL,ELESIZE
LMESH,ALL


LSEL,S,LOC,X,0
LSEL,R,LOC,Y,-0.2+0.026
LATT,2,3,2
LESIZE,ALL,ELESIZE
LMESH,ALL
WPCSYS,-1



!adhesive
ASEL,NONE
BLC5,0,-0.2-0.0014/2,3.36,0.0014
AATT,5,5,5



!frp
ASEL,NONE
BLC5,0,-0.2-0.0014-0.0014/2,3.36,0.0014
AATT,4,4,4



ALLSEL
AGLUE,ALL
ESIZE,ELESIZE
MSHAPE,0
AMESH,ALL

NUMMRG,ALL



FINISH



/SOLU
ANTYPE,2


!constrain nodes
NSEL,S,LOC,X,-3.5/2,-3.5/2+0.05
NSEL,R,LOC,Y,-0.2
D,ALL,ALL

NSEL,S,LOC,X,3.5/2-0.05,3.5/2
NSEL,R,LOC,Y,-0.2
D,ALL,UY

ALLSEL

MODOPT,LANB,5
MXPAND,5
SOLVE


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发表于 2014-8-1 16:32 | 显示全部楼层
试算了一下,没有什么问题啊?
结果如下:
     1  48.391
     2  142.80
     3  212.43
     4  380.57
     5  539.52
你求解时有什么错误信息?
 楼主| 发表于 2014-8-2 18:45 | 显示全部楼层
好奇怪啊,模型应该是没有问题的。为什么会出错呢?
而且你的能算,我的就不行呢??
求大侠解答啊!!!
 楼主| 发表于 2014-8-2 22:44 | 显示全部楼层
错误图片在这里,麻烦帮忙看看是神马问题啊?!难道是建模出错了吗?
1.png
发表于 2014-8-5 08:33 | 显示全部楼层
你是使用网络版的 ANSYS 的吗?如是,改用单机版的试试。
如果你使用的是单机版,那么是你的 ANSYS 有问题,另安装一个吧,或者换一台机器试试。
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