Transient transient dynamic response 해석, 많은 질책 부탁드립니다.

[gkares]

판 모서리에 spring-damper를 달고 y(t)= e^100t-e^-300t) 의 가진을 주어 transient response를 알아보고자 합니다. 시간영역으로 확인하고 싶어 과도해석을 하려합니다. 우선 선형해석을 마친후 판의 모서리부분에 요소를 combin14에서 COMBIN39나 COMBIN40으로 바꾸어 비선형해석을 하려 합니다. 때문에 full method방법을 사용하였습니다. 기저부변위가진이라 직접 table을 만들어 시간에 따른 가진을 하였고 판위에 spring-damper system에 달려있는 transient response를 알아보려 하였습니다. transient dynamic은 처음인지라 많은 질책 부탁드립니다.

FINISH
/CLEAR
!

/PREP7
/TITLE, PLATE & MASS SYSTEM TRASIENT RESPONSE
!UNIT US


MP,EX,1,30E6 !YOUNG'S MODULUS (UNIT:psi= lbf/1 in^2)
MP,DENS,1,735E-6 !Density (UNIT:lbf-sec^2/in^4)
MP,NUXY,1,0.3
!*
ET,1,SHELL63
ET,2,COMBIN14
ET,3,COMBIN39
ET,4,MASS21



!===========================================================
! REAL CONSTANT
!===========================================================
R,1,1 ! PLATE THICKNESS (inch)
R,2,500,5,, !ADD SPRING STIFFNESS (k:lb/in, c:lb-s/in)
R,3,10000,5 !BASE SPRING STIFFNESS (k:lb/in, c:lb-s/in)
R,4,-0.35,-5.7,-0.28,-5,-0.26,-4.4 ! SPRING DATA
RMORE,-0.24,-4.1,-0.22,-3.8,-0.2,-3.0
RMORE,-0.18,-2.2,-0.16,-1.8,-0.12,-0.8
RMORE,-0.11,-0.07,-0.10,-0.06,-0.06,-0.04,0.04
RMORE,-0.02,-0.02,0.0,0,0.10,1,0.2,2,0.3,3
RMORE,0.40,3.8,0.0.5,3.9
R,5, 0.25898,0.25898,0.25898 ! MASS (lb-sce^2/in)

!===============Plate creat
k,1,0,0,0
k,2,60,0,0
k,3,60,60,0
k,4,0,60,0

a,1,2,3,4

WPCSYS,-1,0
wpoff,12
wprot,,,90
asbw,all

wpoff,,,12
asbw,all

wpoff,,,12
asbw,all

wpoff,,,12
asbw,all

wpoff,,12,,
wprot,,90,
asbw,all

wpoff,,,-12
asbw,all

wpoff,,,-12
asbw,all

wpoff,,,-12
asbw,all

WPCSYS,-1,0



!================Plate Mesh

real,1 ! 1 inch

asel,s,loc,z,0
amesh,all

!------Base spring node copy
FLST,4,4,1,ORDE,4
FITEM,4,1
FITEM,4,17
FITEM,4,37
FITEM,4,81
NGEN,2,256,P51X, , , , ,-2.835,1,


!------Add spring node copy
FLST,4,1,1,ORDE,1
FITEM,4,210
NGEN,2,337,P51X, , , , ,2.835,1,


type,2
real,2
e,17,273
e,1,257
e,37,293
e,81,337

type,2
real,3
e,210,547

type,4
real,5
E,547


!---------------Soution
/SOLU
ANTYPE,4
!*
TRNOPT,FULL
!LUMPM,0
KBC,1
!*
TIME,0.1
DELTIM,0.001
AUTOTS,1



!-------------Boundary condision
nsel,all
nplot

nsel,s,loc,y,60
nsel,r,loc,z,0

/SOL
FLST,2,16,1,ORDE,14
FITEM,2,1
FITEM,2,5
FITEM,2,-7
FITEM,2,33
FITEM,2,37
FITEM,2,-39
FITEM,2,49
FITEM,2,53
FITEM,2,-54
FITEM,2,61
FITEM,2,65
FITEM,2,-66
FITEM,2,73
FITEM,2,-74
!*
/GO
D,P51X, , , , , ,UX,UY,,,,
!D,P51X, , , , , ,UX,UY,ROTX,ROTY,ROTZ,



nsel,all
nplot


nsel,s,loc,x,60
nsel,r,loc,z,0

FLST,2,16,1,ORDE,11
FITEM,2,1
FITEM,2,-4
FITEM,2,17
FITEM,2,21
FITEM,2,-23
FITEM,2,97
FITEM,2,-100
FITEM,2,145
FITEM,2,-146
FITEM,2,225
FITEM,2,-226
!*
/GO
D,P51X, , , , , ,UX,UY,,,,
!D,P51X, , , , , ,UX,UY,ROTX,ROTY,ROTZ,



nsel,all
nplot
nsel,s,loc,x,0
nsel,r,loc,z,0

FLST,2,16,1,ORDE,13
FITEM,2,37
FITEM,2,40
FITEM,2,-42
FITEM,2,81
FITEM,2,88
FITEM,2,91
FITEM,2,-92
FITEM,2,153
FITEM,2,-155
FITEM,2,189
FITEM,2,-191
FITEM,2,233
FITEM,2,-234
!*
/GO
D,P51X, , , , , ,UX,UY,,,,
!D,P51X, , , , , ,UX,UY,ROTX,ROTY,ROTZ,


nsel,all
nplot

nsel,s,loc,y,0
nsel,r,loc,z,0

!FLST,2,16,1,ORDE,10
!FITEM,2,17
!FITEM,2,-20
!FITEM,2,81
!FITEM,2,-84
!FITEM,2,113
!FITEM,2,-115
!FITEM,2,125
!FITEM,2,-127
!FITEM,2,137
!FITEM,2,-138
!!*
!/GO
D,P51X, , , , , ,UX,UY,,,,
!D,P51X, , , , , ,UX,UY,ROTX,ROTY,ROTZ,


nsel,all
nplot


FLST,2,4,1,ORDE,4
FITEM,2,257
FITEM,2,273
FITEM,2,293
FITEM,2,337
!*
/GO
D,P51X, , , , , ,UX,UY,ROTX,ROTY,ROTZ,





FLST,2,4,1,ORDE,4
FITEM,2,257
FITEM,2,273
FITEM,2,293
FITEM,2,337
!*
!*
*DIM,Displacement,TABLE,72,1,1,Time, , , 0
!*
/GO
D,P51X,UZ, %Displacement%
*SET,DISPLACEMENT(1,0,1) , 0.000
*SET,DISPLACEMENT(1,1,1) , 0
*SET,DISPLACEMENT(2,0,1) , 0.001
*SET,DISPLACEMENT(2,1,1) , 0.164019197
*SET,DISPLACEMENT(3,0,1) , 0.002
*SET,DISPLACEMENT(3,1,1) , 0.269919117
*SET,DISPLACEMENT(4,0,1) , 0.003
*SET,DISPLACEMENT(4,1,1) , 0.334248561
*SET,DISPLACEMENT(5,0,1) , 0.004
*SET,DISPLACEMENT(5,1,1) , 0.369125834
*SET,DISPLACEMENT(6,0,1) , 0.005
*SET,DISPLACEMENT(6,1,1) , 0.3834005
*SET,DISPLACEMENT(7,0,1) , 0.006
*SET,DISPLACEMENT(7,1,1) , 0.383512748
*SET,DISPLACEMENT(8,0,1) , 0.007
*SET,DISPLACEMENT(8,1,1) , 0.374128876
*SET,DISPLACEMENT(9,0,1) , 0.008
*SET,DISPLACEMENT(9,1,1) , 0.358611011
*SET,DISPLACEMENT(10,0,1) , 0.009
*SET,DISPLACEMENT(10,1,1) , 0.339364147
*SET,DISPLACEMENT(11,0,1) , 0.01
*SET,DISPLACEMENT(11,1,1) , 0.318092373
*SET,DISPLACEMENT(12,0,1) , 0.011
*SET,DISPLACEMENT(12,1,1) , 0.295987916
*SET,DISPLACEMENT(13,0,1) , 0.012
*SET,DISPLACEMENT(13,1,1) , 0.273870489
*SET,DISPLACEMENT(14,0,1) , 0.013
*SET,DISPLACEMENT(14,1,1) , 0.252289882
*SET,DISPLACEMENT(15,0,1) , 0.014
*SET,DISPLACEMENT(15,1,1) , 0.231601387
*SET,DISPLACEMENT(16,0,1) , 0.015
*SET,DISPLACEMENT(16,1,1) , 0.212021164
*SET,DISPLACEMENT(17,0,1) , 0.016
*SET,DISPLACEMENT(17,1,1) , 0.193666771
*SET,DISPLACEMENT(18,0,1) , 0.017
*SET,DISPLACEMENT(18,1,1) , 0.176586777
*SET,DISPLACEMENT(19,0,1) , 0.018
*SET,DISPLACEMENT(19,1,1) , 0.160782307
*SET,DISPLACEMENT(20,0,1) , 0.019
*SET,DISPLACEMENT(20,1,1) , 0.146222654
*SET,DISPLACEMENT(21,0,1) , 0.02
*SET,DISPLACEMENT(21,1,1) , 0.132856531
*SET,DISPLACEMENT(22,0,1) , 0.021
*SET,DISPLACEMENT(22,1,1) , 0.120620123
*SET,DISPLACEMENT(23,0,1) , 0.022
*SET,DISPLACEMENT(23,1,1) , 0.10944279
*SET,DISPLACEMENT(24,0,1) , 0.023
*SET,DISPLACEMENT(24,1,1) , 0.099251058
*SET,DISPLACEMENT(25,0,1) , 0.024
*SET,DISPLACEMENT(25,1,1) , 0.089971367
*SET,DISPLACEMENT(26,0,1) , 0.025
*SET,DISPLACEMENT(26,1,1) , 0.081531914
*SET,DISPLACEMENT(27,0,1) , 0.026
*SET,DISPLACEMENT(27,1,1) , 0.073863843
*SET,DISPLACEMENT(28,0,1) , 0.027
*SET,DISPLACEMENT(28,1,1) , 0.066901974
*SET,DISPLACEMENT(29,0,1) , 0.028
*SET,DISPLACEMENT(29,1,1) , 0.060585195
*SET,DISPLACEMENT(30,0,1) , 0.029
*SET,DISPLACEMENT(30,1,1) , 0.054856634
*SET,DISPLACEMENT(31,0,1) , 0.030
*SET,DISPLACEMENT(31,1,1) , 0.049663659
*SET,DISPLACEMENT(32,0,1) , 0.031
*SET,DISPLACEMENT(32,1,1) , 0.044957778
*SET,DISPLACEMENT(33,0,1) , 0.032
*SET,DISPLACEMENT(33,1,1) , 0.040694475
*SET,DISPLACEMENT(34,0,1) , 0.033
*SET,DISPLACEMENT(34,1,1) , 0.036832993
*SET,DISPLACEMENT(35,0,1) , 0.034
*SET,DISPLACEMENT(35,1,1) , 0.0333361
*SET,DISPLACEMENT(36,0,1) , 0.035
*SET,DISPLACEMENT(36,1,1) , 0.030169847
*SET,DISPLACEMENT(37,0,1) , 0.036
*SET,DISPLACEMENT(37,1,1) , 0.027303323
*SET,DISPLACEMENT(38,0,1) , 0.037
*SET,DISPLACEMENT(38,1,1) , 0.024708414
*SET,DISPLACEMENT(39,0,1) , 0.038
*SET,DISPLACEMENT(39,1,1) , 0.022359576
*SET,DISPLACEMENT(40,0,1) , 0.039
*SET,DISPLACEMENT(40,1,1) , 0.020233618
*SET,DISPLACEMENT(41,0,1) , 0.040
*SET,DISPLACEMENT(41,1,1) , 0.018309495
*SET,DISPLACEMENT(42,0,1) , 0.041
*SET,DISPLACEMENT(42,1,1) , 0.016568124
*SET,DISPLACEMENT(43,0,1) , 0.042
*SET,DISPLACEMENT(43,1,1) , 0.014992205
*SET,DISPLACEMENT(44,0,1) , 0.043
*SET,DISPLACEMENT(44,1,1) , 0.013566061
*SET,DISPLACEMENT(45,0,1) , 0.044
*SET,DISPLACEMENT(45,1,1) , 0.012275489
*SET,DISPLACEMENT(46,0,1) , 0.045
*SET,DISPLACEMENT(46,1,1) , 0.011107626
*SET,DISPLACEMENT(47,0,1) , 0.046
*SET,DISPLACEMENT(47,1,1) , 0.01005082
*SET,DISPLACEMENT(48,0,1) , 0.047
*SET,DISPLACEMENT(48,1,1) , 0.009094525
*SET,DISPLACEMENT(49,0,1) , 0.048
*SET,DISPLACEMENT(49,1,1) , 0.00822919
*SET,DISPLACEMENT(50,0,1) , 0.049
*SET,DISPLACEMENT(50,1,1) , 0.00744617
*SET,DISPLACEMENT(51,0,1) , 0.050
*SET,DISPLACEMENT(51,1,1) , 0.006737641
*SET,DISPLACEMENT(52,0,1) , 0.051
*SET,DISPLACEMENT(52,1,1) , 0.00609652
*SET,DISPLACEMENT(53,0,1) , 0.052
*SET,DISPLACEMENT(53,1,1) , 0.005516397
*SET,DISPLACEMENT(54,0,1) , 0.053
*SET,DISPLACEMENT(54,1,1) , 0.00499147
*SET,DISPLACEMENT(55,0,1) , 0.054
*SET,DISPLACEMENT(55,1,1) , 0.004516489
*SET,DISPLACEMENT(56,0,1) , 0.055
*SET,DISPLACEMENT(56,1,1) , 0.004086703
*SET,DISPLACEMENT(57,0,1) , 0.056
*SET,DISPLACEMENT(57,1,1) , 0.003697813
*SET,DISPLACEMENT(58,0,1) , 0.057
*SET,DISPLACEMENT(58,1,1) , 0.003345928
*SET,DISPLACEMENT(59,0,1) , 0.058
*SET,DISPLACEMENT(59,1,1) , 0.003027527
*SET,DISPLACEMENT(60,0,1) , 0.059
*SET,DISPLACEMENT(60,1,1) , 0.002739424
*SET,DISPLACEMENT(61,0,1) , 0.060
*SET,DISPLACEMENT(61,1,1) , 0.002478737
*SET,DISPLACEMENT(62,0,1) , 0.061
*SET,DISPLACEMENT(62,1,1) , 0.002242856
*SET,DISPLACEMENT(63,0,1) , 0.062
*SET,DISPLACEMENT(63,1,1) , 0.002029422
*SET,DISPLACEMENT(64,0,1) , 0.063
*SET,DISPLACEMENT(64,1,1) , 0.001836299
*SET,DISPLACEMENT(65,0,1) , 0.064
*SET,DISPLACEMENT(65,1,1) , 0.001661553
*SET,DISPLACEMENT(66,0,1) , 0.065
*SET,DISPLACEMENT(66,1,1) , 0.001503436
*SET,DISPLACEMENT(67,0,1) , 0.066
*SET,DISPLACEMENT(67,1,1) , 0.001360366
*SET,DISPLACEMENT(68,0,1) , 0.067
*SET,DISPLACEMENT(68,1,1) , 0.00123091
*SET,DISPLACEMENT(69,0,1) , 0.068
*SET,DISPLACEMENT(69,1,1) , 0.001113774
*SET,DISPLACEMENT(70,0,1) , 0.069
*SET,DISPLACEMENT(70,1,1) , 0.001007784
*SET,DISPLACEMENT(71,0,1) , 0.070
*SET,DISPLACEMENT(71,1,1) , 0.000911881

outres,all,all
SOLVE
FINISH

/POST26
NSOL,2,547,U,Z,UZ1
PRVAR,2
FINISH