sed,1! X-direction base excitation
freq,3.1,4,5,5.8,7.1,8.8,11,14.1,17.2
freq,35,40,588
sv,0.02,400,871,871,700,1188,1188,440,775,775
sv,0.02,380,348.6,145
solve
sed,0
sed,,1! Y-direction base excitation
freq
freq,3.1,4,5,5.8,7.1,8.8,11,14.1,17.2
freq,35,40,588
sv,0.02,266.7,580.7,580.7,466.7,792,792,293.3333,516.7,516.7
sv,0.02,253.3,232.4,96.7
solve
sed,,0
sed,,,1! Z-direction base excitation
freq
freq,3.1,4,5,5.8,7.1,8.8,11,14.1,17.2
freq,35,40,588
sv,0.02,400,871,871,700,1188,1188,440,775,775
sv,0.02,380,348.6,145
solve
sed,,,0
fini
/post1
/input,,mcom
prdi
finish
6.4.3. Single Point Response Spectrum Analysis on a Piping Structure with
Excitation along X, Y, and Z Directions Separately by Reusing the Existing
Mode File
/prep7
et,1,pipe288,,,3! PIPE288 using cubic shape function
et,2,mass21! MASS21
! *** Section and Real Constants
sectype,1,pipe
secdata,2.37500000,0.15400000,14
r,2,0.447000518e-01,0.447000518e-01,0.447000518e-01,0.0,0.0,0.0
r,3,0.447000518e-01,0.447000518e-01,0.447000518e-01,0.0,0.0,0.0
r,4,0.447000518e-01,0.447000518e-01,0.447000518e-01,0.0,0.0,0.0
r,5,0.447000518e-01,0.447000518e-01,0.447000518e-01,0.0,0.0,0.0
r,6,0.432699275e-01,0.432699275e-01,0.432699275e-01,0.0,0.0,0.0
r,7,0.893995859e-02,0.893995859e-02,0.893995859e-02,0.0,0.0,0.0
r,8,0.432699275e-01,0.432699275e-01,0.432699275e-01,0.0,0.0,0.0
r,9,0.893995859e-02,0.893995859e-02,0.893995859e-02,0.0,0.0,0.0
r,10,0.893995859e-02,0.893995859e-02,0.893995859e-02,0.0,0.0,0.0
r,11,0.432699275e-01,0.432699275e-01,0.432699275e-01,0.0,0.0,0.0
r,12,0.893995859e-02,0.893995859e-02,0.893995859e-02,0.0,0.0,0.0
r,13,0.432699275e-01,0.432699275e-01,0.432699275e-01,0.0,0.0,0.0
r,14,0.893995859e-02,0.893995859e-02,0.893995859e-02,0.0,0.0,0.0
r,15,0.893995859e-02,0.893995859e-02,0.893995859e-02,0.0,0.0,0.0
! *** Nodes
n,1,0.0,-30.00
n,2,27.25,-30.00
n,3,27.25,-30.00,17.250
n,4,0.0,-30.00,17.250
n,5,0.0,18.625,17.250
n,6,0.0,18.625,8.625
n,7,0.0,18.625
n,8,8.625,18.625,
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
Example Spectrum Analysis (Command or Batch Method)
