6.4.2. Single Point Response Spectrum Analysis on a Piping Structure with
Excitation along X, Y, and Z Directions
/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,
n,9,18.625,18.625
n,10,27.25,18.625
n,11,27.25,18.625,8.625
n,12,27.25,18.625,17.250
n,13,18.625,18.625,17.250
n,14,8.625,18.625,17.250
n,15,0.0,-80.00
n,16,27.25,-80.00
n,17,27.25,-80.00,17.250
n,18,0.0,-80.00,17.25
! *** Mesh of Straight Pipe: Tangent Elements
mat,1
type,1
secnum,1
en,1,15,1
en,2,1,7
en,3,7,6
en,4,6,5
en,5,5,4
en,6,4,18
en,7,16,2
en,8,2,10
en,9,10,11
en,10,11,12
en,11,12,3
en,12,3,17
en,13,12,13
en,14,13,14
en,15,14,5
en,16,7,8
en,17,8,9
en,18,9,10
! *** Mass Elements
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
Example Spectrum Analysis (Command or Batch Method)
