last modified: 01-MAR-1975 | catalog | categories | new | search |

NESC0542 PSA2

PSA-2, Stress Analysis, Thermal Expansion and Loads in Multi Anchor Piping System

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1. NAME OR DESIGNATION OF PROGRAM:  PSA2
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2. COMPUTERS
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Program name Package id Status Status date
PSA-2 NESC0542/01 Tested 01-MAR-1975

Machines used:

Package ID Orig. computer Test computer
NESC0542/01 IBM 370 series IBM 370 series
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3. DESCRIPTION OF PROBLEM OR FUNCTION

PSA2 computes the reactions and stresses caused by thermal expansion and loads in a multi-anchor piping system which may contain loops and may be partially restrained at any point in any direction.
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4. METHOD OF SOLUTION

The linear equations for the statically indeterminate pipe system are set up by a generalization of Brock's  matrix method. By a systematic use of linear transforms, the matrix  of the system of linear equations can be obtained by incidence algebra in the form of a symmetric banded matrix.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:  Maximum of -, 36 sections
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6. TYPICAL RUNNING TIME:  1 to 3 minutes are required on a Model 50.
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7. UNUSUAL FEATURES OF THE PROGRAM

PSA2 takes into account -
   (a) elasticity of the attachment of the pipe to the foundation,
(b) restraints on pipe displacements by anchors and intermediate        partial constraints of linear type,
(c) given constant forces and moments acting upon the pipe        system,
   (d) thermal expansion,
   (e) any geometrical structure of the pipe system,
   (f) several cases of stressing per pipe system, and
   (g) both metric and English units.
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8. RELATED AND AUXILIARY PROGRAMS:
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9. STATUS
Package ID Status date Status
NESC0542/01 01-MAR-1975 Tested at NEADB
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10. REFERENCE:
NESC0542/01, included references:
     - B. H. Boonstra, A. N. Nickols, W. J. Huges and W. D. Gross;
       Pipe Stress Analysis Code, PSA 2, AI-64-MEMO-142 Revison 1.
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11. MACHINE REQUIREMENTS:  64K memory.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NESC0542/01 FORTRAN-IV
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:   OS/360.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

Function LOC must be user-supplied. It returns the address of its argument as an integer to the calling program.
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15. NAME AND ESTABLISHMENT OF AUTHOR

                 A. N. Nickols
                 Codes Coordinator
                 Atomics International
                 P. O. Box 309
                 Canoga Park, California  91304
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16. MATERIAL AVAILABLE
NESC0542/01
File name File description Records
NESC0542_01.001 SOURCE PROGRAM (F4) 1356
NESC0542_01.002 JCL 12
NESC0542_01.003 SAMPLE PROBLEM INPUT DATA 19
NESC0542_01.004 SAMPLE PROBLEM PRINTED OUTPUT 190
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17. CATEGORIES
  • I. Deformation and Stress Distributions, Structural Analysis and Engineering Design Studies

Keywords: pipes, stresses, thermal expansion.