Data Bank > Computer program services
last modified: 01-APR-1977 | catalog | categories | new | search |

NEA-0465 FRAMES.

FRAMES, Vibration Analysis of Spaceframes with Lumped Mass Distribution

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, FEATURES, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES
[ top ]
1. NAME OR DESIGNATION OF PROGRAM:  FRAMES.
[ top ]
2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.
Program name Package id Status Status date
FRAMES NEA-0465/01 Tested 01-APR-1977

Machines used:

Package ID Orig. computer Test computer
NEA-0465/01 ICL 4/70 ICL 4/70
[ top ]
3. NATURE OF PHYSICAL PROBLEM SOLVED

The program calculates forced responses, natural frequencies and normal modes of a skeletal space  frame with its mass distribution lumped on to selected nodal points.
[ top ]
4. METHOD OF SOLUTION

The framework is solved by applying displacement methods and eigenvalue routines to stiffness and mass matrices.
[ top ]
5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The program is limited to

100 nodes
78 inertial degrees of freedom
100 different member types
200 specified nodal displacements.
[ top ]
6. TYPICAL RUNNING TIME

For a structure with 100 nodes and 78 inertial degrees of freedom, the calculation of 14 natural frequencies and normal modes requires 48 minutes of machine time.
[ top ]
7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
[ top ]
8. RELATED AND AUXILIARY PROGRAMS

SPANDE, a general purpose program for the analysis of spaceframes and pipeworks.
[ top ]
9. STATUS
Package ID Status date Status
NEA-0465/01 01-APR-1977 Tested at NEADB
[ top ]
10. REFERENCES

- D.A. Jobson and J.R. Litherland:
  'Vibration Analysis by Computer.  A User's Guide to Programs for the Natural and Forced Oscillations of Skeletal Structures'
  TRG Report 1919(R). 1969.
[ top ]
11. MACHINE REQUIREMENTS

(1) Core:  176 kbytes
(2) Data volumes: 6 disc files on 1 disc.
[ top ]
12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0465/01 FORTRAN-IV
[ top ]
13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  RIOS III of ICL 4-70.
[ top ]
14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
[ top ]
15. NAME AND ESTABLISHMENT OF AUTHOR

        D.A. Jobson and J.R. Litherland
        Risley
        United Kingdom
[ top ]
16. MATERIAL AVAILABLE
NEA-0465/01
File name File description Records
NEA0465_01.001 FRAMES SOURCE - FORTRAN IV EBCDIC 5859
NEA0465_01.002 FORTRAN SUBROUTINE LIBRARY 1781
NEA0465_01.003 USERCODE SUBROUTINE LIBRARY 614
NEA0465_01.004 SAMPLE PROBLEM 11
NEA0465_01.005 OVERLAY AND RUN CARDS 84
[ top ]
17. CATEGORIES
  • I. Deformation and Stress Distributions, Structural Analysis and Engineering Design Studies

Keywords: mechanical vibrations, stress analysis.