APPLICATION OF STRUCTURAL EIGENVALUE MODIFICATION METHODS TO LINEAR BUCKLING PROBLEMS AND SUBSTRUCTURED MODELS

Authors
  1. Baldwin, J.F.
  2. Hutton, S.G.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);British Columbia Univ, Vancouver BC (CAN) Dept of Mechanical Engineering
Abstract
The report is divided into two sections; the first considers the applicability of the eigenvalue modification techniques used in the structural modification program STRUM to buckling problems, and the second considers the desirability of extending the STRUM program in order to utilize the substructure/superelement capabilities of the VAST finite element analysis system. For the buckling problem, a computer program BOMS for predicting the effects of structural modifications on the buckling characteristics of frame structures has been developed which used these techniques. The program interfaces to the VAST system. The results from a series of test problems are presented and these are used to discuss the suitability and limitations of this extension to the buckling problem particularly in terms of the application to more complicated problems involving larger structures and other elements. TRUNCATED
Report Number
DREA-CR-87-447 — Contractor Report (Final)
Date of publication
15 Jul 1987
Number of Pages
40
DSTKIM No
88-02001
CANDIS No
55231
Format(s):
Microfiche filmed at DSIS;Originator's fiche received by DSIS;Hardcopy

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