DEVELOPMENT OF RANDOM RESPONSE ANALYSIS CAPABILITY FOR THE VAST FINITE ELEMENT PROGRAM - PHASE I

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Authors
  1. Orisamolu, I.R.
  2. Norwood, M.E.
  3. Chernuka, M.W.
Corporate Authors
MARTEC Ltd, Halifax NS (CAN);Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The report contains a description of the work done in the first phase of a contract awarded by the Defence Research Establishment Atlantic (DREA) for the provision of an in-house random response analysis capability. A concise description of the theoretical basis of the finite element random vibration analysis methodology is given. A description of available procedures for computing the assembled cross-spectral density matrix for a finite element model of structures excited by distributed random loads is also presented. Special emphasis is given to marine structures subjected to random pressure loads induced by random ocean waves. Computer programs for performing random vibration analysis developed during the course of this work have been incorporated into the VAST finite element program as a new module called RANVIB. A suite of computer programs for the generation of random loads for ship structures were also developed. TRUNCATED
Report Number
MARTEC-TR-91-2 — Contractor Report; Technical Report
Date of publication
15 Mar 1991
Number of Pages
128
DSTKIM No
92-00751
CANDIS No
103645
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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