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SOME STUDIES ON FREE VIBRATION ANALYSIS OF CYCLIC SYMMETRIC STRUCTURES USING SUBSPACE METHOD

P. BALASUBRAMANIAN (Computer Aided Design Group, National Informatics Centre, A Block, CGO Complex, Lodhi Road, New Delhi‐110003, India)
J.G. JAGADEESH (Computer Aided Design Group, National Informatics Centre, A Block, CGO Complex, Lodhi Road, New Delhi‐110003, India)
H.K. SUHAS (Computer Aided Design Group, National Informatics Centre, A Block, CGO Complex, Lodhi Road, New Delhi‐110003, India)
V. RAMAMURTI (Computer Aided Design Group, National Informatics Centre, A Block, CGO Complex, Lodhi Road, New Delhi‐110003, India)

Engineering Computations

ISSN: 0264-4401

Article publication date: 1 March 1993

76

Abstract

The free vibration analysis of cyclic symmetric structures is considered as a Hermitian eigenvalue problem in semi‐complex domain using subspace iteration method is presented. The trial vectors are selected using a modified Ritz vector scheme. A modified convergence criterion which gives true error estimates which is suited for clustered eigenvalue problems is presented. Also the effect of purification of trial vectors on convergence is considered.

Keywords

Citation

BALASUBRAMANIAN, P., JAGADEESH, J.G., SUHAS, H.K. and RAMAMURTI, V. (1993), "SOME STUDIES ON FREE VIBRATION ANALYSIS OF CYCLIC SYMMETRIC STRUCTURES USING SUBSPACE METHOD", Engineering Computations, Vol. 10 No. 3, pp. 279-286. https://doi.org/10.1108/eb023908

Publisher

:

MCB UP Ltd

Copyright © 1993, MCB UP Limited

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