THE VARIENT OF RAYLEIGH'S METHOD APPLIED TO TIMOSHENKO BEAMS ON WINKLER-PASTERNAK FOUNDATIONS. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1 - 3

The determination of the fundamental frequencies of timoshenko beams in a Winkler-Pasternak medium is presented. It is proposed the use of the variant of Rayleigh's method which allows an optimization of the approximate modal functions through a non-integer exponential parameter. The case under study gives rise to a two-variable problem. Numerical results are given for hinged-hinged and clamped-clamped beams of uniform and variable cross section. Comparisons with available exact values yield very good agreement. (Author/TRRL)

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  • Corporate Authors:

    AA Balkema

    P.O. Box 1675
    Rotterdam,   Netherlands  BR-3000
  • Authors:
    • Filipich, C P
    • Rosales, M B
  • Publication Date: 1988

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Filing Info

  • Accession Number: 00492643
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 90-6191-809-X
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1990 12:00AM