Numerical characterisation of nonlinear stiffness properties of pre-stressed vibration isolation mounts

Auteurs-es

  • Lei Jiang Martec Limited, 400-1888 Brunswick Street, Halifax, NS, B3J 3J8, Canada
  • David Stredulinsky Martec Limited, 400-1888 Brunswick Street, Halifax, NS, B3J 3J8, Canada
  • Jeff Szabo Martec Limited, 400-1888 Brunswick Street, Halifax, NS, B3J 3J8, Canada
  • Michael W. Chernuka Martec Limited, 400-1888 Brunswick Street, Halifax, NS, B3J 3J8, Canada

Mots-clés :

Computer simulation, Computer software, Degrees of freedom (mechanics), Elastic moduli, Finite element method, Poisson ratio, Prestressing, Strain, Stress concentration, Vibrations (mechanical), Viscoelasticity, Nonlinear stiffness, Vibration isolation mounts

Résumé

Numerical characterisation of nonlinear stiffness properties of pre-stressed vibration isolation mounts was presented. A computational procedure was developed to evaluate the condensed stiffness matrix of vibration isolators required by the vibration of viscoelastic and elastic structures (VVES) program. The procedure was based on a nonlinear finite element program which is able to handle complicated mount geometry and nonlinear effect associated with the static pre-loading. Three practical vibration isolation mount structures were analyzed and satisfactory numerical results were obtained.

Fichiers supplémentaires

Publié-e

2002-09-01

Comment citer

1.
Jiang L, Stredulinsky D, Szabo J, Chernuka MW. Numerical characterisation of nonlinear stiffness properties of pre-stressed vibration isolation mounts. Canadian Acoustics [Internet]. 1 sept. 2002 [cité 19 févr. 2025];30(3):70-1. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1459

Numéro

Vol. 30 No. 3 (2002)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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