Vibration isolation - exploring the foundations

Auteurs-es

  • H.M. Williamson Hugh Williamson Associates, Ottawa, Canada
  • J.C.S. Lai Hugh Williamson Associates, Ottawa, Canada
  • J. Dai Hugh Williamson Associates, Ottawa, Canada
  • C. Norwood Hugh Williamson Associates, Ottawa, Canada
  • Y. Li Hugh Williamson Associates, Ottawa, Canada

Mots-clés :

Mathematical models, Supports, Point mobility, Surface mobility

Résumé

The interaction between a large isolator and a supporting structure is examined. Large area contact can result in a mobility which is significantly different from measured or predicted point mobility. Surface mobility measurements can help avoid situations where poor isolation occurs in important frequency ranges due to high surface mobility in the foundation. The models used show that surface mobility is approximately equal to point mobility when the dimensions of the contact region are small compared to the governing wavelength in the supporting structure. Mobility changes significantly once the contact dimensions are of the order of, or larger than, the governing wavelength in the supporting structure.

Fichiers supplémentaires

Publié-e

1998-09-01

Comment citer

1.
Williamson H, Lai J, Dai J, Norwood C, Li Y. Vibration isolation - exploring the foundations. Canadian Acoustics [Internet]. 1 sept. 1998 [cité 22 juill. 2024];26(3):40-1. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1147

Numéro

Vol. 26 No. 3 (1998)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

Licence

Author Licensing Addendum

This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:

  1. Retained Rights: The Author(s) retain(s) the following rights:

    • The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
    • The right to use the Work in the Author's teaching activities and presentations.
    • The right to include the Work in a compilation for the Author's personal use, not for sale.

  2. Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.

  3. Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.

  4. No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.

  5. Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.

Articles les plus lus du,de la,des même-s auteur-e-s