A method is presented to evaluate the response of vertically vibrating machines placed on large, flexible, elastically-supported slabs. While the deflection problem is treated on the assumptions of the Hertz theory (i.e. linear, elastic spring supports-the Winkler subgrade), the theory of the elastic half-space is used to relate its material deformation parameters to the unit spring reaction of the subgrade. A model of the vibrating system is constructed, based on suitable modifications of the theory of vibrating discs on an elastic half-space, and its response, in analogy with a simple resonator, is determined. Concerning the applied unbalanced force, two cases are considered, its amplitude being either constant of frequency-dependent. The material parameters required for evaluation, including some relevant empirical data, are briefly discussed. Order from BSRA as No. 51,071.

  • Availability:
  • Corporate Authors:

    Institution of Structural Engineers

    11 Upper Belgrave Street
    London,   United Kingdom  SW1X 8BH
  • Authors:
    • Alpan, I
    • Leshchinsky, D
  • Publication Date: 1979-3

Media Info

  • Features: References;
  • Pagination: p. 1
  • Serial:
    • Structural Engineer
    • Volume: 57B
    • Publisher: Institution of Structural Engineers
    • ISSN: 1466-5123

Subject/Index Terms

Filing Info

  • Accession Number: 00196474
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Aug 15 1979 12:00AM