The objective of the work is to demonstrate that scaling laws for slamming impact pressures which have previously been identified from model data are applicable to full-scale ships. The approach taken has been to compare impact pressure data from full-scale trials with model data on the basis of the scaling laws. Scale effects which may cause errors when extrapolating model results for impact pressure to full-scale have been evaluated. Results for ratio of absolute impact pressure to ambient pressure have been compared for full-scale trials and model tests on the basis of an impact velocity ratio Vo/Vl for cases of similar structural characteristics. A proposed design basis for estimation of peak pressures for slamming impacts by use of model results and a relative velocity Vo estimate based on a median value of a possible range of Vo is shown to result in conservative predictions when compared to full-scale measurements. (Author)

  • Corporate Authors:

    MPR Associates, Incorporated

    1140 Connecticut Avenue, NW
    Washington, DC  United States 
  • Authors:
    • Sellars, F H
  • Publication Date: 1972-8

Media Info

  • Pagination: 47 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00043227
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: MPR-351 Final Rpt
  • Contract Numbers: N00014-71-C-0045
  • Files: TRIS
  • Created Date: Apr 6 1973 12:00AM