Correlation of Wave Loads Predicted by the Extended SHIPMO Computer Program with Experiments.

Abstract

Wave loads predicted by the extended SHIPMO computer program were compared with experimental data in an attempt to assess the range of validity and to estimate the uncertainty of the predictions. In general, the agreement between theory and experiment was good for the vertical bending moment, but fair to poor for the horizontal bending moment. The predicted torsional moment was found to be in gross disagreement with the measured values in terms of both magnitude and trend. It was not possible to find any correlation of the pattern of the discrepancy between theory and experiment with the principal design characteristics, such as hull form or weight distribution. The present comparison shows that the prediction of ship motions in oblique seas needs to be further improved. Also, systematic model tests covering a wide range of the variables are required to assess the uncertainty of the measurement, and hence, to determine the range of confidence of the predicted loads more clearly. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1985
Accession Number
ADA161961

Entities

People

  • S. Ando

Organizations

  • Defence Research and Development Canada

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Agreements
  • Amplitude
  • Bending Moments
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Equations
  • Experimental Data
  • Frequency
  • Hulls (Marine)
  • Measurement
  • Model Tests
  • Moment Of Inertia
  • Naval Architecture
  • Ship Hulls
  • Ship Motion

Readers

  • Fluid Dynamics.
  • Marine Hydrodynamics