Validation of SHIPMO7 and PRECAL with the CPF Hydroelastic Model

Abstract

This report gives results of an extensive validation of DND's strip theory program SHIPMO7 and the three-dimensional ship motion code PRECAL developed by Cooperative Research Ships. Ship motion and sea load predictions are compared with results for the CPF hydroelastic model, which was tested in regular and irregular waves in both head and oblique seas. In general, both codes give excellent agreement for ship motions and reasonable agreement for sea loads. In irregular head seas, PRECAL predicts over vertical bending moment at midships by an average of 9 percent, which is superior to the average prediction over by SHIPMO7 of 25 percent.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1997
Accession Number
ADA341951

Entities

People

  • Dann L. Chow
  • Kevin A. Mctaggart

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Agreements
  • Bending Moments
  • Center Of Gravity
  • Classification
  • Experimental Data
  • Froude Number
  • Geometry
  • Measurement
  • Metacentric Height
  • Model Tests
  • Research Ships
  • Resonant Frequency
  • Security
  • Ship Motion
  • Ships
  • Three Dimensional
  • Validation

Readers

  • Marine Hydrodynamics