APPLICATION OF TIME DOMAIN SHIP MOTION PREDICTIONS TO CAPSIZE RISK ANALYSIS

Authors
  1. McTaggart, K.A.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The technical memorandum presents a framework for coupling probabilistic methods with a time domain ship motion program for predicting the annual risk of capsize for a given ship design. The primary advantage of the proposed method over traditional stability criteria is that it models the dynamics of ship capsizing, thus giving a realistic estimate of the capsize risk of a proposed design. Input random variables include annual maximum significant wave height, effective wave steepness, ship heading, and ship speed. The probabilistic method has been used to evaluate the capsize risk for an example frigate design, and could be extended to determine capsize risk levels implied by present and proposed intact stability design criteria.
Report Number
DREA-TM-93-210 — Technical Memorandum
Date of publication
01 Sep 1993
Number of Pages
69
DSTKIM No
93-04745
CANDIS No
134586
Format(s):
Hardcopy;Originator's fiche received by DSIS

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