Procedures for Early-Stage Naval Ship Design Evaluation of Dynamic Stability: Influence of the Wave Crest

Abstract

A method is presented to assess stability changes in waves in early-stage ship design. The method is practical: the calculations can be completed quickly and can be applied as soon as lines are available. The intended use of the described method is for preliminary analysis. If stability changes that result in large roll motion are indicated early in the design process, this permits planning and budgeting for direct assessments using numerical simulations and/or model experiments. The main use of the proposed method is for the justification for hull form shape modification or for necessary additional analysis to better quantify potentially increased stability risk. The method is based on the evaluation of changing stability in irregular seas and can be applied to any type of ship. To demonstrate the robustness of the method, results for ten naval ship types are presented and discussed. The proposed method is shown to identify ships with known risk for large stability changes in waves.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2010
Accession Number
ADA522821

Entities

People

  • Christopher C. Bassler
  • Vadim Belenky

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

DTIC Thesaurus Topics

  • Buoyancy
  • Computational Science
  • Engineering
  • Failure Mode And Effect Analysis
  • Hulls (Marine)
  • Intact Stability
  • Metacentric Height
  • Naval Architecture
  • Navy
  • Patrol Craft
  • Random Variables
  • Ship Design
  • Ship Stability
  • Simulations
  • Stochastic Processes
  • Test And Evaluation
  • Vulnerability

Readers

  • Life Cycle Cost Analysis
  • Marine Hydrodynamics
  • Regression Analysis.