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MCA Consultants Engineering & Design

Spectral Fatigue Analysis

FEA-based fatigue life assessment of ship structure at global and local levels using over 500 load cases and hydrodynamic hull-form simulation.

Description

MCA performs FEA-based spectral fatigue analysis to assess the fatigue life of ship structure at global and local levels. The method has been applied to tankers and container ships.

Method

  • A spectrum of over 500 load cases covering wave height, wave heading, draft and non-linear waterline effects
  • Measured or Class-defined weather data
  • Loads derived from hull-form simulation in hydrodynamic software
  • Full-ship models capture global loads, which are applied to local detail models

Results

  • Fatigue life predictions for as-built structure
  • Fatigue life predictions for potential modifications
  • Input to structural modification design and inspection planning

Specifications

Load casesover 500

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