Fourier Hull Fatigue Assessment Method’s Proposing and Software Development

Abstract

In this paper, based on the spectral analysis and the strain energy theory, the systematic errors of Rain-flow Counting Method have been quantitatively analyzed, from which a Fourier Counting Method is put forward. And according to this new method, software has been developed combined with sampling data of the real container ship via rigorous theoretical derivation and compact modular design, which has certain theoretical innovation significance and practical value.

Keywords

• Rain-flow counting method
• Strain energy
• Stress load spectrum
• Fourier counting method
• N-S curve.