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Analysis of roll motion and stability of a fishing vessel in head seas

✍ Scribed by M.A. Santos Neves; N. Pérez; O. Lorca

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
251 KB
Volume
30
Category
Article
ISSN
0029-8018

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✦ Synopsis

The present paper describes an investigation on the relevance of parametric resonance for a typical fishing vessel in head seas. Results for different Froude numbers are discussed based on experimental, numerical and analytical studies.

The first region of resonance is investigated. Distinct wave amplitudes are considered. Some intense resonances are found to occur. The paper compares the experimental results with nonlinear time simulations of the roll motion. Very good agreement is found, even when large motions take place.

Finally, in order to analyze the experimental/numerical results, analytic consideration is given to distinct parameters affecting the dynamic process of roll amplification. The influence of heave, pitch, wave passage effect, speed and roll restoring characteristics are discussed.

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