Ince-Strutt stability charts for ship parametric roll resonance in irregular waves

Zhang, X., Yang, H. , Xiao, F. and Xu, P.-j. (2017) Ince-Strutt stability charts for ship parametric roll resonance in irregular waves. China Ocean Engineering, 31(4), pp. 447-457. (doi:10.1007/s13344-017-0051-0)

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Abstract

Ince-Strutt stability chart of ship parametric roll resonance in irregular waves is conducted and utilized for the exploration of the parametric roll resonance in irregular waves. Ship parametric roll resonance will lead to large amplitude roll motion and even wreck. Firstly, the equation describing the parametric roll resonance in irregular waves is derived according to Grim’s effective theory and the corresponding Ince-Strutt stability charts are obtained. Secondly, the differences of stability charts for the parametric roll resonance in irregular and regular waves are compared. Thirdly, wave phases and peak periods are taken into consideration to obtain a more realistic sea condition. The influence of random wave phases should be taken into consideration when the analyzed points are located near the instability boundary. Stability charts for different wave peak periods are various. Stability charts are helpful for the parameter determination in design stage to better adapt to sailing condition. Last, ship variables are analyzed according to stability charts by a statistical approach. The increase of the metacentric height will help improve ship stability.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Yang, Dr Hezhen
Authors: Zhang, X., Yang, H., Xiao, F., and Xu, P.-j.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:China Ocean Engineering
Publisher:Springer
ISSN:0890-5487
ISSN (Online):0890-5487

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