ID 113431
Title Alternative
Analytical methods to predict the surf-riding threshold and the wave-blocking threshold
Author
Maki, Atsuo Kobe University|Ministry of Defence
Umeda, Naoya Osaka University
Renilson, Martin Australian Maritime College|Higher Colleges of Technology
Keywords
Surf-riding
Wave-blocking
Analytical formula
Nonlinear dynamics
Content Type
Journal Article
Description
For the safe design and operation of high-speed craft it is important to predict their behaviour in waves. There still exists a concern, however, in the framework of the International Maritime Organization (IMO) with regards to the stability criteria. In particular, for high-speed craft, the higher limit of operational speed resulting in wave blocking as well as the lower limit known as the surf-riding threshold are important features. Therefore, by applying the polynomial approximation to wave induced surge force including the nonlinear surge equation, an analytical formula in order to predict the wave blocking and surf-riding thresholds is proposed. Comparative results of the surf-riding threshold and wave blocking threshold utilizing the proposed formula and the numerical bifurcation analysis indicate fairly good agreement. In addition, previously proposed analytical formulae are inclusively examined. It is concluded that the analytical formulae based on a continuous piecewise linear approximation and Melnikov’s method agrees well with the wave blocking threshold and the surf-riding threshold obtained by the numerical bifurcation analysis and the free-running model experiment. As a result, it is considered that these two calculation methods could be recommended for the early design stage tool for avoiding broaching and bow-diving.
Journal Title
Journal of Marine Science and Technology
ISSN
09484280
14378213
NCID
AA11098465
Publisher
The Japan Society of Naval Architects and Ocean Engineers|Springer Japan
Volume
19
Issue
4
Start Page
415
End Page
424
Published Date
2014-02-27
Remark
The final publication is available at www.springerlink.com
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Author
departments
Center for Administration of Information Technology