Time domain non linear strip theory for ship motions

Fan, Y.T. and Wilson, P.A. (2004) Time domain non linear strip theory for ship motions. Royal Institution of Naval Architects Transactions A: International Journal of Maritime Engineering, 146, (3), 33-47. (doi:10.3940/rina.ijme.2004.a3.3404).


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A new implementation of strip theory is proposed based on the strip theory by Salvesen, et al. [1] and early work by
Westlake and Wilson [2]. Compared with traditional strip theory, the main difference is that the calculation is carried
out in the time domain. This makes it possible to cope with relatively large-amplitude motions and non-constant forward
speed problems.

At each time step, the exact underwater sections are extracted; the velocity potential is required to satisfythis instantaneous body boundary condition, therefore the added mass, damping coefficients and exciting forces are timevariant, which produce a non-linearity. The diffraction force is added to work ofWestlake and Wilson, and the results show the effect of diffraction force is significant.

Item Type: Article
Additional Information: IJME3404
ISSNs: 1479-8751 (print)
Related URLs:
Subjects: V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 22706
Date Deposited: 22 Mar 2006
Last Modified: 27 Mar 2014 18:12
URI: http://eprints.soton.ac.uk/id/eprint/22706

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