Analysis of an Asymmetrical Bridle Towline Model to Stabilise Towing Performance of a Towed Ship
DOI:
https://doi.org/10.11113/jt.v66.2502Keywords:
Asymmetrical bridle towline, tow angle, tow point, slewing motion, towed shipAbstract
This paper addresses an asymmetrical bridle towline model as a feasible solution model to stabilize towing performance of a towed ship. The basic thinking behind the approach adopted, is to deal with a better towing stability than employing the typical towline model1. Several towing parameters which may affect a towed ship motion behaviour i.e., tow angle and tow point position, are investigated theoretically. The nonlinear numerical time-domain simulation showed that the increase of towing angle up to 30 degrees and shifting tow point from 0.5 to 0.8 resulted in remarkable reduction in slewing motion of the unstable towed ship and the towline tension, which enhances effectively her towing stability.
References
Fitriadhy, A., Yasukawa, H. 2011. Course Stability of a Ship Towing System. Ship Technology Research Schiffstechnik. 58: 4–24.
Sisong, Y, and Genyu, H. 1996. Dynamic Performance of Towing System-Simulation and Model Experiment. Trans. IEEE. 1: 216–230.
Yasukawa, H., Hirata, N., Nakamura, N., and Matsumoto, Y. 2006. Simulations of Slewing Motion of a Towed Ship. Journal of the Japan Society of Naval Architects and Ocean Engineers. 4: 137–14.
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