Control of Ship capsize in stern quartering seas.
White, Anthony S. and Gleeson, P T and Karamanoglu, Mehmet (2007) Control of Ship capsize in stern quartering seas. International Journal of Simulation Systems, Science & Technology., 8 (2). pp. 20-31. ISSN 1473-804X
This item is available in the Library Catalogue
A non-linear mathematical model for the roll-yaw behaviour of a ship is used to predict capsize of a small tanker which sank in the North Sea some years ago. This capsize problem was initially simulated on an analogue computer by the Danish Maritime Authorities as well as being tank tested. The problem was simulated using the digital package SIMULINK, which produced comparable results indicating instability in waves of just less than 3 m in height. Validation of the results is attempted and a discussion of possible improvements to the model is given. Simulated responses of the tanker with simple hydrodynamic fin stabilisers show that capsize could have been prevented by this means in waves up to 7 m in height. Active PID control using a simple full span elevon is used to show a factor of ten reduction in roll angle to much greater waves. This work is of use to ship designers illustrating that stability can be enhanced for a fraction of the cost of major redesign of the ship hull and can be tailored to load conditions.
|Research Areas:||School of Science and Technology > Computer and Communications Engineering|
School of Science and Technology > Design Engineering and Mathematics
|Deposited On:||05 Mar 2010 06:06|
|Last Modified:||07 Aug 2014 04:50|
Repository staff and depositor only: item control page
Full text downloads (NB count will be zero if no full text documents are attached to the record)
Downloads per month over the past year