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Optimisation of ride control operation to reduce motions and loads of high-speed catamarans


AlaviMehr, J and Davis, MR and Holloway, DS and Lavroff, J and Thomas, GA, Optimisation of ride control operation to reduce motions and loads of high-speed catamarans, 14th International Conference on Fast Sea Transportation, 27-29 September 2017, Nantes, France, pp. 215-222. (2017) [Non Refereed Conference Paper]

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This paper considers the optimisation of a ride control system based on a variety of criteria including motions, global loads and slamming. The closed loop performance of a model scale ride control system fitted to a 2.5 m hydroelastic segmented model of a 112 m INCAT catamaran was tank tested using several active feedback control modes and performance was compared to the bare hull responses at two wave heights and a wide range of wave encounter frequencies. Of the feedback algorithms tested, the nonlinear pitch control mode of operation was found almost universally to give the best results, producing reductions of up to 70% in pitch, 40% in vertical bow accelerations, 90% in peak slamming force, 75% in slam induced bending moment, 40% in slam impulse and 90% in total strain energy imparted to hull whipping vibration.

Item Details

Item Type:Non Refereed Conference Paper
Keywords:motion control, high-speed catamarans, wave slamming, motions and loads
Research Division:Engineering
Research Group:Mechanical engineering
Research Field:Mechanical engineering not elsewhere classified
Objective Division:Transport
Objective Group:Water transport
Objective Field:Water transport not elsewhere classified
UTAS Author:AlaviMehr, J (Dr Javad Mehr)
UTAS Author:Davis, MR (Professor Michael Davis)
UTAS Author:Holloway, DS (Associate Professor Damien Holloway)
UTAS Author:Lavroff, J (Dr Jason Ali-Lavroff)
ID Code:121692
Year Published:2017
Deposited By:Engineering
Deposited On:2017-10-11
Last Modified:2017-10-11

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