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Slamming and Whipping of Wave-Piercing Catamarans
conference contribution
posted on 2023-05-23, 04:31 authored by Michael DavisMichael Davis, Giles Thomas, Damien HollowayDamien Holloway, Jason Ali-LavroffJason Ali-Lavroff, Amin, WAI, Matsubara, S, Roberts, TWavelet analysis identifies slamming events during sea trials. Maximum loads, load impulses and energy imparted to the structure by slams have been evaluated. A segmented hydro-elastic model has been developed to simulate the main whipping mode, elastic links in the model facilitating measurement of bending moments and determination of slam loads. Slams of up to 2200 tonnes peak force can occur when the wet deck arches between the main hulls and centre bow fill, imparting impulses of up to 938 tonne seconds and 3.5 MJ of strain energy. Energy is transferred to the whipping mode which has a damping ratio in the range 0.02 to 0.06 depending upon forward speed.
History
Publication title
5th International Conference on Hydroelasticity in Marine TechnologyEditors
Professor P.Temarel and Dr. S.E.HirdarisPagination
on CDDepartment/School
School of EngineeringPublisher
University of SouthamptonPlace of publication
SouthamptonEvent title
Hydroelasticity in Marine Technology International ConferenceEvent Venue
Southampton, UKDate of Event (Start Date)
2009-09-08Date of Event (End Date)
2009-09-10Repository Status
- Restricted