Objective function development, using design charts, to reflect ship seakeeping, resistance, and maneuverability influences

摘要

Identification of improved ship hull forms has previously been achieved using the Hooke & Jeeves search algorithm and a genetic algorithm. These studies were limited to balancing the needs of seakeeping (motions resulting from wave environment) and resistance. Since potential theory based hydrodynamics do not account for fluid separation and associated vortex generation, manoeuvrability characteristics will be determined using experimental data based regression formulae for the hydrodynamic loads of a manoeuvring ship. This paper examines the demands of seakeeping, resistance and manoeuvrability to appreciate the different conflicts and to identify a suitable objective function for ship design optimisation.