摘要：A multi-body wave energy converter,consisting of three floats and modeled as a two body problem,is optimised to enhance its mean absorbed power using the response Surface Optimisation *** optimisation focuses on two input parameters namely;the floats’diameters and the spacing,in various sea states and at different PTO dampings.A frequency domain analysis is performed for the WEC model scaled at 1∶50 in regular and irregular *** results are validated against numerical and experimental data available in the *** show good agreement against the unmoored model’s added mass,radiation damping,response amplitude operator,mean absorbed power and,capture width *** sea states selected for optimisation are represented by a JONSWAP wave spectrum with,a range of significant wave heights(0.04 to 0.06 m)and a range of peak periods(0.8 to 1.3 s).This corresponds to(2 to 3 m)significant wave heights and(5.6 to 9.2 s)peak periods in full *** show that the optimised WEC model demonstrates good and consistent enhancement of its mean absorbed power and capture width ratio.