Multi-Objective Optimization Method in the Main Dimensions of High Performance Ship Based on Current EEDI

摘要

Current regulations on the Energy Efficiency Design Index (EEDI)have no clear description of the computation method for the indexassociated with high performance ships. As a supplement, this paperaims to bridge the gap by developing the calculation formula forcalculating the EEDI for these ships. Load capacity, ship speed andEEDI in the proposed EEDI formula are significantly affected by theship’s main dimensions. This leads to the need of multi-objectiveoptimizations. To meet the need, the genetic algorithm was used toobtain the pareto frontier. Fifteen groups of optimized results weredetermined for further decision-making. The final optimal model thatdetermines the weight of different indicators was established by usingthe rigid least square method. The optimum scheme showed an increasein the load capacity and speed by 16.41% and 0.36%, respectively. Inaddition, the EEDI was reduced by 14.42% compared to the target ship.