Abstract
Currently, ship inner shell (SIS) design models which are being used widely in shipyards do not have good changeability. To improve the changeability of ship inner shell model and design efficiency, a new method for parametric design and optimization of ship inner shell is proposed. The method is based on the parametric expression model of different types of ship inner shell. The computing system of hold capacity is developed to calculate the floating status and stability. Furthermore, a parametric ship inner shell optimization model is established, including objective function for optimization, constraints, optimization model solving etc. The optimization objective is maximum hold capacity. The requirements and rules for ship inner shell design are made constraints. The particle swarm optimization (PSO) algorithm is improved to solve this optimization model. To evaluate the applicability of the proposed method, the correctness and efficiency of the method is verified through 2 ships. Finally, the sensitivity analysis procedure is adopted to estimate the influence of the value of the key calculation parameters in the optimization algorithm on the calculation process and results.
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