Abstract
Combining high precision numerical analysis methods with optimization algorithms to make a systematic exploration of a design space has become an important topic in the modern design methods. During the design process of an underwater glider’s flying-wing structure, a surrogate model is introduced to decrease the computation time for a high precision analysis. By these means, the contradiction between precision and efficiency is solved effectively. Based on the parametric geometry modeling, mesh generation and computational fluid dynamics analysis, a surrogate model is constructed by adopting the design of experiment (DOE) theory to solve the multi-objects design optimization problem of the underwater glider. The procedure of a surrogate model construction is presented, and the Gaussian kernel function is specifically discussed. The Particle Swarm Optimization (PSO) algorithm is applied to hydrodynamic design optimization. The hydrodynamic performance of the optimized flying-wing structure underwater glider increases by 9.1%.
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Foundation item: This work was financially supported by the National Natural Science Foundation of China (Grant No. 61233013).
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Wang, Zy., Yu, Jc., Zhang, Aq. et al. Parametric geometric model and hydrodynamic shape optimization of a flying-wing structure underwater glider. China Ocean Eng 31, 709–715 (2017). https://doi.org/10.1007/s13344-017-0081-7
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DOI: https://doi.org/10.1007/s13344-017-0081-7