基于响应面法的船舶节能导管优化设计

Design optimization of ship energy-saving conduit based on response surface method

中文关键词: 节能导管；响应面法；优化设计  螺旋桨效率  二阶模型

英文关键词: energy-saving conduit  response surface method  design optimization  propeller efficiency  second order model

中文摘要:

      以一种水动力节能装置-经典伴流补偿导管为研究对象，建立节能导管的参数化模型，通过STAR-CCM+软件对附加节能导管的KP505螺旋桨进行水动力分析；以导管结构特征尺寸为设计参数，以螺旋桨效率提升比为响应参数，生成响应面模型；将螺旋桨效率提升比作为优化目标，将导管结构特征尺寸阈值作为约束条件，基于二阶响应面数学模型对导管进行结构优化设计，并对优化结果进行仿真验证，证明响应面模型的可靠性。结果表明，优化后导管的效率提升比增大了37.81%，说明构建的响应面模型对节能导管进行优化合理有效，可对其他类型的节能导管设计提供一定参考。

英文摘要:

      Taking a hydrodynamic energy-saving devices-classical wake equalizing duct as the research object, a parametric model of energy-saving duct is established. The hydrodynamic analysis of KP505 propeller with additional energy-saving duct is carried out by STAR-CCM + software. The response surface model is generated with the characteristic size of the duct structure as the design parameter and the propeller efficiency improvement ratio as the response parameter. The propeller efficiency improvement ratio is taken as the optimization objective, and the structural feature size threshold of the duct is taken as the constraint condition. Based on the second-order response surface mathematical model, the structural optimization design of the duct is carried out, and the optimization results are simulated and verified to prove the reliability of the response surface model. The results show that the efficiency improvement ratio of the optimized catheter increases by 37.81 %. Therefore, the response surface model is constructed to optimize the energy-saving conduit, which is reasonable and effective. It can be used to provide a general reference for future energy-saving conduit design.