基于响应面法的SPS舱口盖结构多目标优化  

Multi-objective optimization of the SPS hatch cover based on response surface method

作　　者：田阿利[1] 魏震 张海燕 马清勇 姚鹏 TIAN A-li;WEI Zhen;ZHANG Hai-yan;MA Qing-yong;YAO Peng(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212000

出　　处：《船舶力学》2021年第4期502-508,共7页Journal of Ship Mechanics

基　　金：国家自然科学基金资助项目(51109101,51509115);江苏省高校自然科学研究重大资助项目(17KJA580002);江苏省船舶先进设计制造技术重点实验室开放研究基金项目(CJ1601)。

摘　　要：本文以轻量化为前提,设计传统钢制板架舱口盖的钢聚氨酯夹层板(Steel-Polyurethane Sandwich plate,SPS)替代方案。对不符合结构刚度、强度要求的初步方案,采用基于BBD(Box-Behnken Design)设计的响应面法进行结构多目标优化设计,以结构变形和等效应力作为优化目标,结构尺寸及质量为约束条件,建立响应面模型,得到优化后的SPS舱口盖设计方案;并采用有限元仿真方法,对优化前后的方案进行了仿真计算,对优化目标进行了详细对比,验证了优化的有效性和必要性。对比结果表明:优化后的SPS舱口盖结构,在减重9.28%的情况下,变形减少了36.7%,应力降低了30.5%;说明采用响应面法对SPS舱口盖实现多目标优化可行,且优化效果明显。On the premise of light weight,an alternative scheme of steel-polyurethane sandwich plate(SPS)for traditional steel hatch cover is designed.The response surface method based on BBD design is used to optimize the multi-objective structure design for the preliminary scheme that does not meet the requirements of structural stiffness and strength.With structural deformation and equivalent stress as the optimization objective and structural size and quality as constraints,the response surface model is established and the optimized design scheme of SPS hatch cover is obtained,and the size and quality of the structure are optimized.The finite element method is used to simulate the structural scheme before and after optimization,and the optimization results are compared,which verifies the effectiveness and necessity of the optimization.The results indicate that the structural deformation of SPS hatch cover decreased by 36.7%,and the stress reduced by 30.5% after optimization,and the mass of SPS hatch cover reduced by 9.28% compared with that of steel hatch cover.It is shown that the response surface methodology is feasible to achieve multi-objective optimization of SPS hatch cover,and has a significant optimization effect.

关 键 词：SPS舱口盖 响应面法 多目标优化 

分 类 号：U663[交通运输工程—船舶及航道工程]