中国舰船研究2017，Vol.12Issue(4)：41-48,8.DOI:10.3969/j.issn.1673-3185.2017.04.007
基于统计能量分析的船舶舱室阻尼降噪布置优化
Damping layout optimization for ship's cabin noise reduction based on statistical energy analysis
摘要
Abstract
An optimization analysis study concerning the damping control of ship's cabin noise was carried out in order to improve the effect and reduce the weight of damping. Based on the Statistical Energy Analysis (SEA) method, a theoretical deduction and numerical analysis of the first-order sensitivity analysis of the A-weighted sound pressure level concerning the damping loss factor of the subsystem were carried out. On this basis, a mathematical optimization model was proposed and an optimization program developed. Next, the secondary development of VA One software was implemented through the use of MATLAB, while the cabin noise damping control layout optimization system was established. Finally, the optimization model of the ship was constructed and numerical experiments of damping control optimization conducted. The damping installation region was divided into five parts with different damping thicknesses. The total weight of damping was set as an objective function and the A-weighted sound pressure level of the target cabin was set as a constraint condition. The best damping thickness was obtained through the optimization program, and the total damping weight was reduced by 60.4%. The results show that the damping noise reduction effect of unit weight is significantly improved through the optimization method. This research successfully solves the installation position and thickness selection problems in the acoustic design of damping control, providing a reliable analysis method and guidance for the design.关键词
舱室噪声/统计能量分析/声阻尼/降噪/优化设计/二次开发Key words
cabin noise/Statistical Energy Analysis (SEA)/acoustic damping/noise reduction/optimization design/secondary development分类
交通工程引用本文复制引用
吴卫国,魏杰证,林永水,范明伟,甘进..基于统计能量分析的船舶舱室阻尼降噪布置优化[J].中国舰船研究,2017,12(4):41-48,8.基金项目
国家部委基金资助项目 （）
