基于QPSO的水下加肋圆柱壳体噪声优化设计  

QPSO Algorithm-based Noise Optimal Design of Submerged Ring-stiffened Cylindrical Shells

作　　者：刘金实 强学才[3] 商德江[1,2] 陈鸿洋[4] 

机构地区：[1]哈尔滨工程大学水声技术重点实验室,哈尔滨150001 [2]哈尔滨工程大学水声工程学院,哈尔滨15001 [3]中国船舶重工集团公司第七〇三研究所,哈尔滨150001 [4]中国舰船研究设计中心船舶振动噪声重点实验室,武汉430064

出　　处：《噪声与振动控制》2015年第2期11-14,共4页Noise and Vibration Control

基　　金：国家自然科学基金(11274080)

摘　　要：提出了厚度分布沿轴向周期变化的加肋圆柱壳体有限元矩阵的快速导出算法,并结合边界元法对圆柱壳体在水下受力振动与声辐射进行预报。在此基础上,以低频段内总声辐射功率最小为优化目标,采用量子粒子群算法对厚度沿轴向周期分布的加肋圆柱壳体进行优化设计。数值仿真结果表明,该算法对水下加肋圆柱壳体的噪声优化设计分析周期有明显的改善,合理配置圆柱壳体的厚度分布可以有效的改善圆柱壳体在水下的噪声性能。A fast finite-element matrices generation algorithm was established for analysis of the ring-stiffened cylindrical shells with the thickness varying periodically along the axis. Combining with boundary element method, the underwater vibration and sound radiation of the shells under harmonic force stimulation were predicted. On this basis, the quantum particle swarm algorithm was adopted to minimize the total radiation sound power of the cylindrical shells. Results of the numerical simulation show that this algorithm is effective and economic for noise optimal design of the ring-stiffened underwater cylindrical shells. The optimal design of the thickness distribution can effectively reduce the noise radiation of the shells.

关 键 词：振动与波 加肋圆柱壳 优化设计 量子粒子群算法 有限元—边界元法 

分 类 号：U661.44[交通运输工程—船舶及航道工程]