CAJ | 학술논문

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。
제출료후도분포연축향주기변화적가륵원주각체유한원구진적쾌속도출산법，병결합변계원법대원주각체재수하수력진동여성복사진행예보。재차기출상，이저빈단내총성복사공솔최소위우화목표，채용양자입자군산법대후도연축향주기분포적가륵원주각체진행우화설계。수치방진결과표명，해산법대수하가륵원주각체적조성우화설계분석주기유명현적개선，합리배치원주각체적후도분포가이유효적개선원주각체재수하적조성성능。
A fast finite-element matrices generation algorithm was established for analysis of the ring-stiffened cylindri-cal 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 parti-cle swarm algorithm was adopted to minimize the total radiation sound power of the cylindrical shells. Results of the numeri-cal 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.