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OTPA结合NSGA-Ⅱ算法的产品包装系统优化设计

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利用工况传递路径分析(operational transfer path analysis,OTPA)方法分析随机振动不同激励谱型、不同振动等级下产品包装系统的振动传递特性,结合非支配排序遗传算法(non-dominated sorting genetic algorithm-Ⅱ,NSGA-Ⅱ)进行包装系统优化设计.试验结果表明:产品关键元件实测振动加速度响应曲线与OTPA方法合成的加速度响应曲线吻合良好,验证了 OTPA方法的正确性;通过OTPA方法量化各传递路径的振动贡献量,对比识别出产品包装系统的主要振动传递路径;保持非主要传递路径的缓冲衬垫材料不变,应用NSGA-Ⅱ算法优化产品包装件系统中主要振动传递路径处的缓冲衬垫分配,有效降低了关键元件的加速度响应,减少在振动过程中的能量聚集,促使各传递路径的振动贡献量趋于均衡.实现了以缓冲性能为主导,同时兼顾环保性能与成本的包装系统优化设计,验证了优化方法的有效性,为产品包装系统设计提供参考.
Optimization design of product packaging system using OTPA combined with NSGA-Ⅱ algorithm
Here,the operational transfer path analysis(OTPA)method was used to analyze vibration transfer characteristics of product packaging system under random vibration's different excitation spectra and different vibration levels,and the non-dominated sorting genetic algorithm-Ⅱ(NSGA-Ⅱ)was combined to perform packaging system optimization design.The experimental results showed that the actually measured vibration acceleration response curves of product key components agree well with acceleration response curves synthesized by OTPA method to verify the correctness of OTPA method;vibration contributions of various transmission paths are quantified with OTPA method,they are compared to identify main vibration transmission paths of product packaging system;buffer pad material of non-main transmission paths is kept unchanged,and NSGA-Ⅱ is applied to optimize allocation of buffer pads at main vibration transmission paths in product packaging system to effectively reduce acceleration responses of components and energy accumulation in vibration process,and make vibration contributions of various transmission paths balance;the packaging system optimization design with buffering performance as the main focus,while considering environmental protection performance and cost,is realized and the effectiveness of the optimization method is verified to provide a reference for product packaging system design.

random vibrationoperating transfer path analysis(OTPA)vibration contributionnon-dominated sorting genetic algorithm-Ⅱ(NSGA-Ⅱ)vibration reduction optimization

陆怡宇、张元标、杨松平、聂楚昕

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暨南大学包装工程研究所,广东珠海 519070

暨南大学产品包装与物流重点实验室,广东珠海 519070

暨南大学珠海市产品包装与物流重点实验室,广东珠海 519070

随机振动 工况传递路径分析(OTPA) 振动贡献量 非支配排序遗传算法(NSGA-Ⅱ) 减振优化

2025

振动与冲击
中国振动工程学会 上海交通大学 上海市振动工程学会

振动与冲击

北大核心
影响因子:0.898
ISSN:1000-3835
年,卷(期):2025.44(1)