部分破坏性拆卸线平衡问题建模与优化

Modeling and Optimization of Partial Destructive Disassembly-line Balancing Problem

  • 摘要: 针对废旧产品零部件的质量和结构的不确定性,如锈蚀、变形等情况,将破坏性拆卸方式引入到拆卸线中.建立了考虑破坏性拆卸模式的多目标拆卸线平衡模型,旨在同时优化拆卸线的工作站数、工作站负荷、拆卸利润和拆卸能耗.为获得高质量拆卸方案,提出了一种新的多目标遗传模拟退火算法.在算法的编码和解码过程中同时考虑拆卸任务序列和拆卸模式序列;根据拆卸任务优先关系设计了双点映射交叉操作以及单点插入和双点交换变异操作.将所提算法应用于两个经典拆卸线案例,并与已知算法结果进行对比,验证了所提算法的有效性和优越性.最后,将方法应用于某废旧电视机拆卸线实例,结果表明所提模型和算法可提供多种优质的部分破坏性拆卸方案.

     

    Abstract: In view of the uncertainties of the quality and structure of parts and components of waste products such as rust and deformation, we introduce the destructive disassembly method into the disassembly line. We establish a multi-objective disassembly-line balancing model that considers destructive disassembly mode to optimize the number of workstations, workstation load, disassembly profit, and disassembly energy consumption simultaneously. To obtain high-quality disassembly schemes, we propose a new multi-objective genetic simulated annealing algorithm. In the process of encoding and decoding, we consider disassembly task sequence and disassembly mode sequence. Based on the precedence relationships of disassembly tasks, we redesign the two-point mapping crossover, single-point insertion mutation operation, and double-point exchange. We apply the proposed algorithm to two classical disassembly-line cases and compare it with known algorithm results, thereby verifying the effectiveness and superiority of the proposed algorithm. Finally, we apply the proposed algorithm to a waste television disassembly line. Results show that the proposed model and algorithm can provide a variety of high-quality partial destructive disassembly schemes.

     

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