Once a disassembly line is constructed, it typically remains unchanged for an extended period. Consequently, the disassembly of end-of-life (EOL) electronic and electrical appliances for subsequent orders must be planned based on the existing production line configuration after completing the previous order of EOL electronic and electrical appliances. To address this challenge, this study proposed a type-II robotic partial disassembly line balancing (II-RPDLB) problem, leveraging advanced robot techniques. In addition, a mixed integer programming (MIP) model was developed according to the characteristics of the II-RPDLB problem. Furthermore, this study designed an MIP-based bi-stage genetic neighborhood search algorithm (bi-GNSA) for solving the II-RPDLB problem. The effectiveness of the proposed MIP-based bi-GNSA was verified by comparing its solutions with those obtained from the MIP model. Additionally, the improvement effect of the designed MIP-based bi-GNSA was verified with the original algorithm. The solution quality of the MIP-based bi-GNSA was validated with the NSGA-II and multi-objective enhanced differential evolution algorithm. Finally, a case study involving the disassembly of an EOL television was conducted to demonstrate the practical applicability of the bi-GNSA on an existing disassembly line.
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