The Research On Multi-objective Disassembly Line Balancing Problem Based On Grey Wolf Optimizer

With the rapid development of science and technology,the speed of product upgrading is faster and faster,and the service life of products is shorter and shorter.Therefore,a large number of waste electronic appliances need to be treated.Green remanufacturing takes energy conservation and environmental protection as the goal,advanced technology as the means and resource conservation as the guidance to repair or transform waste products.Disassembly is a key step in the green remanufacturing process.Disassembly line is an inevitable trend to realize the industrialization,industrialization and intelligent disassembly operation.The problem of disassembly line balance provides more directions for the further development of disassembly line because of its complexity and diversity of categories.In this paper,the optimization method of multi-objective linear and U-shaped disassembly line balancing problem for remanufacturing is studied,The details are as follows:(1)A Single-product-multi-objective Linear Disassembly Line Balance Problem is proposed.Considering the uncertainty of disassembly time and the risk of disassembly failure,a mathematical model with the objectives of maximizing profit,minimizing energy consumption and minimizing carbon emission is established.The grey wolf optimizer is improved to solve the problem.The results of case test prove the effectiveness and feasibility of the proposed algorithm.(2)In this paper,a Multi-product-multi-objective Linear Disassembly Line Balance Problem is proposed,and a mathematical model for simultaneous disassembly of multiple products on the linear disassembly line is established.Considering the uncertainty of disassembly time and the risk of disassembly failure,the problem is solved to maximize profit,minimize energy consumption and minimize carbon emissions.The gray wolf optimizer is improved to solve the problem.Through the analysis of the test results of the case,the reliability and superiority of the proposed algorithm in solving the problem are proved.(3)A Single-product-multi-objective U-shaped Disassembly Line Balance Problem is proposed,and a mathematical model for U-shaped disassembly line is established.Considering the maximum acceptable carbon emission,the maximum profit and minimum demand index are solved.The gray wolf optimizer is improved to solve the problem.Through the analysis of the test results of the case,the effectiveness and feasibility of the algorithm proposed in this paper are proved.(4)A Multi-product-multi-objective U-shaped Disassembly Line Balance Problem is proposed,and a mathematical model for simultaneous disassembly of multiple products on the U-shaped disassembly line is established.Considering the maximum acceptable carbon emission,the maximum profit and minimum demand index are solved.The gray wolf optimizer is improved to solve the problem.Through the analysis of the test results of the case,the reliability and superiority of the proposed algorithm in solving the problem are proved.In the algorithm test,the improved gray wolf optimizer is compared with other classical algorithms,and the performance of the algorithm is evaluated by using the test index of the multi-objective optimization algorithm.The superiority of the improved gray wolf optimization algorithm is clear,which provides a new direction for the improved gray wolf optimization algorithm to solve the multi-objective problem,and also provides more ideas for solving the disassembly line balance problem.