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Disassembly line balancing under high variety of end of life states using a joint precedence graph approach

Abstract : Disassembly is an important aspect of end of life product treatment, as well as having products disassembled in an efficient and responsible manner. Disassembly line balancing is a technique that enables a product to be disassembled as efficiently and economically viable as possible; however, considering all possible end of life (EOL) states of a product makes disassembly line balancing very difficult. The EOL state and the possibility of multiple recovery options of a product can alter both disassembly tasks and task times for the disassembly of the EOL product. This paper shows how generating a joint precedence graph based on the different EOL states of a product is beneficial to achieving an optimal line balance where traditional line balancing approaches are used. We use a simple example of a pen from the literature to show how a joint disassembly precedence graph is created and a laptop example for joint precedence graph generation and balancing. We run multiple scenarios where the EOL conditions have different probabilities and compare results for the case of deterministic task times. We also consider the possibility where some disassembly task times are normally distributed and show how a stochastic joint precedence graph can be created and used in a stochastic line balancing formulation.
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Robert J. Riggs, Olga Battaïa, S. Jack Hu. Disassembly line balancing under high variety of end of life states using a joint precedence graph approach. Journal of Manufacturing Systems, Elsevier, 2015, 37, In Press, Accepted Manuscript. ⟨10.1016/j.jmsy.2014.11.002⟩. ⟨emse-01155145⟩

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