Ergonomics in assembly line balancing based on energy expenditure: a multi-objective model

Daria Battini, Xavier Delorme, Alexandre Dolgui, Alessandro Persona and Fabio Sgarbossa

International Journal of Production Research, 2016, vol. 54, issue 3, 824-845

Abstract: In many assembly systems, ergonomics can have great impact on productivity and human safety. Traditional assembly systems optimisation approaches consider only time and cost variables, while few studies include also ergonomics aspects. In this study, a new multi-objective model for solving assembly line balancing problem is developed and discussed in order to include also the ergonomics aspect. First, based on main features of assembly workstations, the energy expenditure concept is used in order to estimate the ergonomics level, thanks to a new technique, called Predetermined Motion Energy System, which helps rapidly estimate the energy expenditure values. Then, a multi-objective approach, based on four different objective functions, is introduced in order to define the efficient frontiers of optimal solutions. To complete the study, a simple numerical example for a real case is presented to analyse the behaviour of Pareto frontiers varying several parameters linked to the energy and time value.

Date: 2016
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Citations: View citations in EconPapers (11)

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DOI: 10.1080/00207543.2015.1074299

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