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Workers’ rest allowance and smoothing of the workload in assembly lines

Author

Listed:
  • Serena Finco
  • Daria Battini
  • Xavier Delorme
  • Alessandro Persona
  • Fabio Sgarbossa

Abstract

Ergonomic aspects have a crucial role in manual assembly systems. They impact on the workers’ health, final product quality and productivity. For these reasons, there is the necessity to integrate them into the assembly line balancing phase as, whereas, only time and cost variables are considered. In this study, human energy expenditures are considered as ergonomic aspects and we integrate them, for the first time, into the assembly line balancing problem type 2 through the rest allowance evaluation. We consider as an objective function the minimization of the smoothness index. Firstly, a new optimal method based on mixed integer linear programming and a new linearization methodology are proposed. Then, a heuristic approach is introduced. To complete the study, a computational experimentation is presented to validate the mathematical model and to compare the methodologies proposed in terms of computational time, complexity and solution. Additionally, we provide a detailed analysis of the impact that rest allowance evaluation can have on productivity comparing the results obtained, taking into account the rest allowance integration before, during and after the assembly balancing process.

Suggested Citation

  • Serena Finco & Daria Battini & Xavier Delorme & Alessandro Persona & Fabio Sgarbossa, 2020. "Workers’ rest allowance and smoothing of the workload in assembly lines," International Journal of Production Research, Taylor & Francis Journals, vol. 58(4), pages 1255-1270, February.
    • Handle: RePEc:taf:tprsxx:v:58:y:2020:i:4:p:1255-1270
    DOI: 10.1080/00207543.2019.1616847
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    Cited by:

    1. Taher Ahmadi & Bo van der Rhee, 2023. "Multiobjective Line Balancing Game: Collaboration and Peer Evaluation," INFORMS Transactions on Education, INFORMS, vol. 23(3), pages 179-195, May.
    2. Battini, Daria & Berti, Nicola & Finco, Serena & Zennaro, Ilenia & Das, Ajay, 2022. "Towards industry 5.0: A multi-objective job rotation model for an inclusive workforce," International Journal of Production Economics, Elsevier, vol. 250(C).
    3. Battaïa, Olga & Dolgui, Alexandre, 2022. "Hybridizations in line balancing problems: A comprehensive review on new trends and formulations," International Journal of Production Economics, Elsevier, vol. 250(C).
    4. Pabolu, Venkata Krishna Rao & Shrivastava, Divya & Kulkarni, Makarand S., 2022. "Modelling and prediction of worker task performance using a knowledge-based system application," International Journal of Production Economics, Elsevier, vol. 254(C).
    5. Berti, Nicola & Finco, Serena & Battaïa, Olga & Delorme, Xavier, 2021. "Ageing workforce effects in Dual-Resource Constrained job-shop scheduling," International Journal of Production Economics, Elsevier, vol. 237(C).
    6. Al Theeb Nader A. & Al-Araidah Omar & Al-Ali Malik M. & Khudair Adnan I., 2023. "Impact of Human Energy Expenditure on Order Picking Productivity: A Monte Carlo Simulation Study in a Zone Picking System," Engineering Management in Production and Services, Sciendo, vol. 15(4), pages 12-24, December.

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