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Optimizing the sequence-dependent setup times of a machine using an optimal lot size heurisitic for TKF

Kuijper, M.R. (2024) Optimizing the sequence-dependent setup times of a machine using an optimal lot size heurisitic for TKF.

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Abstract:Sequence-dependent setup times in a cable manufacturing environment play an important role in the efficient time planning of production but increase the complexity of models that determine optimal production quantities and sequences. Heuristics are needed to solve this type of problem. This thesis uses the solving procedure framework of Laguna (1999) adjusted to the specifications of the cable manufacturing process at TKF. First, the initial quantities and sequences are determined. Using this initial solution, the production times are further optimized. We present an alternative to the last optimization step of the framework of Laguna. This approach follows a heuristic that can be solved by hand, which improves setup times. Compared to planners at TKF, the sequence-dependent setup times can be improved by 30%. Another focus of this thesis is the comparison of two different production strategies on the machine to be optimized. The strategy called single decks has a higher output but longer sequence-dependent setup times, the other strategy called double decks has a lower output but also lower longer sequence-dependent setup times. Both strategies are optimized with the heuristic and the best option is chosen based on production time and financial implications.
Item Type:Essay (Bachelor)
Clients:
TKF, Haaksbergen, The Netherlands
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:58 process technology
Programme:Industrial Engineering and Management BSc (56994)
Link to this item:https://purl.utwente.nl/essays/98471
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