Original scientific paper
https://doi.org/10.21278/brod72302
IMPROVABILITY OF THE FABRICATION LINE IN A SHIPYARD
Neven Hadžić
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića, 5, 10000 Zagreb
Viktor Ložar
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića, 5, 10000 Zagreb
Tihomir Opetuk
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića, 5, 10000 Zagreb
Hrvoje Cajner
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića, 5, 10000 Zagreb
Abstract
The ship production process is a complex manufacturing system involving numerous working stations mutually interconnected by transport devices and buffers. Such a production system can be efficiently modeled using the stochastic system approach and Markov chains. Once formulated, the mathematical model enables analysis of the governing production system properties like the production rate, work-in-process, and probabilities of machine blockage and starvation that govern the production system bottleneck identification and its continuous improvement. Although the continuous improvement of the production system is a well-known issue, it is usually based on managerial intuition or more complex discrete event simulation yielding sub-optimal results. Therefore, a semi-analytical procedure for the improvability analysis using the Markov chain framework is presented in this paper in the case of the shipyard’s fabrication lines. Potential benefits for the shipyards are pointed out as the main gain of the improvability analysis.
Keywords
Ship production process; Bernoulli production lines; Markov chains; Serial lines; Performance measures; Improvability
Hrčak ID:
261618
URI
Publication date:
1.7.2021.
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