Open AccessIMPROVABILITY OF THE FABRICATION LINE IN A SHIPYARD
Author(s) -
Neven Hadžić,
Viktor Ložar,
Tihomir Opetuk,
Hrvoje Cajner
Publication year - 2021
Publication title -
brodogradnja
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.553
H-Index - 14
eISSN - 1845-5859
pISSN - 0007-215X
DOI - 10.21278/brod72302
Subject(s) - bottleneck , markov chain , production line , shipyard , computer science , production system (computer science) , production (economics) , markov process , identification (biology) , intuition , process (computing) , discrete event simulation , shipbuilding , industrial engineering , operations research , engineering , simulation , mathematics , embedded system , mechanical engineering , philosophy , macroeconomics , history , archaeology , biology , operating system , epistemology , machine learning , statistics , botany , economics
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.