Original scientific paper
The Estimation of the Production Time for Steel Hull Elements Using the Finite State Method
Viktor Ložar
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10000 Zagreb, Croatia
*
Neven Hadžić
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10000 Zagreb, Croatia
Tihomir Opetuk
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10000 Zagreb, Croatia
Robert Keser
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10000 Zagreb, Croatia
* Corresponding author.
Abstract
The steel hull process of a shipyard transforms steel plates and profiles into elements needed to build
the ship hull and superstructure. The production time for these elements is the basic input to schedule
the whole shipbuilding process. Therefore, it is important to implement time estimation approaches
based on production system engineering.
In this study, the recently developed finite state method for serial and splitting lines is employed to
describe the steel hull process of a shipyard semi-analytically. Two typical ship sections are chosen
to estimate the corresponding key performance indicators as the production rate, the work in process,
and probabilities of starvation and blockade. The production time is estimated based on the production
rate and the cycle time. These results are compared to the results obtained through a simulation
approach using the software tool Enterprise Dynamics. The conclusion highlights the advantages and
disadvantages of both approaches.
Keywords
Hrčak ID:
317232
URI
Publication date:
16.5.2024.
Visits: 187 *