Simulation for criteria evaluation in shipbuilding production process layout optimisation

Development of Augmented Reality Technology Implementation in a Shipbuilding Project Realization Process

“…Although Lamb argues in his study [41] about the effects of advanced outfitting on cost reduction in the process of building navy ships or cruise ships, most shipyards today have adopted the concept of carrying out installation activities for (sub)assemblies of ship systems, equipment blocks, machines, piping, and others in the earliest possible stages of the shipbuilding process, as this will result in shorter construction periods as well as increased productivity [42]. Namely, empirical data from world practice followed by theoretical research indicate a ratio of working hours spent in the outfitting process to perform the same assembly activity from 1:3:5:7 [43] to 1:3:7:11 [44]. The subject ratio depends on the shipbuilding phase, i.e., whether the particular assembly activity is carried out in the outfitting workshop or on the panel/2D section, in the block in erection, in the ship on the slipway/berth, or after launching on the outfitting quay [43,44].…”

“…Namely, empirical data from world practice followed by theoretical research indicate a ratio of working hours spent in the outfitting process to perform the same assembly activity from 1:3:5:7 [43] to 1:3:7:11 [44]. The subject ratio depends on the shipbuilding phase, i.e., whether the particular assembly activity is carried out in the outfitting workshop or on the panel/2D section, in the block in erection, in the ship on the slipway/berth, or after launching on the outfitting quay [43,44]. Considering the shipbuilding initial phase as the most cost-effective in terms of carrying out outfitting activities, the research analyses the possibilities of optimizing shipbuilding processes by redirecting as much of the assembly work as possible from the later stages of construction to the phase of modular outfitting [43], i.e., on-unit advanced outfitting [41]-assembly of individual parts of ship's equipment and systems in outfitting workshops into equipment assemblies, equipment blocks, or the largest equipment modules [43].…”

“…The subject ratio depends on the shipbuilding phase, i.e., whether the particular assembly activity is carried out in the outfitting workshop or on the panel/2D section, in the block in erection, in the ship on the slipway/berth, or after launching on the outfitting quay [43,44]. Considering the shipbuilding initial phase as the most cost-effective in terms of carrying out outfitting activities, the research analyses the possibilities of optimizing shipbuilding processes by redirecting as much of the assembly work as possible from the later stages of construction to the phase of modular outfitting [43], i.e., on-unit advanced outfitting [41]-assembly of individual parts of ship's equipment and systems in outfitting workshops into equipment assemblies, equipment blocks, or the largest equipment modules [43]. Thus, Fafandjel et al, in their paper [43], present an algorithm for measuring possible improvements in the shipbuilding and outfitting processes optimized with the concept of modular outfitting.…”

“…Considering the shipbuilding initial phase as the most cost-effective in terms of carrying out outfitting activities, the research analyses the possibilities of optimizing shipbuilding processes by redirecting as much of the assembly work as possible from the later stages of construction to the phase of modular outfitting [43], i.e., on-unit advanced outfitting [41]-assembly of individual parts of ship's equipment and systems in outfitting workshops into equipment assemblies, equipment blocks, or the largest equipment modules [43]. Thus, Fafandjel et al, in their paper [43], present an algorithm for measuring possible improvements in the shipbuilding and outfitting processes optimized with the concept of modular outfitting. Furthermore, Rubeša et al, in their article [45], develop a procedure for assessing the reduction in labor costs in the shipbuilding process resulting from the application of the modular outfitting concept compared to the "traditional" one.…”