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Optimal shipyard facility layout planning based on a genetic algorithm and stochastic growth algorithm
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In this paper, a shipyard layout is optimized to minimize the material handling costs during ship construction with regard to the adjacency and alignment conditions of departments, and the optimisation process comprises two stages: topological and geometrical optimisations.Abstract:
This paper optimises a shipyard layout to minimise the material handling costs during ship construction with regard to the adjacency and alignment conditions of departments. Alignment is a significant factor in shipyard layout design because it potentially reduces the material handling costs by allowing aligned departments to be on a continuous production line, sharing resources. The optimisation process comprises two stages: topological and geometrical optimisations. First, the optimal topology of departments is determined by using a genetic algorithm. Second, a stochastic growth algorithm is used to allow the departments to gradually grow and have their own geometries which satisfy given requirements in area, shape, adjacency, and alignment. A case study is conducted to demonstrate the two-stage algorithm in shipyard layout design in which the effect of considering alignment constraints on shipyard layout design is presented.read more
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Facility layout planning. An extended literature review
TL;DR: A scientific literature review about FLP from the operations management perspective is offered, stressing that the generation of layout alternatives was done mainly using mathematical optimisation models, specifically discrete quadratic programming models for similar sized departments, or continuous linear and non-linear mixed integer programming model for different sized departments.
Journal ArticleDOI
Literature review on shipyard productivity in Indonesia
Thaib Rizwan,Ayana Rizki,Umiralaska Salsabila,M Muhammad,Riyan Maulana,M. A. Chaliluddin,Junaidi M. Affan,Razali Thaib,Suhendrianto Suhendrianto,Yusrizal Muchlis +9 more
TL;DR: Based on the level of technology used by the shipyard industry, it is divided into modern, traditional, and semi-modern shipyards as discussed by the authors, which is an industry that has an orientation to produce a product in the form of a ship.
Journal ArticleDOI
Leveraging tacit knowledge for shipyard facility layout selection using fuzzy set theory
TL;DR: A two-stage approach using the Fuzzy similarity index (FSI) and the FBuzzy goal programming model (FGPM) is proposed incorporating practical constraints related to site factors, harmful gases emission, environmental, and safety to yield an optimal selection of layout.
Journal ArticleDOI
Resource and time criticality based block spatial scheduling in a shipyard under uncertainty
TL;DR: Results reveal that priority rule based on TCI×RCI and shortest processing time yield the most and the least efficient trade-off, respectively, between time and resource-oriented objectives.
Journal ArticleDOI
High-precision machining in the shipbuilding industry. Applicability and advantages of electro discharge machining technology
TL;DR: In this paper, the applicability and advantages of the electro discharge machining (EDM) technique in the shipbuilding industry are discussed. This process allows the machining of high strength materials, s...
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Assignment Problems and the Location of Economic Activities
Journal ArticleDOI
Assignment Problems and the Location of Economic Activities
Journal ArticleDOI
The facility layout problem
TL;DR: Various formulations of the facility layout problem and the algorithms for solving this problem are presented and Twelve heuristic algorithms are compared on the basis of their performance with respect to eight test problems commonly used in the literature.
Journal ArticleDOI
Facility layout optimization using simulation and genetic algorithms
Farhad Azadivar,John(Jian) Wang +1 more
TL;DR: In this paper, a facility layout optimization technique is presented that takes into consideration the dynamic characteristics and operational constraints of the system as a whole, and is able to solve the facility layout design problem based on a system's performance measures, such as the cycle time and productivity.
Journal ArticleDOI
Computerized Layout Design: A Branch and Bound Approach
TL;DR: In this paper, the layout problem is formulated as a quadratic set covering problem, and a branch and bound method for optimizing the resulting problem is devised, which can be provided to the layout engineer for consideration and modification.