Development of automatic nesting system for shipbuilding using the branch-and-bound method

Development of automatic nesting system for shipbuilding using the branch-and-bound method This study develops a novel automatic nesting system for shipbuilding using the branch-and-bound method. The previous studies mainly discussed strip-packing problem, which is related to the arrangement of parts on the base material. In addition to the strip-packing problem, the present study also considers the bin-packing problem, which is the distribution of parts to different base materials. Therefore, the nesting problem in shipbuilding is defined as a combinatorial optimization problem that encompasses both the bin-packing and strip-packing problems. Based on the above-mentioned problem definition, the solution space of the nesting problem is greatly enhanced, and a lot of time is required to determine the optimal solution. Therefore, the branch-and-bound method is used in this study to solve the above-mentioned combinatorial optimization problem considering the trade-off relation between improving the optimality (i.e., yield rate) and reducing the computation time. This paper discusses the proposed method in detail. In addition, an actual nesting problem is solved using the proposed method to test its validity. Keywords Shipbuilding · Nesting · Branch-and-bound method · Optimization 1 Introduction • significant differences in part sizes; a few restrictions on how parts are arranged; Nesting is the process of efficiently arranging groups of • a large number of parts http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Marine Science and Technology Springer Journals

Development of automatic nesting system for shipbuilding using the branch-and-bound method

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Publisher
Springer Japan
Copyright
Copyright © 2018 by JASNAOE
Subject
Engineering; Automotive Engineering; Engineering Fluid Dynamics; Engineering Design; Offshore Engineering; Mechanical Engineering
ISSN
0948-4280
eISSN
1437-8213
D.O.I.
10.1007/s00773-018-0559-x
Publisher site
See Article on Publisher Site

Abstract

This study develops a novel automatic nesting system for shipbuilding using the branch-and-bound method. The previous studies mainly discussed strip-packing problem, which is related to the arrangement of parts on the base material. In addition to the strip-packing problem, the present study also considers the bin-packing problem, which is the distribution of parts to different base materials. Therefore, the nesting problem in shipbuilding is defined as a combinatorial optimization problem that encompasses both the bin-packing and strip-packing problems. Based on the above-mentioned problem definition, the solution space of the nesting problem is greatly enhanced, and a lot of time is required to determine the optimal solution. Therefore, the branch-and-bound method is used in this study to solve the above-mentioned combinatorial optimization problem considering the trade-off relation between improving the optimality (i.e., yield rate) and reducing the computation time. This paper discusses the proposed method in detail. In addition, an actual nesting problem is solved using the proposed method to test its validity. Keywords Shipbuilding · Nesting · Branch-and-bound method · Optimization 1 Introduction • significant differences in part sizes; a few restrictions on how parts are arranged; Nesting is the process of efficiently arranging groups of • a large number of parts

Journal

Journal of Marine Science and TechnologySpringer Journals

Published: May 31, 2018

References

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