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자유도 제약을 이용한 블록의 완성도 평가 연구

A Research on Completeness Assessment of Blocks using DOF Restriction

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참고문헌

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주제분류조선공학

초록

Accurate block shape assessment is critical for ship manufacturing and a careful assessment of the shape of a fabricated block againstthe design shape is a core issue. However, in current fabrication practice, the shape of each block is evaluated manually using rigidbody transformation. This manual evaluation process entirely depends on workers’ experiences and knowledge and makes automationof block shape assessment difficult. In this paper we propose a computation method on the registration for shape assessment of ablock during the fabrication process and for evaluation of its completion against the design shape. A conversion on matching methodby adding DOF(degree of freedom) restriction is required to reach the goals. We test our method using a real block quality assessmentdata to demonstrate its applicability to real ship manufacturing process.

Abstract

Accurate block shape assessment is critical for ship manufacturing and a careful assessment of the shape of a fabricated block againstthe design shape is a core issue. However, in current fabrication practice, the shape of each block is evaluated manually using rigidbody transformation. This manual evaluation process entirely depends on workers’ experiences and knowledge and makes automationof block shape assessment difficult. In this paper we propose a computation method on the registration for shape assessment of ablock during the fabrication process and for evaluation of its completion against the design shape. A conversion on matching methodby adding DOF(degree of freedom) restriction is required to reach the goals. We test our method using a real block quality assessmentdata to demonstrate its applicability to real ship manufacturing process.

참고문헌 (8)

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  2. Kim, D. E., "Study on Virtual Assembly System for Ship Blocks Based on 3D Measurement", 박사, Department of Naval Architecture and Ocean Engineering, pp.2006
  3. Ko, K. H., "Algorithms for Three-Dimensional Free-Form Object Matching", 박사, Department of Ocean Engineering, pp.2003
  4. 이종무, "대형 곡면 부재의 계측 및 비교기술 개발", 대한조선학회 논문집, 39(2), pp.4~33 (2002), 대한조선학회
  5. Linear Least-Squares Optimization for Point-to-Plane ICP Surface Registration, "Low, K. L.", Department of Computer Science, University of North Carolina at Chapel Hill, ~, pp.Technical Report TR04-004 (2004)
  6. Park, J.S, "Application of localization for the Fabrication of Large Curved Plates in Shipbuilding", Computer-Aided Design, 41(12), pp.907~917 (2009)
  7. 신성철, "유전자 알고리즘을 이용한 탑재블록 위치제어에 관한 연구", 한국해양공학회지, 25(5), pp.76~81 (2011), 한국해양공학회
  8. Thomas, M.T., "Newton Method for Parametric Surface Registration. Part I. Theory", Computer Aided Design, 35(1), pp.107~114 (2003)

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