Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Research on Completeness Assessment of Blocks using DOF Restriction

자유도 제약을 이용한 블록의 완성도 평가 연구

  • Kim, Chan Suk (Dept. of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Shin, Jong Gye (Dept. of Naval Architecture and Ocean Engineering and Research Institute of Marine Systems Engineering, Seoul National University) ;
  • Noh, Jack You (Dept. of Naval Architecture, Kunsan National University)
  • 김찬석 (서울대학교 조선해양공학과) ;
  • 신종계 (서울대학교 조선해양공학과 및 해양시스템공학연구소) ;
  • 노재규 (군산대학교 조선공학과)
  • Received : 2014.02.04
  • Accepted : 2014.06.23
  • Published : 2014.10.20
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Abstract

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

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References

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