Browse > Article

A Development of Data Structure and Mesh Generation Algorithm for Global Ship Analysis Modeling System  

Kim I.I. (대우조선해양 정보기술 R&D팀)
Choi J.H. (대우조선해양 구조 R&D팀)
Jo H.J. (대우조선해양 IT 기획팀)
Suh H.W. (대우조선해양 정보기술 R&D팀)
Publication Information
Korean Journal of Computational Design and Engineering / v.10, no.1, 2005 , pp. 61-69 More about this Journal
Abstract
In the global ship structure and vibration analysis, the FE(finite element) analysis model is required in the early design stage before the 3D CAD model is defined. And the analysis model generation process is a time-consuming job and takes much more time than the engineering work itself. In particular, ship structure has too many associated structural members such as stringers, stiffness and girders etc. These structural members should be satisfied as the constraints in analysis modeling. Therefore it is necessary to support generation of analysis model with satisfying these constraints as an automatic manner. For the effective support of the global ship analysis modeling, a method to generate analysis model using initial design information within ship design process, that hull form offset data and compartment data, is developed. In order to easily handle initial design information and FE model information, flexible data structure is proposed. An automatic quadrilateral mesh generation algorithm using initial design information to satisfy the constraints imposed on the ship structure is also proposed. The proposed data structure and mesh generation algorithm are applied for the various type of vessels for the usability test. Through this test, we have verified the stability and usefulness of this system including mesh generation algorithm.
Keywords
Ship structure; Finite element; Global ship analysis; Mesh generation; Data structure; Quadrilateral; Initial ship design information;
Citations & Related Records
연도 인용수 순위
  • Reference
1 S. J. Owen, A Survey of Unstructured Mesh Generation Technology. Proceedings of the Seventh International Mesh Round Table, Dearborn, Michigan; October 1998. p. 239.267
2 김형일, 채수원, '트럼 곡면상에서 사각형 요소망의 자동생성', 한국 CAD/CAM 학회 논문집. 제4권, 제2호, pp. 153-161, 1999
3 TD, Blaker and MS, Stephenson, 'Paving: A New Approach to Automated Quadrilateral Mesh Generation', Int. J Num. Method Eng., Vol. 32, pp. 811-847, 1991   DOI
4 Lee, K.-Y., Kim, I.-I., Cho, D.-Y. nad Kim, T.-W., 'An Algorithm of Automatic 2D Quadrilateral Mesh Generation with Line Constraints', Comp. Aided Des., Vol. 35, pp. 1055-1068, 2003   DOI   ScienceOn
5 P. S. Jensen, 'Automatic Panel Generation for Seakeeping and Wave Resistance Calculations', CFD and CAD in ship Design, Elsevier, pp. 133-146, 1990
6 윤태경, 김동준, '선체 곡면의 자동 요소화', 한국해양공학회지, 제11권, 제2호, pp.138-144, 1997
7 CK Lee and SH Lo, 'A New Scheme for the Generation of a Graded Quadrilateral Mesh', Comp. Struc., Vol. 52, No.5, pp. 847-857, 1994   DOI   ScienceOn
8 권진철, 강호열, 허옥재, 김종서, '선박의 CAD/CAE Interface 및 자동요소 생성기술', 2001 한국 CAD/ CAM 학회 학술 발표회 논문집, pp. 405-412, 2001
9 B. Joe, 'Quadrilateral Mesh Generation in Polygonal Regions', Camp. Aided Des., Vol. 7, pp. 209-222, 1995
10 D. Nowottny, 'Quadrilateral Mesh Generation Via Gwometrically Optimized Domain Decomposition', Proceeding of the Sixth International Mesh Round Table, Park City Utha, 1997
11 SJ Owen, ML, Staten, SA Canann and S Saigal, 'Q-Morph: An Indirect Approach to Advancing Front Quad Meshing', Int. J Num. Method Eng., Vol. 44, pp. 1317-1340, 1999   DOI   ScienceOn
12 Armstrong CG, TKH, '2D Finite Element Mesh Generation by Medial Axis Subdivision', Adv. Eng. Soft. Vol. 13, pp. 313-324