Browse > Article
http://dx.doi.org/10.3744/SNAK.2007.44.5.517

An Algorithm on Determination of Process Parameters for Roller Bending of Curved Shell Plates  

Ryu, Cheol-Ho (Dept. of Naval Architecture and Ocean Engineering, Inha University)
Lee, Jang-Hyun (Dept. of Naval Architecture and Ocean Engineering, Inha University)
Yoon, Jong-Sung (Dept. of Naval Architecture and Ocean Engineering, Inha University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.44, no.5, 2007 , pp. 517-525 More about this Journal
Abstract
This paper presents how to approximate an optimal shape of roll bending process in the fabrication of a curved shell plate. The roll bending process usually makes the cylindrical or conic shape from an initial flat plate. It means that the final shape is developable or its surface representation has zero Gaussian curvature. The fabrication shape is important in order to find process parameters of roil bending. An optimal concept is used to determine the developable fabrication shape which is in the closest proximity to the design surface or the given shell plate and is subject to developability. The results and the efficiency of this algorithm are evaluated by applying to some shell plates. Furthermore, the fabrication shape will be fundamental information for other process parameters of roll bending such as the vertical displacement of the center roller and the rolling directions.
Keywords
Singly/doubly curved shell plate; Developable surface; Roll bending process; Differential evolution;
Citations & Related Records
연도 인용수 순위
  • Reference
1 박태준, 신종계, 김원돈, 1996, '이중곡을 갖는 판의 일차 가공에서 굽힘 영역과 곡량의 결정,' 대한조선학회 추계 학술대회 논문집, pp. 455-458
2 Pottmann, M. and Farin, G. 1995, 'Developable Rational Bezier and B-spline Surfaces,' Computer Aided Geometric Design, Vol. 12, pp. 513-531   DOI   ScienceOn
3 김유일, 신종계, 이장현, 1996, 'Roll Bending Machine 에 의한 선체외판의 곡면가공 해석,' 대한조선학회 논문집, 제 33권, 제 4호, pp. 142-149
4 윤대규, 신종계, 류철호, 1999, '최소 2차 가공을 위한 이중 곡면의 롤러 굽힘 형상 결정,' 대한조선학회 논문집, 제 36권, 제 3호, pp. 135-144
5 Randrup, T., 1998, 'Approximation by cylinder surfaces,' Computer-Aided Design, Vol. 30, No. 10, pp. 807-812   DOI   ScienceOn
6 Hardt, D.E., Constantine, E. and Wright, A., 1992, 'A Model of the Sequential Bending Process for Manufacturing Simulation,' Journal of Engineering for Industry, Vol. 114, pp. 181-187
7 Goldman, R., 2005, 'Curvature Formulas for Implicit Curves and Surfaces,' Computer Aided Geometric Design, Vol. 22, pp. 232-658   DOI   ScienceOn
8 Pottmann, M. and Wallner, J., 1999, 'Approximation Algorithms for Developable Surfaces,' Computer Aided Geometric Design, Vol. 16, pp. 539-556   DOI   ScienceOn
9 Shin, J.G., Won, S.I., Ryu, C.H., Yim, H., and Lee, J.H., 2002, 'Object-Oriented Development of an Integrated System for Manufacturing Information of Roll Bending Process,' Journal of Ship Production, Vol. 18, No. 2, pp. 86-91
10 Storn, R. and Price, K., 1995, 'Differential Evolution - A Simple and Efficient Adaptive Scheme for Global Optimization over Continuous Spaces,' International Computer Science Institute, Technical Report TR-95-012
11 Storn, R., 1996, 'On the Usage of Differential Evolution for Function Optimization,' in Proceedings of the 1996 Biennial Conference of the North American Fuzzy Information Processing Society (NAFIPS), pp. 519-523 (Berkeley, CA)   DOI