유전자 알고리즘을 이용한 컨테이너선을 위한 침식예방용 최적방향타 단면 설계
Study on Optimization of Anti-erosion Rudder Section of Large Container Ship by Genetic Algorithm
2
조회
0
다운로드
6
인용
0
참고문헌
키워드
초록
This paper describes the optimization of the rudder section by the genetic algorism based on VLM(Vortex Lattice Method) and panel method. The developed propeller-rudder analysis program has been validated by comparing with experimental data. The research extends to optimize the anti-erosion rudder section of the large container ship. The object function is the amount of pressure at leading edge of rudder which is closely related with erosion phenomena. The optimized rudder has been compared with conventional rudder with NACA 0021 section by analyzing with the developed program. The finally optimized section has low and mild pressure distribution in comparison with the NACA rudder. The experiments is expected to be carried out for the validation of the present optimization and more parametric study of section geometry is also expected to be conducted in the near future.
Abstract
This paper describes the optimization of the rudder section by the genetic algorism based on VLM(Vortex Lattice Method) and panel method. The developed propeller-rudder analysis program has been validated by comparing with experimental data. The research extends to optimize the anti-erosion rudder section of the large container ship. The object function is the amount of pressure at leading edge of rudder which is closely related with erosion phenomena. The optimized rudder has been compared with conventional rudder with NACA 0021 section by analyzing with the developed program. The finally optimized section has low and mild pressure distribution in comparison with the NACA rudder. The experiments is expected to be carried out for the validation of the present optimization and more parametric study of section geometry is also expected to be conducted in the near future.
참고문헌 (6)
- Greely, D.S., "Numerical Methods for Propeller Design and Analysis in Steady Flow", SNAME Transaction, 90, pp.415~453 (1982)
- Han, J.M., "Analysis of Propeller-rudder Interaction with Rudder Angle", Proceedings, Annual Autumn Meeting of Society of Naval Architects of Korea, pp.206~209 (1999)
- Lee, D.K., "A Study on the Efficient Optimization Method by Coupling Genetic Algorithm and Direct Search Method", Journal of the Society of Naval Architects of Korea, 31(3), pp.12~18 (1994)
- Lee, J.T., "A Potential Based Panel Method for the Aalysis of Mrine Popellers in Seady Flow", 박사, pp.1987
- Lee, K.H., "Hybrid Optimization Algorithm based on the Interface of a Sequential Linear Approximation Method and Genetic Algorithm", Journal of the Society of Naval Architects of Korea, 34(3), pp.93~101 (1997)
- Molland, A.F., "The Free-stream Characteristics of Ship Skeg-rudders", 박사, Department of Ship Science, pp.1981