해상풍력발전기 자켓 지지구조물의 최적설계 및 신뢰성해석
Design Optimization and Reliability Analysis of Jacket Support Structure for 5-MW Offshore Wind Turbine
2
조회
0
다운로드
6
인용
0
참고문헌
키워드
초록
Since the support structure of an offshore wind turbine has to withstand severe environmental loads such as wind, wave, andseismic loads during its entire service life, the need for a robust and reliable design increases, along with the need for a cost effective design. Inaddition, a robust and reliable support structure contributes to the high availability of a wind turbine and low maintenance costs. From this pointof view, this paper presents a design process that includes design optimization and reliability analysis. First, the jacket structure of the NREL5-MW offshore wind turbine is optimized to minimize the weight and stresses, while satisfying the design requirements. Second, the reliability ofthe optimum design is evaluated and compared with that of the initial design. Although the present study results in a new optimum shape for ajacket support structure with reduced weight and increased reliability, the authors suggest that the optimum design has to be accompanied by areliability analysis during the design process, as well as reliability based design optimization if needed.
Abstract
Since the support structure of an offshore wind turbine has to withstand severe environmental loads such as wind, wave, andseismic loads during its entire service life, the need for a robust and reliable design increases, along with the need for a cost effective design. Inaddition, a robust and reliable support structure contributes to the high availability of a wind turbine and low maintenance costs. From this pointof view, this paper presents a design process that includes design optimization and reliability analysis. First, the jacket structure of the NREL5-MW offshore wind turbine is optimized to minimize the weight and stresses, while satisfying the design requirements. Second, the reliability ofthe optimum design is evaluated and compared with that of the initial design. Although the present study results in a new optimum shape for ajacket support structure with reduced weight and increased reliability, the authors suggest that the optimum design has to be accompanied by areliability analysis during the design process, as well as reliability based design optimization if needed.
참고문헌 (21)
- Americal Instutute of Steel Consturction(AISC), "Specification for Structural Steel Builidngs, Allowable Stress Design and Plastic Design", ~ (1989)
- American Petroleum Institute(API), "Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms-Working Stress Design", API Recommended Practice 2A-WSD (RP 2A-WSD), ~ (1993)
- Final Report WP4. 2: Support Structure Concepts for Deep Water Sites, "de Vries, W", ~ (2011)
- Structural Reliability Analysis of Marine Structures, "Det Norske Veritas (DNV)", ~, pp.Classification Notes No.30.6 (1992)
- Joint Industry Project, Guideline for Offshore Structural Reliability Analysis: Examples for Jacket Platforms, "Det Norske Veritas (DNV)", 95~3204, pp.Report No. 95-3204 (1996)
- Bentley Systems, "SACS Users Manual 5.3, Bentley Systems Incorporated", ~ (2011)
- Garrad Hassan GL, "Bladed Ttheory Manual Version 4.1" (2010), Garrad Hassan & Partners Ltd
- Han, K. M, "Optimum Design of Substructure in Floating Wind Turbine", Proceedings of the Annual Autumn Meeting, SNAK, Mokpo, 3-4 November, 2011 (2011)
- Hess, P.E, "Uncertainties in Material and Geometric Strength and Load Variables", Naval engineers journal, 114(2), pp.139~166 (2002)
- 이지현, "해상풍력발전기 모노파일 설계민감도해석 및 최적설계", 대한조선학회 논문집, 51(1), pp.78~87 (2014), 대한조선학회
- "Wind Turbines-Part 3: Design Requirements for Offshore Wind Turbines. Edition 1.0, International Electrotechnical Commission", IEC-61400-3, ~ (2009)
- Definition of a 5-MW Reference Wind Turbine for Offshore System Development, "Jonkman, J", NREL, ~, pp.NREL (2009), TP-500-38060
- Jonkman, J, "Offshore Code Comparison Collaboration (OC3) for IEA Task 23 Offshore Wind Technology and Deployment", Contract, 2010(303), pp.275~3000 (2010)
- Kim, J. Y, "Site Selection of Offshore Wind Farms around the Korean Peninsula through Economic Evaluation", Renewable Energy, 54, pp.189~195 (2013)
- Krishnakumar, K, "Micro-Genetic Algorithms for Stationary and Non-Stationary Function Optimization", Proceedings of Intelligent Control and Adaptive Systems, 1196, pp.289~ (1989)
- Lee, D. Y, "Sensitivity Analysis and Optimization of Monopile Transition Piece in 5 MW Offshore Wind Turbines", Proceedings of the KWEA Spring Conference (2012)
- Musial, W, "Energy from Offshore Wind", the Offshore Technology Conference, pp.1888~1898 (2006)
- PIAnO (Process Integration, Automation and Optimization), "User’s Manual" (2012), PIDOTECH Inc
- Sailby, E, "Descriptive Sampling: A Better Approach to Monte Carlo Simulation", The Journal of the Operational Research Society, 41(12), pp.1133~1142 (1990)
- Alternatives and Modifications of Monopile Foundation or Its Installation Technique for Noise Mitigation, "Saleem, Z", TUDelft University, ~ (2011)
- Youn, B. D, "Eigenvector Dimension Reduction (EDR) Method for Sensitivity-Free Probability Analysis", Structural and Multidisciplinary Optimization, 37(1), pp.13~28 (2008)