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논문 기본 정보

자료유형
학술대회자료
저자정보
박성철 (가천대학교) 육래형 (울산대학교) 하광태 (삼성중공업) 정재호 (가천대학교)
저널정보
한국유체기계학회 한국유체기계학회 학술대회 논문집 2022년 한국유체기계학회 동계학술대회
발행연도
2022.11
수록면
429 - 434 (6page)

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The aerodynamic design of blades for wind power generation is generally performed by the BEMT (Blade Element Momentum Theory) method, and the design optimization process is performed according to the evaluation results. After that, when the blade aerodynamics for wind power generation and the structural integrated design are completed, the effectiveness of the design will be verified through the structural soundness evaluation according to the international standard (IEC 61400). In this case, a history of extreme and fatigue loads acting on the blade root and specific cross section during the design life is required. The load acting on the blade is obtained by system load calculation, and the longitudinal mass and rigidity distribution of the 3D beam model used during integrated load analysis is 2-dimensional cross-section analysis (2-Dimensional Cross-). It can be obtained by the sectional analysis) method. The system integrated load analysis part defines DLC (Design Load Cases) with reference to the application criteria and can then derive the results of the extreme and fatigue load analysis acting on the blade through Aero-Elastic analysis. A structural design part applies the derived design load and performs a critical deflection evaluation, ultimate limit state, and fatigue limit state evaluation through finite element analysis.
In this research, the results of the aerodynamic-structure integration design of the 20 MW blade were presented. Furthermore, a rotor blade cannot be designed independently, because its ultimate and fatigue loads are highly dependent on system operating conditions. Thus, 20 MW wind turbine system was also developed for the system integrated load calculations. All calculations were performed in accordance with IEC 61400-1.

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ABSTRACT
1. 서론
2. 20MW 초대용량 풍력발전시스템 설계
3. 극한하중평가
4. 결론
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