소형 수직축 풍력발전기의 내진검증 해석 = Seismic Qualification Analysis of a Vertical-Axis Wind Turbine

다국어 초록 (Multilingual Abstract)

The static and dynamic structural integrity qualification was performed through the seismic analysis of a small-size Savonius-type vertical wind turbine at dead weight plus wind load and seismic loads. The ANSYS finite element program was used to develop the FEM model of the wind turbine and to accomplish static, modal, and dynamic frequency response analyses. The stress of the wind turbine structure for each wind load and dead weight was calculated and combined by taking the square root of the sum of the squares (SRSS) to obtain static stresses. Seismic response spectrum analysis was also carried out in the horizontal (X and Y) and vertical (Z) directions to determine the response stress distribution for the required response spectrum (RRS) at safe-shutdown earthquake with a 5% damping (SSE-5%) condition. The stress resulting from the seismic analysis in each of the three directions was combined with the SRSS to yield dynamic stresses. These static and dynamic stresses were summed by using the same SRSS. Finally, this total stress was compared with the allowable stress design, which was calculated based on the requirements of the KBC 2009, KS C IEC 61400-1, and KS C IEC 61400-2 codes.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 내진해석
• 3. 결과 검토 및 결론
• REFERENCES

참고문헌 (Reference)

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3 "SEI/ASCE 7-02 Standard, Minimum Design Loads for Buildings and Other Structures"

4 Midorikawa, M., "Performance-Based Seismic Design Code for Buildings in Japan" 4 (4): 15-25, 2003

5 "KS C IEC 61400-2: 2014, Wind Turbines - Part 2: Small Wind Turbines"

6 "KS C IEC 61400-1: 2013, Wind Turbines - Part 1: Design Requirements"

7 "KBC 2009: Korean Building Code Structural, – Korean Ministry of Land, Infrastructure and Transportation"

8 "IEC 61400-2: 2006, Wind Turbines - Part 2: Design Requirements for Small Wind Turbines"

9 "IEC 61400-1: 2005, Wind Turbines - Part 1: Design Requirements"

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11 Jeong, S. H., "Comparison of Provisions for Seismic Analysis Methods in ASCE 710 and KBC 2009" 251-262, 2011

12 Fragiadakis, M., "An Overview to Structural Seismic Design Optimization Frameworks" 89 (89): 1155-1165, 2011

13 Won, J. B., "A Study on Vibration Characteristics of the 1.5 MW Wind Turbine under Earthquake" 2008

14 Nakashima, M., "A Partial View of Japanese Post-Kobe Seismic Design and Construction Practices" 4 (4): 3-13, 2003