한국태양에너지학회:학술대회논문집

The Korean Solar Energy Society (한국태양에너지학회)
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A Study on the Dynamic Response of Cylindrical Wind Turbine Tower Considering Added Mass

부가수질량을 고려한 실린더형 풍력발전기타워의 동적응답연구

  • Son, Choong-Yul (School of Mechnial Engineering, Inha University) ;
  • Lee, Kang-Su (Dept. of Naval Architecture, Graduate School, Inha University) ;
  • Lee, Jung-Tak (Dept. of Naval Architecture. Graduate School. Inha University)
  • 손충렬 (인하대학교 기계공학부) ;
  • 이강수 (태성에스엔이 ANSYS팀) ;
  • 이정탁 (인하대학교 대학원 선박공학과)
  • Published : 2008.04.12
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Abstract

Unlike structures in the air, the vibration analysis of a submerged or floating structure such as offshore structures is possibly only when the fluid-structures is understood, as the whole or part of the structure is in contact with water. Through the comparision between the experimental result and the finite element analysis result for a simple cylindrical model, it was verified that an added mass effects on the cylindrical structure. Using the commercial FEA program ANSYS(v.11.0), underwater added mass was superposed on the mass matrix of the structure. A frequency response analysis of forced vibration in the frequency considered the dynamic load was also performed. It was proposed to find the several important modes of resonance peak for these fixed cylindrical type structures. Furthermore, it is expected that the analysis method and the data in this study can be applied to a dynamic structural design and dynamic performance evaluation for the ground and marine purpose of power generator by wind.

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