풍력에너지저널 (Journal of Wind Energy)

  • 제13권4호
  • /
  • Pages.90-97
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  • 2022
  • /
  • 2093-5099(pISSN)
  • /
  • 2733-9467(eISSN)
한국풍력에너지학회 (Korea Wind Energy Association)
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8 MW급 대용량 풍력발전기용 피치 감속기 진동특성에 관한 연구

A Study on the Vibration Characteristics of Pitch Gearbox for 8 MW Large Capacity Wind Turbines

  • 장서원 (중원대학교, 융합공학과) ;
  • 박세호 (중원대학교, 융합공학과) ;
  • 이형우 (중원대학교, 항공기계공학과)
  • 투고 : 2022.10.22
  • 심사 : 2022.11.28
  • 발행 : 2022.12.30
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초록

In this paper, a study on the vibration characteristics of the pitch gearbox of 8 MW large capacity wind turbines was conducted. The vibration analysis method of the pitch gearbox was proposed by combining the planetary gear train vibration model with the housing and carrier finite element model using the substructural synthesis method. We modeled the vibration excitation source for mass unbalance, gear mesh frequency, and bearing defect error action on the pitch gearbox, and performed a critical speed analysis. As a result of analyzing the critical speed of the pitch gearbox, the critical speed for the excitation source did not occur within the operation speed (84.87 rpm). In addition, as a result of applying 10 %, 20 %, …, 100 % of the largest load duration distribution (LDD) load, it was found that the bearing stiffness and the primary natural frequency were larger as the LDD load was larger. The primary natural frequency was 81.47 Hz for the lowest load among LDD data, which exceeded an operating speed of 84.87 rpm (5.09 Hz), so it was found that vibration caused by the change of LDD load did not occur in the operating speed range.

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과제정보

이 논문은 산업통산부 한국에너지기술평가원이 지원한 '신재생에너지 핵심 기술개발 사업'으로 지원을 받아 수행된 연구 결과입니다. (No. 20213030020020)

참고문헌

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