Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Validation of the aeromechanics for hingeless rotor using geometrically exact beam model

기하학적 정밀 보 모델을 이용한 무힌지 로터 구조/공력 하중 검증

  • 류한열 (LIG 넥스원 PGM기계융합연구소)
  • Received : 2022.10.13
  • Accepted : 2022.11.21
  • Published : 2023.02.28
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Abstract

This paper studied HART II in descending flight using rotorcraft analysis code based on geometrically exact beam (GEB) model. The present GEB model expressed by a mixed variational formulation could capture the geometrically nonlinear behavior of the blade without arbitrary assumptions. In previous results, correlation of airloads with structural moments for HART II was not as good as blade deflections. However, in present results, predictions of airloads and structural loads are fairly correlated with measured data.

본 논문에서는 기 개발된 로터 블레이드 해석 모델 중 구조 모델을 보완하여 기존에 수행한 HART II의 연구결과와 비교하였다. 구조 모델은 혼합변분 정식화 기반의 기하학적 정밀 보 모델이며, 블레이드의 기하학적 비선형 거동을 정밀하게 예측할 수 있다. 기존 해석 결과에서는 비틀림 변형과 구조하중 결과에서 실험결과 대비 위상차가 발생하였는데 본 연구에서는 기존 결과 대비 위상차가 현저히 감소한 결과를 도출하였다.

Keywords

Acknowledgement

본 연구에 사용한 실험 결과를 도출한 HART II team의 노고에 감사함을 전합니다.

References

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