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중력의 영향이 고려된 회전 블레이드의 동적 안정성 해석Dynamic Stability Analysis of a Rotating Blade Considering Gravity Effect
- Other Titles
- Dynamic Stability Analysis of a Rotating Blade Considering Gravity Effect
- Issue Date
- Nov-2010
- Publisher
- 한국소음진동공학회
- Keywords
- Dynamic Stability; Rotating Cantilever Beam; Wind Turbine Blade; Gravity Effect; Motion Induced Vibration; Contour Graph; 동적 안정성; 회전 외팔보; 풍력 터빈 블레이드; 중력 영향; 강성 변화 운동; 등고선 그래프
- Citation
- 한국소음진동공학회논문집, v.20, no.11, pp 1052 - 1057
- Pages
- 6
- Indexed
- KCI
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 20
- Number
- 11
- Start Page
- 1052
- End Page
- 1057
- ISSN
- 1598-2785
2287-5476
- Abstract
- Dynamic stability of rotating blade considering gravity effect is investigated in this paper. Equations of motion for the beam is derived by employing hybrid deformation variable method and transformed into dimensionless form. The present modeling method is verified by RecurDyn. Stability diagrams are presented to show the influence of the configuration of the beam and angular velocity on the dynamic stability by applying Floquet's theory. Since the natural frequencies are varied when the blade has rotating motion, it is found that relatively large unstable regions exist approximately 1.1 times as high as the first bending natural frequency and half of the sum of first and second bending natural frequency.
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Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
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