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초기 비틀림각이 고려된 블레이드-축 통합 시스템의 동적 특성Dynamic Characteristic of Coupled Pre-twist Blade and Shaft System
- Other Titles
- Dynamic Characteristic of Coupled Pre-twist Blade and Shaft System
- Issue Date
- 2012
- Publisher
- 한국소음진동공학회
- Keywords
- Assumed Mode Method(모드 가정법); Lagrange Equation(라그랑지 방정식); Natural Frequency (고유진동수); Pre-twist Angle(초기 비틀림각); Rotor-blade System(로터-블레이드 시스템)
- Citation
- 한국소음진동공학회논문집, v.22, no.7, pp.659 - 666
- Indexed
- KCI
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 22
- Number
- 7
- Start Page
- 659
- End Page
- 666
- ISSN
- 1598-2785
- Abstract
- A nonlinear dynamic model for the shaft-disk-blade unit is developed in this study. In this regard, the rotating flexible blade, with a pre-twist angle, attached to a rigid disk driven by a shaft which is flexible in torsion is developed. The rotor-blade coupled model is derived using Lagrange equation in conjunction with the assumed mode method to discretize the blade deformation. The equations of motion are analyzed based on the small deformation theory for the blade and shaft torsional deformation to obtain the system natural frequencies for various system parameters.
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