티모센코 보 이론에 따른 초기 비틀림각을 갖는 경사기능재 블레이드의 진동 해석
- Title
- 티모센코 보 이론에 따른 초기 비틀림각을 갖는 경사기능재 블레이드의 진동 해석
- Other Titles
- Vibration Analysis of Pre-twisted Blades with Functionally Graded Material Properties Based on Timoshenko Beam Theory
- Author
- 유홍희
- Keywords
- 굽힘진동; 초기 비틀림각; 경사기능재료; 티모센코 보 이론; 고유진동수; Bending vibration; Pre-twist angle; Functionally graded material; Timoshenko beam theory; Natural Frequency
- Issue Date
- 2014-10
- Publisher
- 한국소음진동공학회
- Citation
- 한국소음진동공학회 논문집, 2014, 10, P.285-287
- Abstract
- Equations of motion for the vibration analysis of rotating pre-twisted beams with functionally graded material properties are derived in this paper. Based on Timoshenko beam theory, the effects of shear and rotary inertia are considered. The pre-twisted beam has a rectangular cross-section and is mounted on a rotating rigid hub with a setting angle. Functionally graded material (FGM)properties are considered along the height direction of the beam. The equations of stretching and bending motion are derived by Kane’s method employing hybrid deformation variables. To validate the derived equations, natural frequencies of a rotating FGM pre-twisted beam are compared to those obtained by a commercial software ANSYS. The effects of the pre-twisted angle, slenderness ratio, hub radius, volume fraction exponent, and angular speed on the modal characteristics of the system are investigated with the proposed model.
- URI
- http://www.dbpia.co.kr/Journal/ArticleDetail/NODE02506517http://hdl.handle.net/20.500.11754/48645
- ISSN
- 1598-2548
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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