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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.21 No.2
- 발행연도
- 2007.2
- 수록면
- 251 - 263 (13page)
이용수
초록· 키워드
오류제보하기
An analytical framework has been developed to examine integrally-twisted helicopter blades and their aero elastic behavior during forward flight. This is accomplished by modifying an existing multi-body dynamics code, DYMORE, with active material constitutive relations. An integral twist-actuated rotor blade was designed within this framework. A four-bladed fullyarticulated active rotor system was built and tested to demonstrate the present concept in forward flight. The impact of integral twist actuation on fixed and rotating system loads during forward flight is evaluated by the proposed analysis. While discrepancies are found in the amplitude of the loads under actuation, the predicted trend of load variation with respect to its control phase correlates well with the experiments. Factors affecting the accuracy of the present analysis against the experimental results are described in detail. Based on the present discussion, an improved analysis is planned to be conducted.
목차
1. Introduction
2. Analytical Framework
3. Open-Loop Forward Flight Results
4. Improved Analysis Results
5. Conclusions
Acknowledgments
References
참고문헌 (22)
참고문헌 신청
Bauchau, O. A., 1998, "Computational Schemes for Flexible, Nonlinear Multi-Body Systems," Multi-body Dynamics, Vol.2, pp.169~225.
Bielawa, R., 1992, Rotary Wing Structural Dynamics and Aeroelasticity, American Institute of Aeronautics and Astronautics.
Cesnik, C. E. S., Shin, S. J., Wilkie, W. K., Wilbur, M. L. and Mirick, P. H., 1999, "Modeling, Design, and Testing of the NASA/Army/MIT Active Twist Rotor Prototype Blade," American Helicopter Society 55th Annual Forum, Montreal, Canada.
Cesnik, C. E. S. and Shin, S. J. 2001, "On the Modeling of Integrally Actuated Helicopter Blades," International Journal of Solids and Structures, Vol.38, No.10~13, pp.1765~1789.
Cesnik, C. E. S., Shin, S. J. and Wilbur, M. L., 2001, "Dynamic Response of Active Twist Rotor Blades," Smart Materials and Structrues-Special Issue on Rotorcraft Application, Vo. 10, pp.62~76.
Bielawa, R., 1992, Rotary Wing Structural Dynamics and Aeroelasticity, American Institute of Aeronautics and Astronautics.
Cesnik, C. E. S., Shin, S. J., Wilkie, W. K., Wilbur, M. L. and Mirick, P. H., 1999, "Modeling, Design, and Testing of the NASA/Army/MIT Active Twist Rotor Prototype Blade," American Helicopter Society 55th Annual Forum, Montreal, Canada.
Cesnik, C. E. S. and Shin, S. J. 2001, "On the Modeling of Integrally Actuated Helicopter Blades," International Journal of Solids and Structures, Vol.38, No.10~13, pp.1765~1789.
Cesnik, C. E. S., Shin, S. J. and Wilbur, M. L., 2001, "Dynamic Response of Active Twist Rotor Blades," Smart Materials and Structrues-Special Issue on Rotorcraft Application, Vo. 10, pp.62~76.
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