Study on the Dynamics of a Rotor in a Maneuvering Aircraft-Reference-Cited by-同舟云学术

Study on the Dynamics of a Rotor in a Maneuvering Aircraft

Published:2003-06-18 Issue:3 Volume:125 Page:324-327
ISSN:1048-9002
Container-title:Journal of Vibration and Acoustics
language:en
Short-container-title:

Author:

Lin Fusheng¹,Meng Guang¹

Affiliation:

1. State Key Lab of Vibration, Shock & Noise, Shanghai Jiao Tong University, Shanghai 200030, P. R. C.

Abstract

This paper shows how the dynamics of a rotor in a maneuvering aircraft changes according to the operation of the aircraft. The mathematical model of an unbalanced rotor system located in the maneuvering aircraft is derived. The dynamic characteristics of the rotor running at a constant angular speed or a constant acceleration are studied under the assumptions that the aircraft maneuvers only in a vertical plane and that the pitching angle and the flight path inclination of the aircraft are equal. The effects of gravity and unbalance parameter are considered. The results show that the unbalanced response of a rotor in an aircraft is obviously influenced by the aircraft’s flying status.

Publisher

ASME International

Subject

General Engineering

Link

http://asmedigitalcollection.asme.org/vibrationacoustics/article-pdf/125/3/324/5827598/324_1.pdf

Reference7 articles.

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2. Ganesan, R., and Sankar, T. S., 1993, “Resonant Oscillations and Stability of Asymmetric Rotors,” Proc. of the 14th Biennial ASME Conference on Mechanical Vibration and Noise, ASME DE, 56, pp. 19–22.

3. Spence, A. M., and Cele, R., 1995, “Coupled Rotor Fuselage Dynamics and Aero-Elasticity in Turning Flight,” J. Am. Helicopter Soc., 40(1), pp. 47–58.

4. Cao, Y. , 1999, “Modelling the Unsteady Aerodynamic Forces of a Maneuvering Rotor,” Aircraft Engineering and Aerospace Technol., 71(5), pp. 444–450.

5. Bagai, A., Leishman, J. G., and Park, J., 1999, “Aerodynamic Analysis of a Helicopter in Steady Maneuvering Flight Using a Free-Vortex Rotor Wake Model,” J. Am. Helicopter Soc., 44(2), pp. 109–120.

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