弹性耦合对复合材料旋翼前飞气弹响应及载荷的影响

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2007, Vol. 28 ›› Issue (3): 605-609.

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Aeroelastic Response and Hub Load of Composite Hingeless Rotor in Forward Flight with Elastic Couplings

YIN Wei-long,XIANG Jin-wu

School of Aeronautical Science and Engineering, Beijing University of Aeronautics and  Astronautics

Received:2006-04-10 Revised:2006-07-07 Online:2007-05-10 Published:2007-05-10
Contact: XIANG Jinwu

Abstract

Abstract:

The aeroelastic response and hub load of a composite hingeless rotor in forward flight with elastic couplings are investigated in this paper. The structural model in this analysis includes the effects of transverse shear deformation, out of plane warping, and aeroelastic coupling. The aerodynamic loads acting on the blade are obtained using quasi-steady aerodynamic theory. Dress model is for the rotor inflow distribution. A 21-DOF beam finite element, including transverse shear DOF and warping DOF, is developed for analysis.

Key words: helicopter, , composite , blade, , elastic , coupling, , aeroelastic , response, , vibratory , load

CLC Number:

V215.3

YIN Wei-long;XIANG Jin-wu. Aeroelastic Response and Hub Load of Composite Hingeless Rotor in Forward Flight with Elastic Couplings[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2007, 28(3): 605-609.

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Aeroelastic Response and Hub Load of Composite Hingeless Rotor in Forward Flight with Elastic Couplings

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