Aeroelastic Tailoring of Helicopter Blades-Reference-Cited by-同舟云学术

Aeroelastic Tailoring of Helicopter Blades

Published:2015-11-01 Issue:6 Volume:10 Page:
ISSN:1555-1415
Container-title:Journal of Computational and Nonlinear Dynamics
language:en
Short-container-title:

Author:

Cornette Donatien¹,Kerdreux Benjamin²,Michon Guilhem³,Gourinat Yves⁴

Affiliation:

1. Dynamics Department, Airbus Helicopters, Marignane Cedex F-13725, France e-mail:

2. Dynamics Engineer Dynamics Department, Airbus Helicopters, Marignane Cedex F-13725, France e-mail:

3. Associate Professor Université de Toulouse, ISAE, ICA (Institut Clément Ader), Toulouse F-31055, France e-mail:

4. Professor Université de Toulouse, ISAE, ICA (Institut Clément Ader), Toulouse F-31055, France e-mail:

Abstract

The dynamic loads transmitted from the rotor to the airframe are responsible for vibrations, discomfort and alternate stress on components. A new and promising way to minimize vibration is to reduce dynamic loads at their source by performing an aeroelastic optimization of the rotor. This optimization uses couplings between the flapwise-bending motion and the torsion motion. The impacts of elastic couplings (composite anisotropy) and inertial couplings (center-of-gravity offset) on blade dynamic behavior and on dynamic loads are evaluated in this paper. First, analytical results, based on a purely linear modal approach, are given to understand the influence of these couplings on blade dynamic behavior. Then, a complete nonlinear aeroelastic model of the rotor, including elastic and inertial couplings, is derived. Finally, this last model is used to improve a simplified but representative blade (homogeneous beam with constant chord) and results are presented.

Publisher

ASME International

Subject

Applied Mathematics,Mechanical Engineering,Control and Systems Engineering,Applied Mathematics,Mechanical Engineering,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/computationalnonlinear/article-pdf/doi/10.1115/1.4027717/6106493/cnd_010_06_061001.pdf

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3. Priems, M., Dreher, S., Konstanzer, P., Hoffmann, F., Kerdreux, B., and Jouve, J., 2012, “Active Cabin Vibration Control for Light Single and Twin Engine Helicopters,” American Helicopter Society 68th Annual Forum, Fort Worth, TX, May 1–3.

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