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Analytical structural behaviour of elastic flapping wings under the actuator effect

Published online by Cambridge University Press:  04 July 2018

H. Zare ,
Seid H. Pourtakdoust  and
A. Bighashdel
H. Zare
Affiliation:
Center for Research and Development in Space Science and Technology, Sharif University of Technology, Tehran- Iran
Seid H. Pourtakdoust*
Affiliation:
Center for Research and Development in Space Science and Technology, Sharif University of Technology, Tehran- Iran
A. Bighashdel
Affiliation:
Center for Research and Development in Space Science and Technology, Sharif University of Technology, Tehran- Iran
*
[email protected]
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Abstract

The effect of inertial forces on the Structural Dynamics (SD) behaviour of Elastic Flapping Wings (EFWs) is investigated. In this regard, an analytical modal-based SD solution of EFW undergoing a prescribed rigid body motion is initially derived. The formulated initial-value problem is solved analytically to study the EFW structural responses, and sensitivity with respect to EFWs’ key parameters. As a case study, a rectangular wing undergoing a prescribed sinusoidal motion is simulated. The analytical solution is derived for the first time and helps towards a conceptual understanding of the overall EFW's SD behaviour and its analysis required in their designs. Specifically, the EFW transient and steady response in on-off servo condition is also attended.

Keywords

Elastic flapping wingstructural dynamicsanalytical solutionmodal approach
Type
Research Article
Information
The Aeronautical Journal , Volume 122 , Issue 1254 , August 2018 , pp. 1176 - 1198
Copyright
Copyright © Royal Aeronautical Society 2018 

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