Study of airfoil gust response alleviation using an electro-magnetic dry friction damper. Part 1: Theory


Journal Article

An electro-magnetic controllable dry friction damper has been designed and numerically simulated. The gust response of a three degree-of-freedom typical airfoil section with a control surface using this non-linear damper has been studied theoretically. The effects of the different gust excitations and parameter variations of the non-linear damper on the non-linear aeroelastic response are discussed. The numerical results show the present electro-magnetic dry friction damper can be used to alleviate the dynamic response to both a periodic and a linear frequency sweep gust excitation, especially for the plunge and pitch responses. The results are also verified by an experimental investigation in a wind tunnel presented in a companion paper, Part 2. © 2003 Elsevier Ltd. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Tang, D; Gavin, HP; Dowell, EH

Published Date

  • January 22, 2004

Published In

Volume / Issue

  • 269 / 3-5

Start / End Page

  • 853 - 874

International Standard Serial Number (ISSN)

  • 0022-460X

Digital Object Identifier (DOI)

  • 10.1016/S0022-460X(03)00180-9

Citation Source

  • Scopus