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Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 348042, 7 pages
http://dx.doi.org/10.1155/2013/348042
Research Article

Vibration Suppression of an Axially Moving String with Transverse Wind Loadings by a Nonlinear Energy Sink

Department of Astronautics, Shenyang Aerospace University, Shenyang 110136, China

Received 23 July 2013; Accepted 29 August 2013

Academic Editor: Dumitru Baleanu

Copyright © 2013 Ye-Wei Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nonlinear targeted energy transfer (TET) is applied to suppress the excessive vibration of an axially moving string with transverse wind loads. The coupling dynamic equations used are modeled by a nonlinear energy sink (NES) attached to the string to absorb vibrational energy. By a two-term Galerkin procedure, the equations are discretized, and the effects of vibration suppression by numerical methods are demonstrated. Results show that the NES can effectively suppress the vibration of the axially moving string with transverse wind loadings, thereby protecting the string from excessive movement.