Modulating Band Gap Structure by Parametric Excitations

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Xiao-Dong Yang
  • Qing-Dian Cui
  • Ying-Jing Qian
  • Wei Zhang
  • C. W. Lim

Detail(s)

Original languageEnglish
Article number061012
Journal / PublicationJournal of Applied Mechanics, Transactions ASME
Volume85
Issue number6
Early online date12 Apr 2018
Publication statusPublished - Jun 2018

Abstract

Artificial periodic structures are used to control spatial and spectral properties of acoustic or elastic waves. The ability to exploit band gap structure creatively develops a new route to achieve excellently manipulated wave properties. In this study, we introduce a paradigm for a type of real-time band gap modulation technique based on parametric excitations. The longitudinal wave of one-dimensional (1D) spring-mass systems that undergo transverse periodic vibrations is investigated, in which the high-frequency vibration modes are considered as parametric excitation to provide pseudo-stiffness to the longitudinal elastic wave in the propagating direction. Both analytical and numerical methods are used to elucidate the versatility and efficiency of the proposed real-time dynamic modulating technique.

Research Area(s)

  • Band gap, dynamic modulation, metamaterial, parametric excitation

Citation Format(s)

Modulating Band Gap Structure by Parametric Excitations. / Yang, Xiao-Dong; Cui, Qing-Dian; Qian, Ying-Jing; Zhang, Wei; Lim, C. W.

In: Journal of Applied Mechanics, Transactions ASME, Vol. 85, No. 6, 061012, 06.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review