PHONONIC BAND GAPS WITH COUPLED OSCILLATOR IN ONE-DIMENSIONAL MASS–SPRING STRUCTURES

  • Adesola Olayinka ADETUKASI Department of Civil Engineering, Yaba College of Technology, Yaba, Nigeria
  • Akintoye Olumide OYELADE Department of Civil and Environmental Engineering, University of Lagos, Akoka, Nigeria

Abstract

This research analysed theoretically the wave propagation in 1D mass spring system in an infinite lattice subjected to periodic force loading. Newton’s law and the periodic boundary conditions are employed to generate the equation of motion of the period chains. The introduction of extra springs into conventional spring mass, changes the dynamics of the structures. The proposed modified spring mass structure is able to significantly broaden bandwidth and enhance attenuation at the low frequency region. In addition, the effects of elastic foundation of the mass spring structures is investigated. It was found that a cut off frequency can be generated before propagation of wave occur in the system. 

Published
Nov 12, 2020
How to Cite
ADETUKASI, Adesola Olayinka; OYELADE, Akintoye Olumide. PHONONIC BAND GAPS WITH COUPLED OSCILLATOR IN ONE-DIMENSIONAL MASS–SPRING STRUCTURES. Romanian Journal of Mechanics, [S.l.], v. 5, n. 2, p. 3-9, nov. 2020. ISSN 2537-5229. Available at: <http://journals.srmta.ro/index.php/rjm/article/view/132>. Date accessed: 16 june 2021.