SOUND TRANSMISSION ACROSS A FINITE SIMPLY SUPPORTED DOUBLE-LAMINATED COMPOSITE PLATE WITH ENCLOSED AIR CAVITY

Authors

  • Pham Ngoc Thanh Viettri University of Industry, Viettri, Phutho, Vietnam
  • Tran Ich Thinh

DOI:

https://doi.org/10.15625/2525-2518/57/6/13838

Keywords:

Keywords, Double-laminated composite plate, Sound transmission loss, Simply supported boundary.

Abstract

ABSTRACT

Sound transmission across a finite orthotropic laminated double-composite plate with enclosed air cavity on an infinite acoustic rigid baffle is investigated analytically. Sound velocity potential method combined with simply supported boundary conditions is used instead of traditional methods, has good scalability and is important for studies of acoustic vibration of structures. The sound transmission loss is calculated from the ratio of incident to transmitted acoustic powers. Specifically, the focus is placed on the effects of several key system parameters on sound transmission including the plate dimensions, the laminate configurations, the boundary conditions, and the composite materials are systematically examined.

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Published

2019-11-20

Issue

Section

Mechanical Engineering - Mechatronics