Vibroacoustic behavior of a clamped double-composite plate filled with an air cavity in thermal environment = Ứng xử dao động âm qua tấm kép composite có khoang khí ngàm bốn cạnh trong môi trường nhiệt

Abstract

This paper is a study of the vibroacoustic behavior of a finite laminated double - composite rectangular plate filled with an air cavity under a sound wave excitation in thermal envi-ronments is investigated analytically. Using the method of modal decomposition, a double Fou-rier series solution is obtained to characterize the vibroacoustic performance of the structure. The sound transmission loss (STL) is calculated from the ratio of incident to transmitted acous-tic powers.