Analysis of noise transmission through the window glass plate and its control using the Macro Fiber Composite actuator

Glass windows are integral parts of buildings for several centuries. Unfortunately, they represent a major source of the interior noise, since they usually do not represent an effective sound barrier due to their low flexural rigidity. The aim of this work is to understand the sound transmission through the glass window and to analyze and demonstrate a new approach to reduce the noise transmission through the glass plate using a Macro Fiber Composite (MFC) piezoelectric actuator. The principle of Active Piezoelectric Shunt Damping (APSD) is used to achieve the required suppression of the noise transmission‥ The system is modeled by Finite Element Method (FEM) numerical simulations. The results are experimentally verified using Digital Holographic Interferometry (DHI).