Sound Transmission Loss of a Metal Panel With Rib Reinforcements and Pasted Damping

Abstract

The sound transmission losses (STL) of a metal panel with rib reinforcement (MPRR) are studied by both an experimental method and a simulation approach. The experimental method and data processing technique for obtaining STL are presented. Six MPRRs with different number of rib reinforcement and different geometry size of rib reinforcement, and six MPRRs with different type of the pasted damping material are designed and anufactured, and their STL performances are investigated by experimental method. The calculation model for STL of a MPRR is proposed and the calculated STL are compared favorably with the experimental data, which validates the proposed model. The analytical methods and conclusions are instructive for the design and the tuning of STL of MPRRs.

Impact of magnetic mounting for inertial actuators in active control applications

“…Numerous applications use thin panels and shells as sound barriers to reduce the spread of acoustic noise [1][2][3][4][5][6]. To improve the effectiveness of these barriers, active control systems with inertial actuators can are used.…”

Experimental investigation on inertial actuators arrangement optimization for active control applications

“…Numerous applications employ thin panels and shells to act as noise barriers, which helps to reduce the propagation of sound waves [1][2][3][4][5][6]. To improve the efficiency of such barriers, active control systems using inertial actuators can be used.…”

Performance Analysis of Active Structural Acoustic Control Applied to a Washing Machine

“…Such limitations have influenced interest in active systems, which may be very effective for low frequencies and complement passive methods in their weak points [ 3 , 4 , 5 ]. A number of single-panel solutions have been developed in recent years [ 6 , 7 , 8 ], where vibrations of a thin barrier were controlled by actuators in order to reduce noise transmission and radiation. However, the control of 3-dimensional shells and enclosures is much more demanding.…”