Structure borne noise control of a clamped panel using shunt damping system

•To reduce the noise radiated due to a vibrating structure.•A panel structure attached piezoelectric materials with clamped ends.•To predict the structure-borne noise in the panel attached piezoelectric materials, the mechanical and electrical systems were configured.•To control the structure-borne noise of the panel, a shunt damping circuit was designed using piezoelectric materials.•To reduce the structure-borne noise of the vibrating structure, a piezoelectric shunt damping circuit was designed using design of experiments (DOE).•To control noise, the (3,1) mode for radiated noise was selected as an objective frequency based on the sound quality in the design of the piezoelectric shunt damping system.•The piezoelectric shunt damping system was experimentally determined to reduce noise by 5dB at the objective frequency. This study was conducted to predict the noise radiated from a vibrating structure, with a piezoelectric material being attached to a clamped panel structure to reduce radiated noise. To predict the structure-borne noise in the panel using piezoelectric materials, a motion equation of the piezoelectric shunt damping system, including the electromechanical system, was derived using a Lagrange equation. The structure born noise was reduced using noise control on the panel structure through the design of a shunt circuit for piezoelectric materials. In particular, the target frequency was selected based on the sound quality determined by experimental results for controlling the structure borne noise. To reduce the structure-borne noise of a vibration structure, the piezoelectric shunt damping system was designed using the optimal design of circuit elements and the design of experiments method. The position for attaching the piezoelectric system was determined for noise control of the (3,1) mode of the radiated noise. Finally, through the attachment of the piezoelectric shunt damping system, the noise was reduced by 5 dB at the target frequency experimentally.