Abstract:

Nowadays PZT actuators are widely used in active noise and vibration control (ANVC). One of the research areas concerning PZT actuator concerns the optimisation of the piezoelectric actuator parameters, including size and location etc, to minimise sound radiated by a vibrating structure. Another practical application of PZT actuators in ANVC is using them to drive a panel which can be used as a control source. In this case, it is important to be able to maximise the radiated sound level. This paper presents procedures for optimising sizes and locations of PZT actuators on a resonant curved panel/cavity system to maximise the radiated sound power at a number of discrete frequencies.