The optimal design of piezoelectric actuators for acoustic control

A new optimization approach is presented for acoustic control, in which shape, location, size and number of piezoelectric actuators are optimized in a similar way with similar complexity. A criterion that the authors believe where the main resonant frequencies, such as (1, 1) order, (2, 2) order and so on, play important roles in acoustic control at a given frequency band is applied. The examples given show that the approach is viable and practical and that the criterion proved efficient. Finally, the control sensitivity analysis to all involved factors including location, size, number and sequence of patch arrangements are performed. The result demonstrates that number and location are the most important factors.