TY - JOUR
AU - Cattafesta III, Louis N.
AB - The characteristics of cantilever piezoelectric actuators are investigated both theoretically and experimentally. The type of actuators considered consist of a single sheet of piezoceramic material bounded to a shim--termed a `unimorph' design. A theoretical model, based on beam theory, is developed to predict the static and dynamic behavior of the actuator. The model predictions compare favorably to measurements of the actuator transfer function. A sample application to noise reduction of flow-induced cavity oscillations at low subsonic speeds is described. Use of the actuators in an open-loop control system resulted in 18 and 25 dB attenuation in the broadband and primary tone sound pressure levels, respectively.
TI - Piezoelectric actuators for fluid-flow control
JF - Proceedings of SPIE
DO - 10.1117/12.274658
DA - 1997-05-23
UR - https://www.deepdyve.com/lp/spie/piezoelectric-actuators-for-fluid-flow-control-1KKxqHsuqW
SP - 147
EP - 157
VL - 3044
IS - 1
DP - DeepDyve
ER -