Piezoelectric Actuator Models for Active Sound and Vibration Control of Cylinders

Analytical models for piezoelectric actuators, adapted from flat plate concepts, are developed for noise and vibration control applications associated with vibrating circular cylinders. The loadings applied to the cylinder by the piezoelectric actuators for the bending and in-plane force models are approximated by line moment and line force distributions, respectively, acting on the pe rimeter of the actuator patch area. Coupling between the cylinder and interior acoustic cavity is ex amined by studying the modal spectra, particularly for the low-order cylinder modes that couple effi ciently with the cavity at low frequencies. Within the scope of this study, the in-plane force model produced a more favorable distribution of low-order modes, necessary for efficient interior noise control, than did the bending model.

[1]  Scott D. Snyder,et al.  Active control of interior noise in model aircraft fuselages using piezoceramic actuators , 1990 .

[2]  J. Jia,et al.  Formulation of a Laminated Shell Theory Incorporating Embedded Distributed Actuators , 1990 .

[3]  C. Fuller,et al.  Piezoelectric Actuators for Distributed Vibration Excitation of Thin Plates , 1991 .

[4]  Miguel C. Junger,et al.  Sound, Structures, and Their Interaction , 1972 .

[5]  F. Fahy,et al.  Sound and Structural Vibration: Radiation, Transmission and Response , 1987 .

[6]  P. W. Smith,et al.  Phase Velocities and Displacement Characteristics of Free Waves in a Thin Cylindrical Shell , 1955 .

[7]  A. Kalnins,et al.  Thin elastic shells , 1967 .

[8]  Horn-Sen Tzou,et al.  Theoretical analysis of a multi-layered thin shell coupled with piezoelectric shell actuators for distributed vibration controls , 1989 .

[9]  Sylvie Lefebvre.  Active control of interior noise using piezoelectric actuators in a large-scale composite fuselage model , 1991 .

[10]  Robert L. Clark,et al.  Characterization of multiple piezoelectric actuators for structural excitation , 1990 .

[11]  Gary P. Gibbs,et al.  Simultaneous active control of flexural and extension power flow in thin beams , 1993 .

[12]  Richard J. Silcox,et al.  Simultaneous Active Control of Flexural and Extensional Waves in Beams , 1990 .

[13]  E. Crawley,et al.  Use of piezoelectric actuators as elements of intelligent structures , 1987 .

[14]  R. J. Silcox,et al.  Propeller modelling effects on interior noise in cylindrical cavities with application to active control , 1989 .