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Active control of vibrations and noise of double wall cylindrical shells
Active control of vibrations and noise transmission of double wall composite cylindrical shells using pairs of spatially discrete piezoelectric actuators is investigated. The velocity feedback and sound pressure rate feedback control procedures are developed. The inner and outer shells which are separated by a soft core are modelled by Love's thin shell theory for laminate composite materials and the inputs are taken as stationary random pressures and/or random point forces. A Galerkin-like procedure is used to obtain solutions of the governing structural-acoustic equations. Parametric studies are performed to demonstrate the effect of actuator placement, actuator size, control gains, spillover, structural and acoustic damping characteristics.
Active control of vibrations and noise of double wall cylindrical shells
Active control of vibrations and noise transmission of double wall composite cylindrical shells using pairs of spatially discrete piezoelectric actuators is investigated. The velocity feedback and sound pressure rate feedback control procedures are developed. The inner and outer shells which are separated by a soft core are modelled by Love's thin shell theory for laminate composite materials and the inputs are taken as stationary random pressures and/or random point forces. A Galerkin-like procedure is used to obtain solutions of the governing structural-acoustic equations. Parametric studies are performed to demonstrate the effect of actuator placement, actuator size, control gains, spillover, structural and acoustic damping characteristics.
Active control of vibrations and noise of double wall cylindrical shells
Wang, C.Y. (Autor:in) / Vaicaitis, R. (Autor:in)
Journal of Sound and Vibration ; 216 ; 865-888
1998
24 Seiten, 40 Quellen
Aufsatz (Zeitschrift)
Englisch
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