Active tuning of vibration and wave propagation in elastic beams with periodically placed piezoelectric actuator/sensor pairs

A novel strategy is proposed to actively tune the vibration and wave propagation properties in elastic beams. By periodically placing the piezoelectric actuator/sensor pairs along the beam axis, an active periodic beam structure which exhibits special vibration and wave propagation properties such a...

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Veröffentlicht in:	Journal of sound and vibration 2017-04, Vol.393, p.14-29
Hauptverfasser:	Li, Fengming, Zhang, Chuanzeng, Liu, Chunchuan
Format:	Artikel
Sprache:	eng
Schlagworte:	active tuning Band gap band-gaps Control stability Control systems Controllers Elastic beams Elastic properties Equations of motion Feedback control Hamilton's principle Patches (structures) Periodic beam structures Periodic variations Piezoelectric actuators piezoelectric materials Piezoelectricity Positive feedback Propagation Sensors Stiffness Structural stability Vibration vibration and wave propagation Wave propagation
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