1993
DOI: 10.1115/1.2930303
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Hybrid Active Vibration Control of Rotorbearing Systems Using Piezoelectric Actuators

Abstract: The vibrations of a flexible rotor are controlled using piezoelectric actuators. The controller includes active analog components and a hybrid interface with a digital computer. The computer utilizes a grid search algorithm to select feedback gains that minimize a vibration norm at a specific operating speed. These gains are then downloaded as active stiffnesses and dampings with a linear fit throughout the operating speed range to obtain a very effective vibration control.

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Cited by 62 publications
(27 citation statements)
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“…There are many precision positioning applications using piezoelectric actuators, e.g., scanning tunneling microscopy [1], active vibration control of rotor bearing systems [2], diamond turning machines [3], and piezoelectric voltage feedback for grinding tables [4]. However, the existence of nonlinear multipath hysteresis in piezoelectric material complicates the control of a piezoelectric actuator in high-precision application.…”
Section: Introductionmentioning
confidence: 99%
“…There are many precision positioning applications using piezoelectric actuators, e.g., scanning tunneling microscopy [1], active vibration control of rotor bearing systems [2], diamond turning machines [3], and piezoelectric voltage feedback for grinding tables [4]. However, the existence of nonlinear multipath hysteresis in piezoelectric material complicates the control of a piezoelectric actuator in high-precision application.…”
Section: Introductionmentioning
confidence: 99%
“…La implementación de control activo en maquinaria rotatoria proporciona ventajas para atenuar las amplitudes de vibración, durante el paro y arranque a través de velocidades críticas, y atenuar la vibración transitoria, tal como el desequilibrio repentino (pérdida de paletas, alabes, etc.). Palazzolo et al (1993), proponen el uso de actuadores piezoeléctricos (Figura 3.a) para el control activo de vibraciones. El uso de estos actuadores permite atenuar las amplitudes de vibración tanto en el transitorio como en velocidades constantes de operación, donde, los actuadores son modelados mediante resortes y amortiguadores; con la fuerza que se aplica se modifican las propiedades de rigidez y amortiguamiento del sistema.…”
Section: Introductionunclassified
“…Several contributions have demonstrated the feasibility of rotor vibration control by using stacked piezoelectric actuators that either act directly on the shaft, or in conjunction with conventional support bearings [25,26].…”
Section: Introductionmentioning
confidence: 99%