Active damping by a local force feedback with piezoelectric actuators

Preumont, André; Dufour, Jean-Paul; Malekian, Christian

doi:10.2514/3.20848

Cited by 157 publications

(52 citation statements)

References 4 publications

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“…As shown in Table 6, state of the art technologies [41,42,43,44,45,46,47,48,49,50,51,52] highlight the potential benefits of the H2-LQG controller that was integrated in the proposed AVC device. In particular, the H2-LQG controller is one of the most promising regulators that provides an effective trade-off between displacement compensation and high accuracy performances in a broad frequency range (200–450 Hz).…”

Section: Discussionmentioning

confidence: 99%

Real-Time Performance of Mechatronic PZT Module Using Active Vibration Feedback Control

Aggogeri

Borboni

Merlo

et al. 2016

Sensors

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This paper proposes an innovative mechatronic piezo-actuated module to control vibrations in modern machine tools. Vibrations represent one of the main issues that seriously compromise the quality of the workpiece. The active vibration control (AVC) device is composed of a host part integrated with sensors and actuators synchronized by a regulator; it is able to make a self-assessment and adjust to alterations in the environment. In particular, an innovative smart actuator has been designed and developed to satisfy machining requirements during active vibration control. This study presents the mechatronic model based on the kinematic and dynamic analysis of the AVC device. To ensure a real time performance, a H2-LQG controller has been developed and validated by simulations involving a machine tool, PZT actuator and controller models. The Hardware in the Loop (HIL) architecture is adopted to control and attenuate the vibrations. A set of experimental tests has been performed to validate the AVC module on a commercial machine tool. The feasibility of the real time vibration damping is demonstrated and the simulation accuracy is evaluated.

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Section: Discussionmentioning

confidence: 99%

Real-Time Performance of Mechatronic PZT Module Using Active Vibration Feedback Control

Aggogeri

Borboni

Merlo

et al. 2016

Sensors

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“…In order to add some damping in the structure, let us use an integral force feedback (IFF) strategy 22,23 H r (s) = 1 s .…”

Section: Structural Control With Active Tendonsmentioning

confidence: 99%

Conceptual design and scaled experimental validation of an actively damped carbon tie rods support system for the stabilization of future particle collider superstructures

Collette

Tshilumba

Fueyo-Rosa

et al. 2013

Review of Scientific Instruments

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This paper presents a simple solution to increase the stability of the large superstructures supporting the final electromagnets of future linear particle collider. It consists of active carbon fiber tie rods, fixed at one end on the structure and at the other end to the detector through active tendons. In the first part of the paper, the solution has been tested on a finite element model of one half of the CLIC_ILD final focus structure. With a reasonable design, it is shown numerically that the compliance can be decreased by at least a factor 4, i.e., that the structure is 4 times more robust to technical noise at low frequency. Two additional features of the active rods are that they can also actively damp the structural resonances and realign the superstructures. The second part of the paper presents a successful experimental validation of the concept, applied to a scaled test bench, especially designed to contain the same modal characteristics as the full scale superstructure.

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“…and d rs is the Kronecker delta. Substituting Equation (3) into Equation (1), integrating the result over the beam's length L, and invoking the orthonormality conditions yields the modal equations of motion, (6) in which N r (t), (r = 1, 2, . .…”

Section: Mechanical System Modelingmentioning

confidence: 99%

Neural Network Discrimination in Intelligent Vibration Control

Song

Washington

2000

Journal of Intelligent Material Systems and Structures

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The overall goal of this study lies in the multi-mode structural vibration control for systems, based on spatial information. In order to accomplish this task, a neural network was designed to identify the shape of the dominant vibration mode by using properly located piezoelectric sensors. The network then chose a set of scaling gains for a fuzzy logic controller that had been optimally tuned for that particular mode's shape. Next, a fuzzy logic controller was employed to control the vibratory system. The novel technique was experimentally verified on an aluminum cantilever beam system that was augmented with two lead zirconate titanate (PZT) actuators and two PZT sensors. The optimized control strategy was then compared to traditional fuzzy logic control. Finally the mass of the plant was increased by over a factor of 1.5 and the same controller was used to adequately stop vibration.

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Active damping by a local force feedback with piezoelectric actuators

Cited by 157 publications

References 4 publications

Real-Time Performance of Mechatronic PZT Module Using Active Vibration Feedback Control

Real-Time Performance of Mechatronic PZT Module Using Active Vibration Feedback Control

Conceptual design and scaled experimental validation of an actively damped carbon tie rods support system for the stabilization of future particle collider superstructures

Neural Network Discrimination in Intelligent Vibration Control

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