Robust H/sub 2/ vibration control of beams with piezoelectric sensors and actuators

Foutsitzi, G.; Marinova, Daniela; Hadjigeorgiou, E.P.; Stavroulakis, Georgios Ε.

doi:10.1109/phycon.2003.1236806

Cited by 12 publications

(15 citation statements)

References 10 publications

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“…In particular, we would like to mention here the works on wave propagation in structures with auxetic core, see among others [18,19], and the possible beneficial influence of the auxetic core on active control of smart beams and structures (cf. our previous work with classical materials published in [20,21]). Relevant results will be published in the future elsewhere.…”

Section: Discussionmentioning

confidence: 98%

The Use of Auxetic Materials in Smart Structures

Hadjigeorgiou¹,

Stavroulakis²

2004

CMST

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This paper presents a study of the implications of using auxetic materials in the design of smart structures. By using auxetic materials as core and piezoelectric actuators as face layers to provide control forces, the problem of the shape control of sandwich beams is analyzed under loading conditions. The mechanical model is based on the shear deformable theory for beams and the linear theory of piezoelectricity. The numerical solution of the model is based on superconvergent (locking-free) finite elements for the beam theory, using Hamilton's principle. The optimal voltages of the piezo-actuators for shape control of a cantilever beams with classical and auxetic material are determined by using a genetic optimization procedure. Related numerical solutions of static problems demonstrate the role of auxetic material in the deformation, shape control and stress distribution of the beam and related twodimensional composite elastic structures.

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Section: Discussionmentioning

confidence: 98%

The Use of Auxetic Materials in Smart Structures

Hadjigeorgiou¹,

Stavroulakis²

2004

CMST

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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

Aggogeri¹,

Borboni²,

Merlo³

et al. 2016

Preprint

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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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“…The numerical solution of the model is based on the development of superconvergent finite elements using the form of exact solution of the Timoshenko beam theory and Hamilton's principle (see [10,[33][34][35][36]). …”

Section: Models Of Smart Beams and Structuresmentioning

confidence: 99%

“…The usage of MODE with a combination of continuous and discrete variables for the optimal design of the controller is presented. Beams are fundamental elements in many mechanisms and structures [9][10][11][12][13][14]. Therefore, the modeling of the dynamic behavior as well as the control of beams is a significant model problem.…”

Section: Introductionmentioning

confidence: 99%