Relevant bibliographies by topics / Piezoelectric stack actuator. eng

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  1. Journal articles

Academic literature on the topic 'Piezoelectric stack actuator. eng'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Piezoelectric stack actuator. eng"

1

Zaehringer, Sandy, Maximilian Spornraft, and Norbert Schwesinger. "Piezoelectric Bulk Material for the Fabrication of Membrane Actuators Using Surface Electrodes for Actuation." Applied Mechanics and Materials 404 (September 2013): 682–87. http://dx.doi.org/10.4028/www.scientific.net/amm.404.682.

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Using piezoelectric bulk material for manufacturing membrane actuators offers several advantages. Instead of manufacturing e.g. a silicon membrane and then either depositing a piezoelectric thinfilm actuator or mounting a piezo disc or stack to the silicon membrane, it is possible to use the piezoelectric material itself as membrane. Circular lead zirconate titanate (PZT) discs were adapted to silicon surface micromachining technologies. By depositing interdigitated electrode layouts several actuators were structured on one substrate. Those inderdigitated electrode layouts, when actuated, cause an inhomogeneous electric field distribution and thus cause an inhomogeneous mechanical stress distribution within the PZT-substrate. This forces the PZT to deflect in those actuated areas, without the usually needed passive membrane.
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2

Yang, Jingjing, Qiang Zhang, and Taojin Xu. "A Novel Piezoelectric Ceramic Actuator with Scissoring Composite Vibration for Medical Applications." Applied Sciences 9, no. 21 (2019): 4637. http://dx.doi.org/10.3390/app9214637.

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This paper presents a novel scissoring composite actuator which can successfully degenerate longitudinal vibration into scissoring vibration at actuator tips for potential medical applications. The proposed actuator consists of back mass, multilayer piezoceramic stack, front mass with netted pre-stress structure and beam. The actuator is driven by only a small axially poled multilayer piezoceramic stack. Moreover, a special symmetrical grooved structure is designed at the beam end to convert longitudinal driving vibration into opposite bending vibrations at the beam tip, resulting in scissoring-type composite vibration. The converted scissoring vibration concentrates on the beam tip without any deflection along other parts, which is highly desirable for narrow-spaced medical operations. The proposed design principle is demonstrated by structural analysis and verified by different types of finite element modeling (FEM) simulations, including Eigen frequency analysis, harmonic analysis, and transient analysis. The results reveal the design effectiveness of the actuator’s structure on scissoring-type mode excitation. Finally, a prototype of the proposed piezoelectric actuator is fabricated and tested, rendering superior performance and highly reliable mode conversion. The proposed actuator exhibits potential for advanced medical applications.
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3

He, Ye, Xiaoan Chen, Zhi Liu, and Yi Chen. "Active vibration control of motorized spindle based on mixed H∞/Kalman filter robust state feedback control." Journal of Vibration and Control 25, no. 6 (2019): 1279–93. http://dx.doi.org/10.1177/1077546318820935.

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In its working process, a high-speed motorized spindle bearing-rotor system is affected by a variety of vibration excitations, which severely affect the machining precision and reliability. In view of the problems in the active vibration control of current smart-material-based bearing-rotor systems and based on the structural layout of a piezoelectric device and a controlled bearing-rotor system, a bearing was directly connected to a piezoelectric actuator via a sleeve, which improved the working efficiency of the piezoelectric stack actuator. Furthermore, to improve the robustness of the system’s vibration control performance under different external excitations (e.g., cutting force and mass unbalance), uncertainties in internal parameters (changes in bearing stiffness and stiffness nonlinearity of piezoelectric materials), process and measure noises, a mixed state feedback algorithm based on [Formula: see text] norm optimization and a Kalman filter observer with state disturbance estimation was established. The dynamic and robust performance of the proposed method was compared with that of the linear quadratic Gaussian optimal control methods and [Formula: see text] output feedback control method through both simulation and experiment by changing the piezoelectric stacks without changing the control program.
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4

Mehrian, S. M. Nowruzpour, and S. Zamani Mehrian. "Modification of Space Truss Vibration Using Piezoelectric Actuator." Applied Mechanics and Materials 811 (November 2015): 246–52. http://dx.doi.org/10.4028/www.scientific.net/amm.811.246.

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The aim of this paper is finite element presentation for vibration response of the intelligent structure (consisting peizoeectric members) and modification of the response. The active element consists of a piezoelectric ceramic actuator stack, a force transducer and mechanical interfaces. An integral plus double-integral force controller is designed to suppress vibration of the truss. In this paper, in order to find the best piezoelectric operator’s location in spatial truss and optimizing the performance of the member by changing the property of the members, an algorithm is presented to achieve desired natural frequency. Therefore, finite element method of spatial truss is extracted. The results are admitted by ANSYS software. At the end, an example to show the application of the relations is given.
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5

Chen, Xiong Biao, D. Kong, and Q. S. Zhang. "On the Dynamics of Piezoelectric-Driven Stick-Slip Actuator." Key Engineering Materials 375-376 (March 2008): 648–52. http://dx.doi.org/10.4028/www.scientific.net/kem.375-376.648.

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Piezoelectric-driven stick-slip actuators have been drawing extensive attention for applications in the fields of scanning microscopy, micro robotics, and microsystems due to their well-defined step size and theoretically-unlimited displacement. In such an actuator, the dynamics of the end-effector displacement is of importance for its control and optimal design, yet challenging to be modeled due to the complexity involved. By taking into account the dynamics of piezoelectric element and the presliding friction acting on the end-effector, a model representative of the end-effector displacement is presented in this paper. The effectiveness of the developed model is illustrated by the experiments on the piezoelectric-driven stick-slip actuator prototyped in the authors’ lab.
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6

Zhou, Jinlong, Linghua Dong, and Weidong Yang. "A Double-Acting Piezoelectric Actuator for Helicopter Active Rotor." Actuators 10, no. 10 (2021): 247. http://dx.doi.org/10.3390/act10100247.

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An active rotor with trailing-edge flaps is an effective approach to alleviate vibrations and noise in helicopters. In this study, a compact piezoelectric actuator is proposed to drive trailing-edge flaps. The two groups of piezoelectric stacks accommodated in the actuator operate in opposition, and double-acting output can be realized through the differential motion of these stacks. A theoretical model and a finite element model are established to predict the output capability of this actuator, and structural optimization is performed using the finite element model. A prototype is built and tested on a benchtop to assess its performance. Test results demonstrate that the actuator stiffness reaches 801 N/mm, and its output stroke is up to ±0.27 mm when subjected to actuation voltage of 120 V. Agreement between measurements and simulations validates the accuracy of the established models. In addition, actuator outputs in failure modes are measured by canceling the supply voltage of one group of piezoelectric stacks. In this condition, the actuator can still generate acceptable outputs, and the initial position of the output end remains unchanged. Simulations and test results reveal that the proposed actuator achieves promising performance, and it is capable to be applied to a helicopter active rotor.
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7

Tamburrano, Paolo, Elia Distaso, Andrew R. Plummer, Francesco Sciatti, Pietro De Palma, and Riccardo Amirante. "Direct Drive Servovalves Actuated by Amplified Piezo-Stacks: Assessment through a Detailed Numerical Analysis." Actuators 10, no. 7 (2021): 156. http://dx.doi.org/10.3390/act10070156.

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This paper presents a feasibility study using commercially available amplified piezo-stacks for the direct actuation of four-way three-position (4/3) direct drive servovalves. The prospect of using amplified piezo-stacks in place of linear force motors is very attractive by virtue of their fast response speed and low weight. Piezo-stacks equipped with mechanical amplification systems can give levels of displacement suitable for this application. A very effective amplification system has recently been produced by some manufacturers and is based on a temperature-independent diamond structure. This paper details simulations of a 4/3 servovalve directly actuated by such a piezoelectric actuator with a diamond structure. To this end, well-established equations, implemented in Simulink by means of the libraries of Simscape Fluids, are used. The proposed architecture shows simplicity of construction; in addition, very good step response speed and frequency response are predicted by the simulations.
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8

Kushnir, Uri, and Oded Rabinovitch. "Advanced piezoelectric–ferroelectric stack actuator." Sensors and Actuators A: Physical 150, no. 1 (2009): 102–9. http://dx.doi.org/10.1016/j.sna.2008.11.036.

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9

Ardelean, Emil V., Daniel G. Cole, and Robert L. Clark. "High Performance ‘‘V-stack’’ Piezoelectric Actuator." Journal of Intelligent Material Systems and Structures 15, no. 11 (2004): 879–89. http://dx.doi.org/10.1177/1045389x04045150.

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10

Sakai, Takenobu, and Hiroshi Kawamoto. "Durability Properties of Piezoelectric Stack Actuator." Japanese Journal of Applied Physics 37, Part 1, No. 9B (1998): 5338–41. http://dx.doi.org/10.1143/jjap.37.5338.

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