Results 51 to 60 of about 7,096 (163)
Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet
Shock and Vibration, 2012 The present work proposes a non-contact vibration attenuator made up of a permanent magnet mounted on a piezoelectric stack. Two such actuators are made to work simultaneously in a 'twin-actuator' configuration.
A. Nandi +3 more
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Modeling piezoelectric actuators
IEEE/ASME Transactions on Mechatronics, 2000 The piezoelectric actuator (PEA) is a well-known device for managing extremely small displacements in the range from 10 pm to 100 /spl mu/m. When developing a control system for a piezo-actuated positioning mechanism, the actuator dynamics have to be taken into account.
Adriaens, H.J.M.T.S. (author) +2 more
openaire +3 more sources
Motion Characteristics of Self-Sensing Piezoelectric Actuator for Yarn Micro-Gripper
Applied SciencesIn order to solve the problem of low response frequency and poor consistency of conventional yarn grippers in weft accumulators, in this study, a piezoelectric yarn gripper is used instead of conventional yarn grippers and the motion characteristics of ...
Laihu Peng, Yuan Sun, Yubao Qi, Xin Ru
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IEEE Access, 2019 A walking-type piezoelectric actuator based on the parasitic motion of flexure mechanisms is proposed in this paper. With the help of the parasitic motion of the asymmetrical flexure mechanism, the conventional walking-type piezoelectric actuator with ...
Jianming Wen +5 more
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Nonlinear Stochastic Optimal Control Using Piezoelectric Stack Inertial Actuator
Shock and Vibration, 2020 An optimal control strategy for the random vibration reduction of nonlinear structures using piezoelectric stack inertial actuator is proposed. First, the dynamic model of the nonlinear structure considering the dynamics of a piezoelectric stack inertial
Q. F. Lü, X. F. Wang, K. Lu, R. H. Huan
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AIP Advances, 2016 (94-x)(Na1/2Bi1/2)TiO3-6BaTiO3-x(K1/2Na1/2)NbO3 (NBT-6BT-xKNN) piezoelectric ceramics have notable potential for replacing lead containing piezoelectric ceramics in actuator applications due to their exceptionally large strain.
Ji-Hoon Park, Suk-Joong L. Kang
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Xibei Gongye Daxue XuebaoHigh-voltage piezoelectric actuators are widely used in the field of active vibration control of aerospace structures due to their advantages of strong load capacity, large nominal thrust, and fast response.
LI Weiguang +4 more
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Multi-DOF Ultrasonic Actuators for Laser Beam Positioning
Shock and Vibration, 2019 A novel design concept of multi-degree-of-freedom (multi-DOF) piezoelectric actuator is introduced in the paper. The main idea is to connect two identical piezoelectric transducers by hyperelastic material in order to increase the total number of degrees-
Ramutis Bansevicius +4 more
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Bond Graph Modeling and Simulation of Hybrid Piezo-Flexural-Hydraulic Actuator
Engineering ProceedingsIn this study, a hybrid piezo-flexural-hydraulic actuator is modeled and simulated using bond graph methodology. The hybrid actuator comprises piezoelectric stack actuator, mechanical flexural amplifier, and hydraulic piston actuator.
Rudraksha Kelkar +3 more
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Highly efficient traction drive system with a normal force controller using a piezoelectric actuator
Advances in Mechanical Engineering, 2017 Traction drive is a useful power transmission method for reducing noise of high-rotational-speed motors of electric vehicles. To realize a highly efficient traction drive system, normal force between rollers must be optimized.
Rui Fukui +3 more
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