Results 281 to 290 of about 550,818 (339)

Investigation of Deformation in Bimorph Piezoelectric Actuator: Analytical, Numerical and Experimental Approach

Integrated Ferroelectrics, 2019
Piezoelectric actuators are widely used in many fields such as medical instruments, optics, and aerospace due to their small size and high reliability. Piezoelectric cantilever actuators are used in different configurations such as unimorph and bimorph ...
Ahsan Ali, R. Pasha, H. Elahi, Muhammad Abdullah Sheeraz, Saima Bibi, Zain ul Hassan, M. Eugeni, P. Gaudenzi   +7 more
semanticscholar   +1 more source

Piezoelectric T-Beam Actuators

Journal of Mechanical Design, 2011
This paper develops models, fabricates, experimentally tests, and optimizes a novel piezoelectric T-beam actuator. With a T-shaped cross-section, and bottom and top flanges and web electrodes, a cantilevered beam can bend in both in-plane and out-of-plane directions upon actuation.
Hareesh K. R. Kommepalli, Kiron Mateti, Christopher D. Rahn, Srinivas A. Tadigadapa   +3 more
openaire   +1 more source

Design and Experiments of a Single-Foot Linear Piezoelectric Actuator Operated in a Stepping Mode

IEEE transactions on industrial electronics (1982. Print), 2018
A single-foot linear piezoelectric actuator is proposed in this paper, and a new exciting method for the stepping motion is discussed. The proposed actuator works in the hybrid modes of the second horizontal bending vibration and the second vertical ...
Jun-kao Liu, Yingxiang Liu, Liangliang Zhao, Dongmei Xu, Weishan Chen, Jie Deng   +5 more
semanticscholar   +1 more source

Piezoelectrically actuated droplet ejector

Review of Scientific Instruments, 1997
This article presents a novel piezoelectric fluid ejector that is based on a variation of the design of a flextensional transducer that excites axisymmetric resonant modes in a clamped circular membrane. The transducer is made by bonding a thin piezoelectric ring to a thin, fully supported, circular membrane.
Gökhan Perçin, Laurent Levin, Butrus T. Khuri-Yakub   +2 more
openaire   +1 more source

Simple and high-performance stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism

Journal of Intelligent Materials Systems and Structures, 2019
This article presented a new type of stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism. The key of the driving mechanism was a four-bar mechanism with different minimum thicknesses of right-circle flexure hinges ...
Qi Gao, Meng He, Xiaohui Lu, Chi Zhang, Tinghai Cheng   +4 more
semanticscholar   +1 more source

V-stack piezoelectric actuator

SPIE Proceedings, 2001
Aeroelastic control of wings by means of a distributed, trailing-edge control surface is of interest with regards to maneuvers, gust alleviation, and flutter suppression. The use of high energy density, piezoelectric materials as motors provides an appealing solution to this problem. A comparative analysis of the state of the art actuators is currently
Emil V. Ardelean, Robert L. Clark
openaire   +1 more source

Piezoelectrically Actuated Tunable Capacitor

Journal of Microelectromechanical Systems, 2006
This paper describes the design, fabrication, and characterization of the first MEMS piezoelectric tunable capacitors employing zinc oxide (ZnO) actuation. Relatively simple design rules for the device-structure optimization for largest deflection are shown from simulation results based on theoretical equations.
C.-Y. Lee, E.S. Kim
openaire   +1 more source

Plane ultrasonic piezoelectric actuators

Conference Record of the Power Conversion Conference - Yokohama 1993, 2002
Two prototypes of plane ultrasonic piezoelectric actuators were experimentally constructed, and the fundamental characteristics were measured. The vibration mode of actuators was also analyzed by ANSYS, and compared with the experimental results.
N. Hoshi, A. Kawamura
openaire   +1 more source

Note: Lever-type bidirectional stick-slip piezoelectric actuator with flexible hinge.

Review of Scientific Instruments, 2018
This paper presents a lever-type stick-slip piezoelectric actuator based on the lever amplification principle. The proposed actuator can achieve large strokes, high velocity, and bidirectional actuation with a single piezoelectric stack.
Yikang Li, Hengyu Li, Tinghai Cheng, Xiaohui Lu, Hongwei Zhao, Pengfei Chen   +5 more
semanticscholar   +1 more source

Novel inertial piezoelectric actuator with high precision and stability based on a two fixed-end beam structure

Smart materials and structures (Print), 2018
A novel inertial piezoelectric actuator is proposed in this study to address the large vibration problem in piezoelectric actuators with a typical cantilever structure.
Qitao Lu, Jianming Wen, Yili Hu, Kangshang Chen, Huilu Bao, Jijie Ma   +5 more
semanticscholar   +1 more source