Piezoelectric motor
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Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives Open
Piezoelectric inertia motors—also known as stick-slip motors or (smooth) impact drives—use the inertia of a body to drive it in small steps by means of an uninterrupted friction contact. In addition to the typical advantages of piezoelectr…
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Piezoelectric Motors, an Overview Open
Piezoelectric motors are used in many industrial and commercial applications. Various piezoelectric motors are available in the market. All of the piezoelectric motors use the inverse piezoelectric effect, where microscopically small oscil…
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Arthropod‐Metamerism‐Inspired Resonant Piezoelectric Millirobot Open
Miniaturization, fast motion, high resolution, high agility, and good adaptability are relatively contradictory characteristics in mobile robot design. It is indeed a challenge to satisfy these performances at the same time. Inspired by th…
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Review of high temperature piezoelectric materials, devices, and applications Open
Piezoelectric functional materials have been extensively studied and employed in numerous devices. With the rapid development of modern industries, such as power plants, aerospace, automotive, renewable energy and material processing indus…
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A review of recent advances in the single- and multi-degree-of-freedom ultrasonic piezoelectric motors Open
In this paper a comprehensive review of recent studies on the ultrasonic piezoelectric motors is presented. The authors focus on research articles published in the last five years mostly. The primary subject of this investigation is the de…
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Review on Multi-Degree-of-Freedom Piezoelectric Motion Stage Open
Multi-degree-of-freedom (multi-DOF) piezoelectric motion stage is an important part of modern manufacturing industry. In order to perform high precision outputs in a large travel range, various multi-DOF piezoelectric motion stages have be…
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An Inchworm Type Piezoelectric Actuator Working in Resonant State Open
An inchworm type piezoelectric actuator with four driving feet is proposed and tested. The proposed actuator has merits of easy fabrication and miniaturization structure by using a boned-type structure. Horizontal vibration mode and vertic…
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A Method to Realize Low Velocity Movability and Eliminate Friction Induced Noise in Piezoelectric Ultrasonic Motors Open
In a piezoelectric ultrasonic motor (USM) or resonance drive type piezoelectric motor (RPM), movement is generated between a vibrator (stator) and a slider (rotor). Since the microscopic vibrations on a stator are transferred to a slider t…
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Sandwich-Type Multi-Degree-of-Freedom Ultrasonic Motor With Hybrid Excitation Open
A sandwich-type multi-degree-of-freedom (MDOF) ultrasonic motor with hybrid excitation is proposed in this paper. The motor adopts pair combination of three resonance modes to drive the sphere rotations around three coordinate axes. When t…
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Modeling and Two-Input Sliding Mode Control of Rotary Traveling Wave Ultrasonic Motors Open
Traveling wave ultrasonic motors are actuators relying on piezoelectric ceramics that combine many advantageous features, such as high stalling torque, fast response, compactness, and magnetic resonance compatibility. However, they suffer …
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Optimization and Analysis of a U-Shaped Linear Piezoelectric Ultrasonic Motor Using Longitudinal Transducers Open
A novel U-shaped piezoelectric ultrasonic motor that mainly focused on miniaturization and high power density was proposed, fabricated, and tested in this work. The longitudinal vibrations of the transducers were excited to form the ellipt…
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Analysis of a Cantilevered Piezoelectric Energy Harvester in Different Orientations for Rotational Motion Open
This paper investigates a piezoelectric energy harvester that consists of a piezoelectric cantilever and a tip mass for horizontal rotational motion. Rotational motion results in centrifugal force, which causes the axial load on the beam a…
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Analysis of a Cascaded Piezoelectric Ultrasonic Transducer with Three Sets of Piezoelectric Ceramic Stacks Open
To increase the ultrasonic intensity and power of a piezoelectric transducer, a cascaded piezoelectric ultrasonic transducer with the three sets of piezoelectric ceramic stacks is analyzed. The cascaded piezoelectric ultrasonic transducer …
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A Resonant Piezoelectric Diaphragm Pump Transferring Gas with Compact Structure Open
In order to improve the output capacity of a piezoelectric pump when transferring gas, this paper presents a compact resonant piezoelectric diaphragm pump (hereinafter referred to as the piezoelectric diaphragm pump), which is driven by a …
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Impact Force Analysis in Inertia-Type Piezoelectric Motors Open
In an inertia-type motor, a piezoelectric multilayer actuator is espoused to a transient vibration velocity as high as 1.0 m/s during slip time. This vibration velocity makes the inertia-type motors dynamic but not quasi-static. We propose…
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3DOF Ultrasonic Motor with Two Piezoelectric Rings Open
A novel design of a multiple degrees of freedom (multi-DOF) piezoelectric ultrasonic motor (USM) is presented in the paper. The main idea of the motor design is to combine the magnetic sphere type rotor and two oppositely placed ring-shape…
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Flexible Electronics: Advancements and Applications of Flexible Piezoelectric Composites in Modern Sensing Technologies Open
The piezoelectric effect refers to a physical phenomenon where piezoelectric materials generate an electric field when subjected to mechanical stress or undergo mechanical deformation when subjected to an external electric field. This prin…
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Analysis of Flexural Vibrations of a Piezoelectric Semiconductor Nanoplate Driven by a Time-Harmonic Force Open
The performance of devices fabricated from piezoelectric semiconductors, such as sensors and actuators in microelectromechanical systems, is superior; furthermore, plate structures are the core components of these smart devices. It is thus…
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A Novel Rotary Piezoelectric Motor Using First Bending Hybrid Transducers Open
We report a novel rotary piezoelectric motor using bending transducers in this work. Three transducers are used to drive a disk-shaped rotor together by the elliptical movements of their driving tips; these motions are produced by the hybr…
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Piezoelectric MEMS Linear Motor for Nanopositioning Applications Open
This paper reports the design, fabrication, and performance of piezoelectric bidirectional conveyors based on microelectromechanical systems (MEMS) and featuring 3D-printed legs in bridge resonators. The structures consisted of aluminum-ni…
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A Comprehensive Review of Piezoelectric Ultrasonic Motors: Classifications, Characterization, Fabrication, Applications, and Future Challenges Open
Piezoelectric ultrasonic motors (USMs) are actuators that use ultrasonic frequency piezoelectric vibration-generated waves to transform electrical energy into rotary or translating motion. USMs receive more attention because they offer dis…
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Design and Experiments of a Piezoelectric Motor Using Three Rotating Mode Actuators Open
This paper represents a numerical and experimental investigation of the multicell piezoelectric motor. The proposed design consists of three individual cells that are integrated into the stator, double rotor, and a preload system combined …
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A novel linear piezoelectric actuator with two working principles of standing and traveling wave vibration mode Open
This paper presents a new linear piezoelectric actuator, which consists of two pieces of piezoelectric ceramics, a copper substrate and a zirconia driving tip. By changing the input signal, the actuator can be chosen to work in a standing …
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A Novel Dual-Rotor Ultrasonic Motor for Underwater Propulsion Open
Micro underwater vehicles (MUVs) have been highlighted recently for underwater explorations because of their high maneuverability, low price, great flexibility, etc. The thrusters of most conventional MUVs are driven by electromagnetic mot…
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A High-Thrust Screw-Type Piezoelectric Ultrasonic Motor with Three-Wavelength Exciting Mode Open
A high-thrust screw-type piezoelectric ultrasonic motor with a three-wavelength exciting mode is proposed in this paper. The motor mainly includes a stator and a screw output shaft, and the stator is composed of twelve rectangular piezoele…
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A novel underwater piezoelectric thruster with one single resonance mode Open
In this paper, a novel underwater piezoelectric thruster with one single resonance mode is proposed. The piezoelectric thruster consists of one piezoelectric transducer and two propellers. In order to relieve the bulky problem of underwate…
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Design Evolution of the Ultrasonic Piezoelectric Motor Using Three Rotating Mode Actuators Open
The development process and experimental investigation of the multicell piezoelectric motor is presented in this paper. The proposed design consists of three individual cells integrated into the stator, double rotor, and a preload system. …
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Bionic Stepping Motors Driven by Piezoelectric Materials Open
By imitating the behavioral characteristics of some typical animals, researchers develop bionic stepping motors to extend the working range of piezoelectric materials and utilize their high accuracy advantage as well. A comprehensive revie…
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High‐Speed Rotary Motor for Multidomain Operations Driven by Resonant Dielectric Elastomer Actuators Open
The motion of rotation is ubiquitous in daily life and industry. Compared with electromagnet motors, smart‐material‐based rotary motors may exhibit more flexibility, robustness, and adaptability. Herein, a lightweight, compact dielectric e…
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Lift Generation by a Miniature Piezoelectric Ultrasonic Motor-Driven Rotary-Wing for Pico Air Vehicles Open
Actuators are key components for further miniaturization of insect-scale microrobots. It is challenging to create a new miniature actuator suited for rotary-wing pico aerial vehicles (PAVs), which have a wing span of a few centimeters and …