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Article
Automation & Control Systems
Yingzhi Wang et al.
Summary: Imitating the locomotion of koalas, a lightweight self-locomotion piezoelectric actuator (SLPA) is developed. The SLPA, based on the hybrid of the longitudinal and bending vibration modes, achieves linear locomotion. The experimental results validate the proposed SLPA's climbing capability and verify the effectiveness of the operating principle, with a maximum speed of 61.68 mm/s and slope angle of 20 degrees.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Mechanical
Qiaosheng Pan et al.
Summary: This study proposes a dual-stator piezoelectric motor that can work in resonant and quasi-static states to achieve high speed and high resolution cross-scale output. The motor utilizes two piezoelectric stators with a frequency of 1:2 and a vibration amplitude ratio of 2:1 to drive a sliding table with multipoint friction coupling, generating asymmetric sawtooth wave vibration. Combined with the inertia force of the sliding table, the motor achieves stepping motion. A prototype is designed and modal analysis is conducted to determine the resonant frequencies. Numerical analysis is performed to obtain the trajectory and output characteristics of the sliding table. Experimental results show that the motor has a minimum speed of 0.013 mm/s, resolution of 0.5 mu m, maximum speed of 11.14 mm/s, and maximum load of 40 g.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Instruments & Instrumentation
Dongmei Xu et al.
Summary: This paper proposes a surface-bonded type of U-shaped ultrasonic motor which can simultaneously excite three isomorphic fourth-order bending vibration modes, eliminating the resonance deviation between modes and reducing the effect of frequency decoupling. The bending vibration mode on the horizontal beam of the U-shaped structure provides pressing force at driving feet, while the bending vibration modes on the two vertical beams generate driving forces. Under the excitation of orthogonal signals, alternately driven elliptical trajectories are generated at driving feet. The feasibility of the working principle is proved by experimental results.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Mechanical
Burhanettin Koc et al.
Summary: In an inertia-type motor, a piezoelectric multilayer actuator with a transient vibration velocity of 1.0 m/s is used during slip time, making the motor dynamic. A kinetic model is proposed to describe the conditions for slippage between the slider and stator, where the transient current absorbed by the actuator defines the slider's behavior. A new force factor expression (A(33)) is introduced to relate the transient current and vibration velocity. The structure and characteristics of a two-phase inertia-drive-type piezoelectric motor are also presented.
Article
Engineering, Mechanical
Xiandi Jin et al.
Summary: Friction behavior and serious wear are critical for standing-wave linear ultrasonic motors. Laser surface microtextures with multi-connected vesicle-like microarray were used to enhance friction regulation and driving performance. Experimental results showed that the composite microtextures improved friction drive and output performance, with 66% higher output power compared to non-textured ones.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Review
Materials Science, Multidisciplinary
Xu DongMei et al.
Summary: This paper summarizes various types of single-phase ultrasonic motors, explaining their working principles, output performances, and applications, while also prospecting their development prospects. This review is helpful for a comprehensive understanding of single-phase drive ultrasonic motors and provides the groundwork for the development of a novel single-phase driven ultrasonic motor with improved mechanical output.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2023)
Article
Acoustics
Huajie Qu et al.
Summary: This paper proposed a new structure of the stator for a linear ultrasonic motor (LUSM), which is compact and suitable for miniaturization. By optimizing the structure and vibration modes, the performance of the motor is improved. The feasibility of synthesizing elliptical motion by the driving feet was theoretically and experimentally verified. The research provides guidance for the design of the stator and shows that the proposed LUSM has potential applications in occasions with quick return characteristics.
SHOCK AND VIBRATION
(2022)
Article
Engineering, Mechanical
Botao Jia et al.
Summary: A novel screwed-type piezoelectric focusing mechanism is proposed to overcome the disadvantages of traditional focusing mechanisms for space cameras. This mechanism can achieve high-precision linear positioning and self-locking, showing promising potential in space camera applications.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Tomoaki Mashimo et al.
Summary: This article introduces an ultrasonic motor that uses thickness shear mode, which allows for higher energy efficiency, low voltage operation, and high torque generation. The performance of this micro motor is significantly improved compared to conventional micro motors using typical expansion mode piezoelectric elements. It sets a new benchmark in the field of 1-2 millimeter-scale actuators.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Multidisciplinary
Yuhua Zhou et al.
Summary: This study constructed a homemade system to measure the electromechanical multi-parameters and kinetics performances of linear piezoelectric ultrasonic motors. It demonstrated the principles and structures of the test system based on virtual instrument technology. The study is significant for the measurement/evaluation of the dynamic and transient performances of linear piezoelectric motors and actuators.
Article
Engineering, Electrical & Electronic
Shunsuke Izuhara et al.
Summary: This article introduces a miniature linear piezoelectric ultrasonic motor with a thin and hollow design, which can be used in autofocusing features of next-generation camera modules. The relationship between dimensions and preload is modeled to quantify the preload value and clarify the design methodology of the motor. After optimization and experimental evaluation, the motor provides thrust force suitable for quick response, meeting the requirement for autofocusing.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Instruments & Instrumentation
Teng Cao et al.
Summary: A novel laminated piezoelectric (PZT) motor was designed to achieve high force density, strength, and compact structure. The motor operates in a hybrid mode of first longitudinal vibration (L1) and second bending vibration (B2), with a higher thrust density and output power density compared to other motors in the same modes.
SMART MATERIALS AND STRUCTURES
(2021)
Review
Engineering, Mechanical
Julius Caesar Puoza et al.
Summary: This review summarizes the key technical aspects, research efforts, conclusions, and challenges in ultrasonic motor structural design and tribological performance. It points out that future design of efficient ultrasonic motors should focus on simplifying the body structure, developing advanced friction contact models and life prediction models, developing new and environmentally friendly friction materials, and developing customized tribological testing devices.
Article
Automation & Control Systems
Jiang Wu et al.
Summary: This article presents a new design for a T/B motor with high torque density and power density achieved through a rod-shaped transducer and dual elliptical motions. Experimental results demonstrate that the motor exhibits high performance indicators, offering a new approach for designing powerful rotary USMs.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Review
Materials Science, Multidisciplinary
Xiangyu Gao et al.
ADVANCED MATERIALS TECHNOLOGIES
(2020)
Article
Instruments & Instrumentation
Guangqing Wang et al.
SMART MATERIALS AND STRUCTURES
(2020)
Review
Engineering, Electrical & Electronic
Xinqi Tian et al.
SENSORS AND ACTUATORS A-PHYSICAL
(2020)
Article
Computer Science, Information Systems
Chong Li et al.
Article
Instruments & Instrumentation
Di Chen et al.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2019)
Article
Robotics
K. Miyoshi et al.
Article
Instruments & Instrumentation
Xiaoniu Li et al.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2017)
Article
Engineering, Multidisciplinary
Chong Li et al.
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A
(2016)
Article
Acoustics
Mingsen Guo et al.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2013)
Article
Acoustics
Hou Xiaoyan et al.
Article
Engineering, Electrical & Electronic
T Kanda et al.
SENSORS AND ACTUATORS A-PHYSICAL
(2006)
Article
Engineering, Electrical & Electronic
T Morita et al.
SENSORS AND ACTUATORS A-PHYSICAL
(2000)
