Working Mechanism of Nonresonance Friction in Driving Linear Piezoelectric Motors with Rigid Shaking Beam

Chen, Xifu; Lu, Qian; Huang, Weiqing; Yin, Wang

doi:10.1155/2018/7438167

Cited by 3 publications

(1 citation statement)

References 19 publications

(22 reference statements)

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“…For better understanding the driving principle of proposed rotary ultrasonic motor, firstly, the 'Shaking Beam' principle is taken as the breakthrough point, and then the driving principle is described in depth. Vasiljev [38] proposed the concept of 'Shaking Beam' and it has been applied to the design of various piezoelectric actuators [39][40][41][42]. The core principle of 'Shaking Beam' can be demonstrated by figure 3.…”

Section: Driving Principlementioning

confidence: 99%

A novel rotary ultrasonic motor based on multiple Langevin transducers: design, simulation, and experimental investigation

Ma,

Yang,

Qiu

et al. 2024

Smart Mater. Struct.

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Travelling wave rotary ultrasonic motors (TRUSMs) have been applied in optical systems, robotics, biomedical and other fields. However, the disadvantages such as short working life, driving performance degradation, and low energy utilization significantly limit the long-term and stable operation of TRUSMs in advanced fields like aerospace mechanisms. To address the above issues, a novel rotary ultrasonic motor based on multiple Langevin transducers is proposed in this paper. First, the structural design, driving principle and general design criteria are described in detail. Then, the structural parameters are optimized by finite element simulation analysis. Second, a prototype is assembled controllably. Subsequently, the impedance test and vibration measurement are carried out. The results show that the traveling wave is successfully generated on the tooth-ring, and all the Langevin transducers are excited to the first-order longitudinal vibration modes, which strongly verify the correctness of design principle. Finally, the driving performance experiment is carried out. The experimental results show that the no-load speed is 62 r/min under the pre-pressure of 10 N. The stalling torque is 0.94 N·m at the driving voltage of 500 Vp-p. The response characteristics show that the start/stop time are 4.6/5.5 ms, and the angular displacement resolution of clockwise/counterclockwise driving are 6.7/10.2 μrad. The motor proposed in this paper not only exhibits relatively high output performance with excellent vibration characteristics, but also maintains compactness of the structure. The sandwiched structure design effectively avoids the problem that the bonded-type piezoceramic rings in conventional TRUSMs are prone to damage or fall-off when vibrating for a long time. Furthermore, the general design criteria provide a new approach to develop high performance rotary ultrasonic motors. The proposed novel ultrasonic motor is expected to meet the demand for long-term and stable operation in aerospace mechanisms.

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Section: Driving Principlementioning

confidence: 99%

A novel rotary ultrasonic motor based on multiple Langevin transducers: design, simulation, and experimental investigation

Ma,

Yang,

Qiu

et al. 2024

Smart Mater. Struct.

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Meshing Drive Mechanism of Double Traveling Waves for Rotary Piezoelectric Motors

Huang

Liu

et al. 2021

Mathematics

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Rotary piezoelectric motors based on converse piezoelectric effect are very competitive in the fields of precision driving and positioning. Miniaturization and larger output capability are the crucial design objectives, and the efforts on structural modification, new materials application and optimization of control systems are persistent but the effectiveness is limited. In this paper, the resonance rotor excited by stator is investigated and the meshing drive mechanism of double traveling waves is proposed. Based on the theoretical analysis of bending vibration, the finite element method (FEM) is used to compare the modal shape and modal response in the peripheric, axial, and radial directions for the stator and three rotors. By analyzing the phase offset and vibrational orientation of contact particles at the interface, the principle of meshing traveling waves is discussed graphically and the concise formula obtaining the output performance is summarized, which is analogous with the principles of gear connection. Verified by the prototype experimental results, the speed of the proposed motor is the sum of the velocity of the stator’s contact particle and the resonance rotor’s contact particle, while the torque is less than twice the motor using the reference rotor.

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The Roles of Piezoelectric Ultrasonic Motors in Industry 4.0 Era: Opportunities and Challenges

Wankhede¹,

Xu²

2021

Piezoelectric Actuators - Principles, Design, Experiments and Applications

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Piezoelectric Ultrasonic motors (USM) are based on the principle of converse piezoelectric effect i.e., vibrations occur when an electrical field is applied to piezoelectric materials. USMs have been studied several decades for their advantages over traditional electromagnetic motors. Despite having many advantages, they have several challenges too. Recently many researchers have started focusing on Industry 4.0 or Fourth Industrial revolution phase of the industry which mostly emphasis on digitization & interconnection of the entities throughout the life cycle of the product in an industrial network to get the best possible output. Industry 4.0 utilizes various advanced tools for carrying out the nexus between the entities & bringing up them on digital platform. The studies of the role of USMs in Industry 4.0 scenario has never been done till now & this article fills that gap by analyzing the piezoelectric ultrasonic motors in depth & breadth in the background of Industry 4.0. This article delivers the novel working principle, illustrates examples for effective utilization of USMs, so that it can buttress the growth of Industry 4.0 Era & on the other hand it also analyses the key Industry 4.0 enabling technologies to improve the performance of the USMs.

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Working Mechanism of Nonresonance Friction in Driving Linear Piezoelectric Motors with Rigid Shaking Beam

Cited by 3 publications

References 19 publications

A novel rotary ultrasonic motor based on multiple Langevin transducers: design, simulation, and experimental investigation

A novel rotary ultrasonic motor based on multiple Langevin transducers: design, simulation, and experimental investigation

Meshing Drive Mechanism of Double Traveling Waves for Rotary Piezoelectric Motors

The Roles of Piezoelectric Ultrasonic Motors in Industry 4.0 Era: Opportunities and Challenges

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