Improving efficiency of traveling wave rotary ultrasonic motor by optimizing stator

Zhang, Jiaojiao; Ren, Weihao; Zhao, Chunsheng; Wang, Feng

doi:10.1063/1.5088804

Cited by 16 publications

(10 citation statements)

References 9 publications

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“…The magnitude of the pre-pressure has a great influence on the energy transmission of the motor, and has a far-reaching impact on its mechanical properties. Establishing a reasonable and effective contact friction model is an important means to study the performance of the motor by the pre-pressure, and it is of great significance to lay the foundation for the structural optimization of the ultrasonic motor [15,16].…”

Section: The Effect Of Pre-pressure On the Contact Range And Isokinetic Point Of The Stator And Rotormentioning

confidence: 99%

Analysis of Preload of Three-Stator Ultrasonic Motor

Zhao

Che

et al. 2021

Micromachines

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The pre-pressure device of the ultrasonic motor plays a vital role in the design of the entire motor structure, the contact state of the stator and rotor of the motor, dynamic properties of the stator, friction and wear characteristics of the rotor; even the mechanical behaviors of the entire electric machinery have a profound impact. Appropriate pre-pressure is conducive to the smooth operation of the ultrasonic motor, so that the output performance remains excellent, reducing wear and effectively extend the service life of the motor. Therefore, the research on pre-stress is of great significance, as it can better optimize the structure of the three-stator ultrasonic motor and lay the foundation for the stable operation of the motor. First, this paper introduces the construction of the motor as a whole and the pre-pressure device briefly described the working mechanism of the motor, and then introduces the influence of the pre-pressure on the stator and rotor contact models, the position of the constant velocity point, and the modal frequency. Finally, the motor output under different pre-pressures is discussed. The performance experiment has determined the optimal pre-pressure interval, which provides help for its subsequent optimization.

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Section: The Effect Of Pre-pressure On the Contact Range And Isokinetic Point Of The Stator And Rotormentioning

confidence: 99%

Analysis of Preload of Three-Stator Ultrasonic Motor

Zhao

Che

et al. 2021

Micromachines

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“…The studies of contact surface, contact mechanism, preloading method of USMs has been one of the prominent topics in the USM research field. Zhang et al, proposed a solution to reduce the radial sliding by optimizing the stator comb-teeth of a TRUM [50]. They further developed a 3D finite element model for longitudinal torsional USM by ADINA in order to study the mechanical simulation and contact analyses [51].…”

Section: Preload Effect Studymentioning

confidence: 99%

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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“…Yoon et al [11] used surface treatment technology to improve the torque of ultrasonic motor, and further analyzed the effect of coating on interface wear rate and speed. In addition, Zhang Jiao [12] effectively reduces the energy loss caused by the radial sliding of the contact surface by chamfering the stator teeth of the motor.…”

Section: Introductionmentioning

confidence: 99%

Geometric parameters optimization on storage performance degradation of ultrasonic motor based on simulation analysis

Tan,

Wang,

Zhang

et al. 2023

J. Phys.: Conf. Ser.

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The performance of ultrasonic motor will drift due to material degradation and other reasons during long-term storage, which will directly affect the working performance after storage. Aiming at the optimization design of geometric parameters for performance storage degradation, this paper takes the piezoelectric constant d31 of ceramic chip and the elastic modulus of colloid as the characterization parameters of product storage degradation, and takes the stator tooth spacing and the thickness of rubber layer as the analysis objects of product geometric parameters optimization, and proposes a simulation analysis method based on finite element model. Through the analysis of the simulation results, it is found that the increase of the stator tooth spacing will lead to the increase of the change rate of the 5-wave modal frequency with the degradation of the material properties, and the decrease of the overall change rate of the amplitude. However, properly reducing the thickness of the adhesive layer can effectively reduce the influence of the degradation of the piezoelectric properties of the ceramic chip and the hardening of the gel on the frequency response characteristics of the stator of the ultrasonic motor under long-term storage.

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Improving efficiency of traveling wave rotary ultrasonic motor by optimizing stator

Cited by 16 publications

References 9 publications

Analysis of Preload of Three-Stator Ultrasonic Motor

Analysis of Preload of Three-Stator Ultrasonic Motor

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

Geometric parameters optimization on storage performance degradation of ultrasonic motor based on simulation analysis

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