Mechanical optimization of a novel hollow traveling wave rotary ultrasonic motor

Ren, Weihao; Yang, Menglong; Chen, Liang; Yang, Lin

doi:10.1177/1045389x20910263

Cited by 20 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…And the damping ratio adopted in the simulation model is 0.008, which is obtained by the empirical value. The boundary conditions and loadings of the 3D FE model given in Figure 5 are established according to actual conditions (Ren et al, 2019(Ren et al, , 2020.…”

Section: Finite Element Simulation Modelmentioning

confidence: 99%

A novel traveling wave rotary ultrasonic motor with piezoelectric backup function

Lin

Yang³

et al. 2023

Journal of Intelligent Material Systems and Structures

Self Cite

View full text Add to dashboard Cite

To fulfill high-reliability requirements for aerospace applications, a novel traveling wave rotary ultrasonic motor with a piezoelectric backup function (Backup motor) is proposed in this paper. The backup function is enabled by the addition of a set of piezoelectric ceramics (PZT). Based on the ultrasonic motor of the CSX-60, a cantilever-tooth backup motor (CTBM) is designed and fabricated. This backup motor can operate in three working modes according to the excitation settings of PZTs, namely normal mode, backup mode, and enhanced mode. The relationships between three working modes’ performances are analyzed by finite element (FE) analysis and prototype tests. The results show that backup mode, as the substitution, can nearly reach normal mode’s performance, while enhanced mode is obviously higher than others. Furthermore, a modified backup motor with straight-tooth (STBM) and different sizes of PZT is designed and tested as a supplement to verify the feasibility of the proposal. In addition, the effect of stress reduction on PZT damage is verified by extreme working experiments. The comparison between the two types of motors indicates that STBM can provide better frictional drive performance. This proposal can provide a new reference for the subsequent reliability study of ultrasonic motors.

show abstract

Section: Finite Element Simulation Modelmentioning

confidence: 99%

A novel traveling wave rotary ultrasonic motor with piezoelectric backup function

Lin

Yang³

et al. 2023

Journal of Intelligent Material Systems and Structures

Self Cite

View full text Add to dashboard Cite

show abstract

“…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]. A novel hollow type USM, which the preload was applied from the bottom of the stator through a wave spring, was proposed, [52] It could not only enhance the anti-overload ability but also extended the working life of the motor.…”

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

View full text Add to dashboard Cite

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.

show abstract

“…Compared to electromagnetic motors, USMs offer simple structures, self-locking at power-off stage, and no electromagnetic interference [1,3]. In recent years, rotary USMs have attracted much attention since their compact structures make them potentially applicable to some special application areas [4][5][6], e.g. optical precision platforms [7,8], surgical devices [9][10][11], or micro-/meso-sized telescopes [10,12,13].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of torque density and power density of polymer-based ultrasonic motors via flexible usage of anisotropy in elastic property

Liu

Gao

et al. 2023

Smart Mater. Struct.

View full text Add to dashboard Cite

The carbon-fiber-reinforced poly phenylene sulfide (PPS/CF), which exhibits low density, low energy dissipation, and relatively high elastic modulus among polymers, is a promising material as the vibrating body of lightweight ultrasonic motors (USMs). Interestingly, the flexible usage of the anisotropy in PPS/CF’s elastic property (induced by carbon fibers’ reinforcement) offers a new idea to enhance the torque densities and power densities of the polymer-based USMs. As the key issue of flexibly using the anisotropy, this study aims to accomplish the optimal arrangement of the carbon-fibers’ filling direction according to the structure, the vibration mode, and the piezoelectric material’s polarization direction of the PPS/CF-based motor by performing model construction, structural optimization, and experimental verification. Initially, the dynamic model capable of setting PPS/CF’s anisotropically elastic moduli with the changeable filling direction is established to analyze the vibration characteristics. Subsequently, to increase the vibration velocity, the stiffness, and the electromechanical coupling factors, the optimization is carried out for the PPS/CF-based ring-shaped vibrators, where the optimal angle between the filling direction and the vibrator’s bottom surface is estimated as 60°. Finally, a prototype of the PPS/CF-based vibrator 30 mm in diameter and 8.5 mm in height is fabricated to form a rotary motor, whose movement and load characteristics are investigated through experiments. At 250 V voltage and 24.42 kHz frequency, the motor yields the no-load rotation speed, the maximal torque, and the maximal output power of 99.3 r/min, 29.8 mNm, and 72 mW, respectively. Moreover, its torque density and power density reach respectively 7.1 Nm/kg and 17.1 W/kg, relatively high among the rotary motors with polymer vibrating bodies. This study validates the effectiveness of our idea and also provides a basic approach to design lightweight USMs that employ newly-developed materials with anisotropically elastic properties and good vibration characteristics.

show abstract

Mechanical optimization of a novel hollow traveling wave rotary ultrasonic motor

Cited by 20 publications

References 20 publications

A novel traveling wave rotary ultrasonic motor with piezoelectric backup function

A novel traveling wave rotary ultrasonic motor with piezoelectric backup function

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

Enhancement of torque density and power density of polymer-based ultrasonic motors via flexible usage of anisotropy in elastic property

Contact Info

Product

Resources

About