Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory

This paper proposes a driving method, the superimposed pulse driving method, that can make an ultrasonic motor run at a low speed. Although this method solves the periodic oscillation of speed in a traditional low-speed driving motor, it still has a small periodic fluctuation, which affects the stab...

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Autores principales:	Weijun Zeng, Song Pan, Lei Chen, Weihao Ren, Xiaobin Hu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ultrasonic motor superimposed pulse driving method beat traveling wave low speed Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
Acceso en línea:	https://doaj.org/article/6d1b3e7f9d46420c934c001dc42c36e5
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id	oai:doaj.org-article:6d1b3e7f9d46420c934c001dc42c36e5
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spelling	oai:doaj.org-article:6d1b3e7f9d46420c934c001dc42c36e52021-11-25T15:57:00ZResearch on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory10.3390/act101103042076-0825https://doaj.org/article/6d1b3e7f9d46420c934c001dc42c36e52021-11-01T00:00:00Zhttps://www.mdpi.com/2076-0825/10/11/304https://doaj.org/toc/2076-0825This paper proposes a driving method, the superimposed pulse driving method, that can make an ultrasonic motor run at a low speed. Although this method solves the periodic oscillation of speed in a traditional low-speed driving motor, it still has a small periodic fluctuation, which affects the stability of the speed. To reduce the fluctuation rate of the motor speed, the structure model and driving model of the motor are established, based on the theory of a beat traveling wave, and the motion characteristics of the particle point are analyzed in this paper. The simulation curve of the motor speed is obtained according to the stator and rotor contact model and the transfer model. The research shows that the driving method introduced in this paper causes the stator surface to generate a traveling beat wave, and the driving end of the stator generates an intermittent reciprocating vibration and drives the rotor rotation, which is the mechanism of low-speed operation when the driving method is used to drive the motor, as well as the reason for the periodic fluctuation of the motor speed. To improve the speed stability, this paper controlled the output performance of the motor by changing the two control variables—prepressure and frequency difference—and concluded that the variation trend of the average speed and speed volatility were consistent with the variation trend of the motor’s average speed determinant and the speed volatility determinant, respectively, which is verified by the velocity measurement experiment and the vibration measurement experiment. These insights lay the theoretical foundation for the velocity adjustment and stability optimization and, finally, the application of the new driving method is prospected.Weijun ZengSong PanLei ChenWeihao RenXiaobin HuMDPI AGarticleultrasonic motorsuperimposed pulse driving methodbeat traveling wavelow speedMaterials of engineering and construction. Mechanics of materialsTA401-492Production of electric energy or power. Powerplants. Central stationsTK1001-1841ENActuators, Vol 10, Iss 304, p 304 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ultrasonic motor superimposed pulse driving method beat traveling wave low speed Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
spellingShingle	ultrasonic motor superimposed pulse driving method beat traveling wave low speed Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Weijun Zeng Song Pan Lei Chen Weihao Ren Xiaobin Hu Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory
description	This paper proposes a driving method, the superimposed pulse driving method, that can make an ultrasonic motor run at a low speed. Although this method solves the periodic oscillation of speed in a traditional low-speed driving motor, it still has a small periodic fluctuation, which affects the stability of the speed. To reduce the fluctuation rate of the motor speed, the structure model and driving model of the motor are established, based on the theory of a beat traveling wave, and the motion characteristics of the particle point are analyzed in this paper. The simulation curve of the motor speed is obtained according to the stator and rotor contact model and the transfer model. The research shows that the driving method introduced in this paper causes the stator surface to generate a traveling beat wave, and the driving end of the stator generates an intermittent reciprocating vibration and drives the rotor rotation, which is the mechanism of low-speed operation when the driving method is used to drive the motor, as well as the reason for the periodic fluctuation of the motor speed. To improve the speed stability, this paper controlled the output performance of the motor by changing the two control variables—prepressure and frequency difference—and concluded that the variation trend of the average speed and speed volatility were consistent with the variation trend of the motor’s average speed determinant and the speed volatility determinant, respectively, which is verified by the velocity measurement experiment and the vibration measurement experiment. These insights lay the theoretical foundation for the velocity adjustment and stability optimization and, finally, the application of the new driving method is prospected.
format	article
author	Weijun Zeng Song Pan Lei Chen Weihao Ren Xiaobin Hu
author_facet	Weijun Zeng Song Pan Lei Chen Weihao Ren Xiaobin Hu
author_sort	Weijun Zeng
title	Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory
title_short	Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory
title_full	Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory
title_fullStr	Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory
title_full_unstemmed	Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory
title_sort	research on low-speed driving model of ultrasonic motor based on beat traveling wave theory
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6d1b3e7f9d46420c934c001dc42c36e5
work_keys_str_mv	AT weijunzeng researchonlowspeeddrivingmodelofultrasonicmotorbasedonbeattravelingwavetheory AT songpan researchonlowspeeddrivingmodelofultrasonicmotorbasedonbeattravelingwavetheory AT leichen researchonlowspeeddrivingmodelofultrasonicmotorbasedonbeattravelingwavetheory AT weihaoren researchonlowspeeddrivingmodelofultrasonicmotorbasedonbeattravelingwavetheory AT xiaobinhu researchonlowspeeddrivingmodelofultrasonicmotorbasedonbeattravelingwavetheory
_version_	1718413384237449216

Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory

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