A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic Field

For expanding the driving mode of the piezoelectric motor, a novel piezoelectric motor modulated by a magnetic field is proposed. This driving system combines piezoelectric driving and magnetic modulation together and can transform the reciprocating swing of the stator into step running of the rotor...

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Main Authors: Jichun Xing, Yong Qin
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Actuators
Subjects:
Online Access:https://www.mdpi.com/2076-0825/9/3/85
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author Jichun Xing
Yong Qin
author_facet Jichun Xing
Yong Qin
author_sort Jichun Xing
collection DOAJ
description For expanding the driving mode of the piezoelectric motor, a novel piezoelectric motor modulated by a magnetic field is proposed. This driving system combines piezoelectric driving and magnetic modulation together and can transform the reciprocating swing of the stator into step running of the rotor via the intermittent magnetic clamping between the rotor and stator. For investigating the inherent character of dynamics, the dynamic equations of key parts of the driving system are established. The natural frequencies and mode functions of the driving system are solved. A prototype was fabricated to prove the dynamic analysis and measure the output characteristic. The results show that the nature of the frequency measured from the test is coincident with theoretical analysis. In addition, by applying the driving frequency of 3 Hz, the voltage of the modulating signal of 4.5 V, the phase difference <i>α</i> between driving signal and modulating signal of 30°, the ideal outputs are 0.1046 rad/min for velocity and 0.405 Nmm for torque.
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spelling doaj.art-e38a39aa99a24f5eb9f5f506c3d1b9f12023-11-20T13:36:57ZengMDPI AGActuators2076-08252020-09-01938510.3390/act9030085A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic FieldJichun Xing0Yong Qin1School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, ChinaFor expanding the driving mode of the piezoelectric motor, a novel piezoelectric motor modulated by a magnetic field is proposed. This driving system combines piezoelectric driving and magnetic modulation together and can transform the reciprocating swing of the stator into step running of the rotor via the intermittent magnetic clamping between the rotor and stator. For investigating the inherent character of dynamics, the dynamic equations of key parts of the driving system are established. The natural frequencies and mode functions of the driving system are solved. A prototype was fabricated to prove the dynamic analysis and measure the output characteristic. The results show that the nature of the frequency measured from the test is coincident with theoretical analysis. In addition, by applying the driving frequency of 3 Hz, the voltage of the modulating signal of 4.5 V, the phase difference <i>α</i> between driving signal and modulating signal of 30°, the ideal outputs are 0.1046 rad/min for velocity and 0.405 Nmm for torque.https://www.mdpi.com/2076-0825/9/3/85electromagnetic modulationpiezoelectric motormodal functionoutput characteristic
spellingShingle Jichun Xing
Yong Qin
A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic Field
Actuators
electromagnetic modulation
piezoelectric motor
modal function
output characteristic
title A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic Field
title_full A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic Field
title_fullStr A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic Field
title_full_unstemmed A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic Field
title_short A Novel Low-Frequency Piezoelectric Motor Modulated by an Electromagnetic Field
title_sort novel low frequency piezoelectric motor modulated by an electromagnetic field
topic electromagnetic modulation
piezoelectric motor
modal function
output characteristic
url https://www.mdpi.com/2076-0825/9/3/85
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AT jichunxing novellowfrequencypiezoelectricmotormodulatedbyanelectromagneticfield
AT yongqin novellowfrequencypiezoelectricmotormodulatedbyanelectromagneticfield