| A new hybrid piezoelectric ultrasonic motor with two stators |
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| 作者姓名： | 易幼平 WolfangSeemann RainerGausmann 钟掘 |
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| 作者单位： | [1]CollegeofMechanicalandElectricalEngineering,CentralSouthUniversity,Changsha410083,China [2]InstitutfurTechnischeMechanik,UniversitatKarlsruhe,Karlsruhe76128,Germany [3]AGMaschinendynamik,UniversitatKaiserslautern,Kaiserslautern67653,Germany |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | A new hybrid piezoelectric ultrasonic motor, which consists of one rotor and two stators, was proposed in this paper. In order to match the resonance frequencies of longitudinal vibration and torsional vibration excited in the stators, a symmetrical structure was adopted in design of the motor. A so-called mass matching method, namely adding two rings to the outside circumference of the two stators respectively, was used to adjust the resonance frequencies of these two vibrations. A finite element model was developed using ANSYS software for the purpose of analyzing the resonance frequencies of longitudinal vibration and torsional vibration as well as the function of the adjusting rings. The results show that the resonance frequency of torsional vibration varies with the position of the ring, but the resonance frequency of longitudinal vibration changes little. By means of adjusting the mass and the position of the rings, the first order resonance frequency of longitudinal vibration is coincided with that of torsional vibration and the value is 20.75kHz. An experimental prototype motor was fabricated according to the analytical results and its performance is in agreement with the theoretical predictions. The speed of motor reaches the maximum 92r/min at the working frequency 19.0kHz.
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| 关 键 词： | 压电 超声马达 锆钛酸铅 谐振频率 振动 |
| 收稿时间： | 23 September 2004 |
| 修稿时间： | 25 December 2004 |
A new hybrid piezoelectric ultrasonic motor with two stators |
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| Yi You-ping , Wolfgang Seemann , Rainer Gausmann and Zhong Jue.A new hybrid piezoelectric ultrasonic motor with two stators[J].Journal of Central South University of Technology,2005,12(3):324-328. |
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| Authors: | Yi You-ping Wolfgang Seemann Rainer Gausmann and Zhong Jue |
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| Affiliation: | (1) College of Mechanical and Electrical Engineering, Central South University, 410083 Changsha, China;(2) Institut für Technische Mechanik, Universit?t Karlsruhe, 76128 Karlsruhe, Germany;(3) AG Maschinendynamik, Universit?t Kaiserslautern, 67653 Kaiserslautern, Germany |
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| Abstract: | A new hybrid piezoelectric ultrasonic motor, which consists of one rotor and two stators, was proposed in this paper. In order to match the resonance frequencies of longitudinal vibration and torsional vibration excited in the stators, a symmetrical structure was adopted in design of the motor. A so-called mass matching method, namely adding two rings to the outside circumference of the two stators respe ctively, was used to adjust the resonance frequencies of these two vibrations. A finite element model was developed using ANSYS software for the purpose of analyzing the resonance frequencies of longitudinal vibration and torsional vibration as well as the function of the adjusting rings. The results show that the resonance frequency of torsional vibration varies with the position of the ring, but the resonance frequency of longitudinal vibration changes little. By means of adjusting the mass and the position of the rings, the first order resonance frequency of longitudinal vibration is coincided with that of torsional vibration and the value is 20.75 kHz. An experimental prototype motor was fabricated according to the analytical results and its performance is in agreement with the theoretical predictions. The speed of motor reaches the maximum 92 r/min at the working frequency 19.0 kHz. |
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| Keywords: | piezoelectric ultrasonic motor lead zirconate titanate resonance frequency vibration |
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