Traveling-wave piezoelectric linear motor part II: experiment and performance evaluation |
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Authors: | Ting Yung Li Chun-Chung Chen Liang-Chiang Yang Chieh-Min |
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Affiliation: | Department of Mechanical Engineering, Chung Yuan Christian University, Chung Li, Taiwan. yung@cycu.edu.tw |
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Abstract: | This article continues the discussion of a traveling-wave piezoelectric linear motor. Part I of this article dealt with the design and analysis of the stator of a traveling-wave piezoelectric linear motor. In this part, the discussion focuses on the structure and modeling of the contact layer and the carriage. In addition, the performance analysis and evaluation of the linear motor also are dealt with in this study. The traveling wave is created by stator, which is constructed by a series of bimorph actuators arranged in a line and connected to form a meander-line structure. Analytical and experimental results of the performance are presented and shown to be almost in agreement. Power losses due to friction and transmission are studied and found to be significant. Compared with other types of linear motors, the motor in this study is capable of supporting heavier loads and provides a larger thrust force. |
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