Analysis of a Linear Ultrasonic Motor Using L-B Hybrid Transducer

Jun Kao Liu; Ying Xiang Liu; Wei Shan Chen; Sheng Jun Shi

doi:10.4028/www.scientific.net/AMR.211-212.747

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 211-212Analysis of a Linear Ultrasonic Motor Using L-B...

Analysis of a Linear Ultrasonic Motor Using L-B Hybrid Transducer

Abstract:

In this study, a linear ultrasonic motor using longitudinal and bending hybrid transducer is proposed, which contains two exponential shape horns located on two ends, and the end tips of the horns are used as the driving feet. Two groups of bending PZT ceramics are set in the middle of the transducer, and two groups of longitudinal PZT are set between the bending PZT and two horns, respectively. In this new design, longitudinal and bending vibrations of the transducer are composing and formed elliptical trajectory vibrations on the two end tips of the horns. The runners are in contact with the end tips of the horns, and the driving forces are the frictional forces between the runners and the driving tips. By using FEM method, the longitudinal and bending vibration modes are gained, and the corresponding resonant frequencies are tuned to realize the modal degeneration. At last, transient analysis is developed to gain the vibration trajectories of the driving tips, and elliptical motion trajectories are observed to be formed, which verify the feasibility of the proposed design.

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Periodical:

Advanced Materials Research (Volumes 211-212)

Pages:

747-751

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.211-212.747

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Online since:

February 2011

Authors:

Jun Kao Liu, Ying Xiang Liu, Wei Shan Chen, Sheng Jun Shi

Keywords:

Double Feet, Finite Element Model (FEM), Hybrid Transducer, Linear, Ultrasonic Motor

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