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TECHNICAL PAPERS

Optimal Profile Design for the Resonator Beam of an Ultrasonic Motor via Finite Element Modeling and Taguchi Methodology

[+] Author and Article Information
Paul C.-P. Chao, Jeng-Sheng Huang, Chi-Wei Chiu

Department of Mechanical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan 32023, R. O. C.

J. Vib. Acoust 126(4), 465-475 (Dec 21, 2004) (11 pages) doi:10.1115/1.1804993 History: Received September 01, 2002; Revised April 01, 2004; Online December 21, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic diagram of the piezoelectric resonator beam
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Symmetric beam profile generation via specifying vertical locations of two intermediate intercept points (i.e., control factors D and E)
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Spline profiles of resonator beam generated by various combinations of two intermediate profile points
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(a) Pi plot of relative significant effect for the evaluation characteristic of output power (b) Pi plot of relative significant effect for the evaluation characteristic of normal force
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(a) Variance line plot of each design factor with respect to the evaluation characteristic of power output: (b) variance line plot of each design factor with respect to the evaluation characteristic of normal force, (c) Line plots of factors D and E with respect to power output, and (d) Line plots of factors D and E with respect to contact normal force
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Time responses of the resonator-rotor system for Case 14: (a) axial displacement of the resonator tip uNe+1, (b) transverse displacement of the resonator tip vNe+1, (c) magnitude of contact normal force |FN|, (d) magnitude of contact tangential force |FT|, (e) rotational velocity of the rotor θ̇ and (f ) output power of the rotor P
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Time responses of the resonator for Case 9: (a) axial displacement of the resonator tip uNe+1 (b) transverse displacement of the resonator tip vNe+1, (c) magnitude of contact normal force |FN|, (d) magnitude of contact tangential force |FT|, (e) rotational velocity of the rotor θ̇, and (f ) output power of the rotor P
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Beam element coordinate systems

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