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An Analytical Model for a Twisted Beam Piezoelectric Ultrasonic Micromotor
Qi, Aisha, Friend, James and Yeo, Leslie (2007). An Analytical Model for a Twisted Beam Piezoelectric Ultrasonic Micromotor. In: Veidt, Martin, Albermani, Faris, Daniel, Bill, Griffiths, John, Hargreaves, Doug, McAree, Ross, Meehan, Paul and Tan, Andy, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (325-330). 10-12 December, 2007.
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| Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials) |
| Name |
Description |
MIMEType |
Size |
Downloads |
P1.12.pdf
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Session P1.12: Piezoelectric Ultrasonic Micromotor: Qi papers |
application/pdf |
360.06KB |
102 |
| Author(s) |
Qi, Aisha
Friend, James
Yeo, Leslie
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| Title of paper |
An Analytical Model for a Twisted Beam Piezoelectric Ultrasonic Micromotor
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| Conference name |
5th Australasian Congress on Applied Mechanics (ACAM 2007)
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| Conference location |
Brisbane, Australia
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| Conference dates |
10-12 December, 2007
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| Proceedings title |
Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007)
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| Editor(s) |
Veidt, Martin
Albermani, Faris
Daniel, Bill
Griffiths, John
Hargreaves, Doug
McAree, Ross
Meehan, Paul
Tan, Andy
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| Place published |
Brisbane
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| Publisher |
Engineers Australia
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| Publication date |
2007
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| Year available |
2008
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| Volume number |
1
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| ISBN |
0 8582 5862 5
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| Start page |
325
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| End page |
330
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| Total pages |
6
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| Collection year |
2007
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| Language |
eng
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| Abstract/Summary |
An equivalent circuit, known as a Mason model, is proposed to characterize a novel ultrasonic motor in this study. This motor, which consists of a non-circular cross-section twisted
beam and a piezoelectric element, generates coupled longitudinal-torsional vibration upon application of an electric field. The model predictions and experimental data are in good agreement. For
example, under the condition of having input voltage of 100 Vpp, and driving frequency of 352.8 kHz, the model predicts a longitudinal velocity of 0.7 m/s compared to the experimental results of
0.65-0.75 m/s. The assumption is that the torsional velocity and longitudinal velocity are in a linear relationship; a proportionality coefficient K=0.259±0.012 is obtained through the experimental
data by empirically fitting.
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| Subjects |
290501 Mechanical Engineering
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| Keyword(s) |
equivalent circuit
ultrasonic motor
Mason model
piezoelectric
twisted beam
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