An ultrasonic piezoelectric motor utilizing axial-torsional coupling in a pretwisted non-circular cross-sectioned prismatic beam

@article{Wajchman2008AnUP,
  title={An ultrasonic piezoelectric motor utilizing axial-torsional coupling in a pretwisted non-circular cross-sectioned prismatic beam},
  author={D. Wajchman and Kuang-Chen Liu and James R. Friend and Leslie Y. Yeo},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
  year={2008},
  volume={55},
  pages={832-840}
}
A rotary piezoelectric motor design with simple structural components and the potential for miniaturization using a pretwisted beam stator is demonstrated in this paper. The beam acts as a vibration converter to transform axial vibration input from a piezoelectric element into combined axial-torsional vibration. The axial vibration of the stator modulates the torsional friction forces transmitted to the rotor. Prototype stators measuring 6.5 times 6.5 times 67.5 mm were constructed using… CONTINUE READING

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