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Published on: June 13, 2022
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Ring-type traveling wave ultrasonic motor using a radial bending mode
Summary
A novel traveling wave ultrasonic motor uses a thick ring
Area of Science:
- Engineering
- Materials Science
Background:
- A novel traveling wave ultrasonic motor design is presented, utilizing the radial bending mode of a thick ring structure.
- The motor incorporates 20 PZT (lead zirconate titanate) stacks and 20 block springs, alternately nested within 40 slots on the ring's outer surface.
Discussion:
- This configuration is engineered to generate a precise traveling wave for efficient actuation.
- The radial bending mode offers a unique approach to ultrasonic motor design, potentially enhancing performance characteristics.
Key Insights:
- The prototype demonstrated a maximum rotational speed of 146 revolutions per minute (r/min).
- The motor achieved a peak torque output of 1.0 Newton-meter (N·m).
Outlook:
- Further research could explore optimizing PZT stack and spring configurations for improved speed and torque.
- Investigating the long-term durability and efficiency of this radial bending mode ultrasonic motor is recommended.
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