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A cylindrical standing wave ultrasonic motor using bending vibration transducer
Yingxiang Liu1, Weishan Chen, Junkao Liu
1State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China. liuyingxiang868@163.com
Ultrasonics
|January 11, 2011
Summary
This study introduces a novel cylindrical ultrasonic motor utilizing a bending vibration transducer. The prototype achieved a no-load speed of 165rpm and a maximum torque of 0.45Nm.
Area of Science:
- Mechanical Engineering
- Materials Science
Background:
- Ultrasonic motors offer precise motion control.
- Traditional designs face limitations in torque and speed.
Purpose of the Study:
- To propose and analyze a novel cylindrical standing wave ultrasonic motor.
- To investigate the performance of a motor utilizing a bending vibration transducer.
Main Methods:
- Design and analysis of a stator with a cylinder and bending vibration transducer.
- Finite Element Method (FEM) analysis for stator design.
- Fabrication and experimental measurement of a prototype motor.
Main Results:
- The bending mode of the cylinder was successfully excited by the transducer.
- A prototype motor demonstrated a no-load speed of 165rpm.
- The prototype achieved a maximum torque of 0.45Nm at 200V(rms).
Conclusions:
- The proposed cylindrical ultrasonic motor design is feasible.
- The bending vibration transducer effectively drives the cylindrical stator.
- The motor shows potential for applications requiring precise rotational movement.
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