Analysis of the characteristics of traveling wave ultrasonic motor considering the structural stiffness of the preload structure
Source abstract
Abstract
By analyzing the contact mechanism between the stator and rotor, this study demonstrates that the prepressure on the rotor is not a constant value because of the structural stiffness of the preload structure. In addition, this study explains the driving mechanism of the traveling wave ultrasonic motor under unsteady prepressure and deduces a dynamic model considering the structural stiffness of the preload structure. Furthermore, the relationship between the speed characteristics of the motor and the structural stiffness of the preload structure is obtained through model simulation. The simulation results are found to be in good agreement with the experimental results, which demonstrates the correctness of the dynamic model. Moreover, the output characteristics of the motor can be improved by designing an appropriate structural stiffness of the preload structure.
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Research context
OpenAlex topics: Piezoelectric Actuators and Control · Magnetic Bearings and Levitation Dynamics · Acoustic Wave Resonator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics , Nanjing 210016, People’s Republic of China
Funding
Fundamental Research Funds for the Central Universities · National Basic Research Program of China · National Natural Science Foundation of China · Funding of Jiangsu innovation Program for Graduate Education
References (22)
Show source-provided references
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