Effect of Stiffness Variation on Satoregen Frequency for Traveling Wave Rotary Ultrasonic Motors
- Resource Type
- Conference
- Authors
- An, Dawei; Yang, Ming; Li, Shiyang; Guo, Rongjing; Wang, Xiaole; Fang, Zhiwei
- Source
- 2017 International Conference on Computer Technology, Electronics and Communication (ICCTEC) Computer Technology, Electronics and Communication (ICCTEC), 2017 International Conference on. :218-221 Dec, 2017
- Subject
- Computing and Processing
Acoustics
Stators
Load modeling
Springs
Finite element analysis
Mathematical model
Instruments
stiffness variation
satoregen frequency
traveling wave rotary ultrasonic motors
- Language
Experimental studies reveal that the stator eigen-frequency is increasing along with the growing prestress load. However, the inherent mechanism is obscure and the equivalent physical model is not investigated especially. With introducing the external spring stiffness, the physical model involving the constraint boundary is developed and the corresponding finite element model is built. It is obvious that the computational results present the consistent variation trend with the measured data and optimize the traditional finite element modeling method. The proposed method is effective to calculate the frequency domain characteristics at the free or prestress case, which is used to optimize the structure or determine the driving frequency for traveling wave rotary ultrasonic motors.