FORECASTING MODEL FOR THE IDEAL PRE-FORCE OF CYLINDRICAL BENDING ROTATION ULTRASONIC MOTOR
The force factor formula of stator based on bending vibration and piezoelectric plate sandwich was deduced. It indicated that, aiming to the ultrasonic motor whose stator uses the bending vibration mode of free beam, disposing the PZT elements on the great strain which was the wave loop of bending vibration was the optimal method. A forecasting model for the ideal pre-force of cylindrical bending rotation ultrasonic motor was established. The forecasting model illuminated that the ideal pre-force was a performance parameter which had some relationship to the factors such as input exciting voltage, stator dimensions, PZT element dimensions and disposed positions. A prototype of cylindrical bending rotation ultrasonic motor was utilized to validate the forecasting model. The results showed that the values of forecasting and testing were 21.6 N and 20 N, respectively, and the two methods got a good agreement.
Ultrasonic motor Bending rotation Ideal pre-force Forecasting model
Ting-hai CHENG Xiang-dong GUO Gang BAO
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150080, China
国际会议
深圳
英文
180-183
2011-12-09（万方平台首次上网日期，不代表论文的发表时间）