摘要
采用压电陶瓷微位移驱动器控制刀具进行实时误差补偿的方法提高轴类零件加工精度。借助物理学分析并结合数学建模的方法,建立压电陶瓷微进给系统的迟滞数学模型。通过实验,针对压电陶瓷驱动器的非线性特征,给出了对其控制电压进行校正的方法。减小压电陶瓷的迟滞非线性误差,提高压电陶瓷微位移驱动器的控制精度,有助于实现压电陶瓷驱动器的高精度开环微位移控制。
The machining accuracy of shaft-like parts can be improved by using a piezoelectric ceramic micro-displacement actuator to control the tools for real-time error compensation. With the help of physics analysis and mathematical modeling methods, a lag mathematical model of piezoelectric ceramic micro-feed system was established. For the nonlinear characteristics of piezoelectric actuator, a correction method of controlling voltage was presented, which can reduce the non-linear error of piezoelectric ceramic, improve the control accuracy of piezoelectric ceramic micro-displacement actuator, and contribute to the achievement of high-precision open-loop micro-displacement control of piezoelectric ceramic actuator.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2008年第8期970-973,共4页
Acta Armamentarii
关键词
机械制造工艺与设备
微位移
压电陶瓷
迟滞
误差补偿
manufacturing processes and equipment
micro-displacement
piezoelectric ceramic
lag error compensation
