摘要
通过提高压电陶瓷微位移驱动器的控制精度,用来减小轴类零件中受力变形误差,提高轴类零件的加工精度.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分析,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.
Through increasing the control precision of the piezoelectric ceramic micro-displacement actuator（PCMDA） for reducing the deformation errors of the axis accessory parts under the force action, the machining accuracy is increased. The PCMDA is used to control the tool for real-time error compensation to raise the machining accuracy for axis accessory parts. For this, a delaying mathematical model of PCMDA is established with the help of physical analysis and the mathematical modeling. Considering the nonlinear characteristics of the PCMDA, a method for correcting the control voltage is given through some experiments, thus decreasing the delaying nonlinear error of piezoelectric ceramics.
出处
《沈阳理工大学学报》
CAS
2008年第3期16-20,共5页
Journal of Shenyang Ligong University
关键词
微位移
压电陶瓷
轴类零件
迟滞
误差补偿
micro-displacement
piezoelectric ceramic
axis accessory
delaying
error-compensation
