摘要
在高速精密非圆加工中,伺服刀架系统的幅值衰减产生较大的刀具轨迹跟踪误差,从而降低加工精度。以伺服刀架的传递函数为基础,采用迭代学习控制,利用系统实际输出与期望输出的偏差信号,产生新的控制信号,使得系统跟踪调节性能得以提高,从而提高非圆加工的形状误差。
Because of gain attenuation of the high speed precision servo system,large tool tracking error will be produced and machining accuracy required will be lost during high speed and fine turning of noncircular components.Based on the transfer function of the servo system,adopt iterative learning control,which produces a new input signal in response to the error signal between the actual outputs and desired outputs.Simulation results demonstrate the iterative learning control provides good tracking accuracy.
出处
《机械设计与制造》
北大核心
2011年第4期163-165,共3页
Machinery Design & Manufacture
关键词
非圆
迭代学习控制
误差
Noncircular cutting
Error
Iterative leaning control
