According to the vibration affect on precision in turning, a turning vibration active control system was designed. An improved feedback controller based on artificial immune system was adopted, and actuator was made of piezoelectric ceramic material. The model of actuator and tool holder is constructed. Simulation was realized on Matlab, and the result verifies that the control system for controlling vibration can reduce the amplitude of the vibration by more than 97％. Furthermore, the test of turning vibration active control is performed on a general turning machine under common speed, in which the workpiece is 45 # steel, and the cutting depth is 0. 07mm. The results verify that the designed system can effectively suppress the amplitude of the vibration by more than 37％.%针对车削加工时振动对加工精度的影响,设计了一种车削振动主动控制系统,系统控制器采用基于人工免疫系统的改进型反馈控制器,执行器采用压电陶瓷材料设计制作,建立压电陶瓷执行器和专用刀架传递函数模型,在Matlab环境下进行建模仿真,当振动频率在50～150Hz时仿真结果表明该控制系统能抑制振幅97%以上;另外进行了现场试验,以普通45#钢为车削工件,车削深度为0.07mm,在正常转速下对车削振动进行主动控制,结果证明设计的车削振动控制系统能抑制车削振动幅度37%以上.
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