AUTOMATIC CONTROL OF REGENERATIVE CUTTING CHATTER BASED ON OPTIMAL REGULATION OF SPINDLE SPEED  

基于主轴转速寻优调整的再生型切削颤振自动控制(英文)

作　　者：付连宇[1] 石红雁[2] 鲍明[1] 于骏一[2] 

机构地区：[1]南京航空航天大学振动工程研究所,南京210016 [2]吉林工业大学机械科学与工程学院,长春130025

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2000年第1期59-63,共5页南京航空航天大学学报（英文版）

摘　　要：An applicable method to control regenerative cutting chatter automatically based on the optimal regulation of spindle speed is introduced. The optimal value of the phase shift angle of the regenerative chatter signal between the two successive cuts is 270°. The cutting process can be adjusted from the unstable region to stable one whenever regenerative chatter occurs if the phase shift angle is kept 270° by the optimal regulation of spindle speed. The theoretical analysis and the experimental results prove that the optimal regulation of spindle speed can effectively control regenerative cutting chatter. In addition, a reliablelly optimal control system of reliable spindle speed is presented. There is no need for system identification of the machine tool, and it is easy to put this regenerative chatter control method into practice, so the method has excellent application prospect.提出一种实用的通过主轴转速寻优调整对再生型切削颤振进行自动控制的方法。机床主轴前后两转切削颤振信号相位差的最优值为 2 70°,如果切削过程即将发生颤振 ,可以通过调整主轴转速使相位差为 2 70°把切削过程由不稳定区调整到稳定区。理论分析和试验结果表明 ,主轴转速寻优调整方法可以有效地控制再生型切削颤振。文中同时提出了一套性能可靠的主轴转速寻优控制系统 ,其再生型颤振控制方法不需要对机床系统进行辨识 ,实施起来简单易行 ,故具有广阔的生产应用前景。

关 键 词：CUTTING regenerative chatter phase shift angle spindle speed 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]