A study on the PID controller-gain tuning of the magnetically suspended milling spindle for chatter-free cutting

채터없는 안정 가공을 위한 자기베어링 밀링 주축의 PID 제어 게인 튜닝 연구

A method for PID controller tuning based on process models for unstable processes was introduced. The optimal. proportional and derivative gains of the AMBs were determined by the tuning method and utilized for the chatter stability analysis in order to search for the chatter-free cutting region. The stability analysis results showed that the optimal gains give wider chatter-free cutting region, and as a result the proposed tuning method was confirmed to be an effective tuning method for determining the optimal gains of the AMBs.