标题：An Active Control Method for Chatter Suppression in Thin Plate Turning
作者：Ma, Haifeng ;Guo, Jiajie ;Wu, Jianhua ;Xiong, Zhenhua ;Lee, Kok-Meng
作者机构：[Ma, Haifeng ] Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 更多
通讯作者地址：[Xiong, Z] State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong UniversityChina;
来源：IEEE Transactions on Industrial Informatics
关键词：Active control; displacement field reconstruction (DFR); distributed-parameter system; regenerative chatter; thin plate turning
摘要：This paper presents an active control method, consisting of an adaptive sliding-mode controller (ASMC) and a displacement field reconstruction (DFR) method, for chatter suppression in turning of thin-walled workpieces (such as compressor disks and casings in aircraft engines) where low workpiece stiffness renders machining with potential regenerative chatter. Due to the presence of multi-modal dynamics, variant modal parameters, and measurement difficulties, active chatter control of thin plate turning has been challenging. Unlike existing controls based on a lumped-parameter single degree-of-freedom cutting model, a distributed-parameter dynamic model of a rotating thin plate with multiple vibration modes is used to analyze the machining stability with the designed controller. Moreover, model parameters of the plate are not needed to construct the controller. The DFR is employed to capture the plate dynamic behavior for feedback to the ASMC during turning, overcoming the long existing difficulties to measure plate vibration at the cutting point. A fast tool servo is utilized in the control implementation. Theoretical analyses, numerical simulations, and experimental evaluation on a lathe demonstrate that chatter in thin plate turning can be effectively attenuated with the proposed active control method. © 2005-2012 IEEE.