Semi-active fuzzy control of machine tool chatter vibration using smart MR dampers

Dynamic stability of cutting processes against chatter vibration is a key requirement for high-speed machining and high material removal rate with high-quality surface finish. In the present work, the stiffness and damping of the machine tool are varied semi-actively by means of a magnetorheological (MR) damper to suppress chatter. An integrated mechatronic model is presented for the chatter analysis of a machine tool equipped with MR damper. Since the structure becomes nonlinear in the presence of MR damper, a novel chatter detection index (CDI) is developed to detect chatter from time-domain vibration signals. Subsequently, a fuzzy controller is designed to compute the best supply voltage to MR damper based on the measured vibration signals. The obtained results from the numerical analysis of the integrated model are encouraging, demonstrating a significant improvement in the dynamic stability of machining process, as well as the ability of detecting and suppressing chatter.

[1]  Shih-Chieh Lin,et al.  The Effects of Variable Speed Cutting on Vibration Control in Face Milling , 1990 .

[2]  Gokhan Aydar,et al.  A new magneto-rheological fluid (MRF) washing machine damper and a novel two-way-controllable MRF valve , 2007 .

[3]  K. Palanikumar,et al.  Chatter Suppression in Boring Operation Using Magnetorheological Fluid Damper , 2008 .

[4]  Yusuf Altintas,et al.  Manufacturing Automation: Metal Cutting Mechanics, Machine Tool Vibrations, and CNC Design , 2000 .

[5]  Yusuf Altintas,et al.  Analytical Stability Prediction and Design of Variable Pitch Cutters , 1998, Manufacturing Science and Engineering.

[6]  Seung-Bok Choi,et al.  Human simulated intelligent control of vehicle suspension system with MR dampers , 2009 .

[7]  Lawrence A. Bergman,et al.  SLIDING MODE CONTROL OF CABLE-STAYED BRIDGE SUBJECTED TO SEISMIC EXCITATION , 2003 .

[8]  Yancheng Wang,et al.  Active Control of Regenerative Chatter During Metal Cutting Process , 2006 .

[9]  Tsu-Chin Tsao,et al.  A new approach to stability analysis of variable speed machining systems , 1993 .

[10]  Y. S. Tarng,et al.  Chatter suppression in turning operations with a tuned vibration absorber , 2000 .

[11]  Min Wang,et al.  On-line chatter detection and control in boring based on an electrorheological fluid , 2001 .

[12]  S. A. Tobias.  Machine-tool vibration , 1965 .

[13]  Shirley J. Dyke,et al.  PHENOMENOLOGICAL MODEL FOR MAGNETORHEOLOGICAL DAMPERS , 1997 .

[14]  Wen-Hong Zhu,et al.  A fast tool servo design for precision turning of shafts on conventional CNC lathes , 2001 .

[15]  Hyun-Moo Koh,et al.  Semi-active fuzzy control of cable-stayed bridges using magneto-rheological dampers , 2007 .

[16]  Eugene Rivin,et al.  Enhancement of dynamic stability of cantilever tooling structures , 1992 .

[17]  H. R. Karimi,et al.  Semiactive Control Methodologies for Suspension Control With Magnetorheological Dampers , 2012, IEEE/ASME Transactions on Mechatronics.

[18]  Ronald J. Triolo,et al.  A Variable Impedance Knee Mechanism for Controlled Stance Flexion During Pathological Gait , 2012, IEEE/ASME Transactions on Mechatronics.

[19]  D. Case,et al.  Design and Characterization of a Small-Scale Magnetorheological Damper for Tremor Suppression , 2013, IEEE/ASME Transactions on Mechatronics.

[20]  Billie F. Spencer,et al.  Modeling and Control of Magnetorheological Dampers for Seismic Response Reduction , 1996 .

[21]  Zichen Chen,et al.  Magnetorheological fluid-controlled boring bar for chatter suppression , 2009 .

[22]  Norman M. Wereley,et al.  Shock Isolation Systems Using Magnetorheological Dampers , 2008 .

[23]  Etsuo Marui,et al.  Suppression of chatter vibration of boring tools using impact dampers , 2000 .

[24]  Billie F. Spencer,et al.  “Smart” Base Isolation Strategies Employing Magnetorheological Dampers , 2002 .

[25]  Alpay Yilmaz,et al.  Machine-Tool Chatter Suppression by Multi-Level Random Spindle Speed Variation , 1999, Manufacturing Science and Engineering.

[26]  Wen Fang Xie,et al.  Optimized Control of Semiactive Suspension Systems Using H $_\infty$ Robust Control Theory and Current Signal Estimation , 2012, IEEE/ASME Transactions on Mechatronics.

[27]  Yang Wang,et al.  Adaptive control for frictional and impact chatter in metal cutting via piezoelectric actuator , 2003 .

[28]  A. S. Shafer,et al.  On the Feasibility and Suitability of MR Fluid Clutches in Human-Friendly Manipulators , 2011, IEEE/ASME Transactions on Mechatronics.

[29]  Philip K. Chan,et al.  In-process detection and suppression of chatter in milling , 1992 .

[30]  Kee S. Moon,et al.  Surface Texture Improvement in the Turning Process Via Application of a Magnetostrictively Actuated Tool Holder , 1998 .

[31]  Sanjiv G. Tewani,et al.  A study of cutting process stability of a boring bar with active dynamic absorber , 1995 .

[32]  Fathy Ismail,et al.  Chatter suppression by adaptive speed modulation , 1997 .

[33]  G Chen,et al.  MR damper and its application for semi-active control of vehicle suspension system , 2002 .

[34]  James Lam,et al.  Semi-active H∞ control of vehicle suspension with magneto-rheological dampers , 2005 .