Stability and Control for Cutting Chatter Based on Active Magnetic Bearings

Abstract

Abstract: An active control technology for milling chatter was proposed based on AMBs. The effects of the AMB equivalent stiffness and equivalent damping on the milling stability were analyzed by finite element, and the milling chatter was controlled actively. The results show that the equivalent stiffness of AMBs may change the critical speed of electric spindle, and has little effect on critical milling width. On the contrary, the equivalent damping of AMBs can increase the critical milling width dramatically, and has little effect on the spindle critical speed. In addition, the chatter control effects show that the milling chatter can be suppressed by adjusting the equivalent stiffness of AMBs effectively.

Key words: electric spindle, active magnetic bearing(AMB), chatter, vibration control

摘要： 提出了基于主动磁轴承的铣削颤振主动控制技术。用有限元法分析了主动磁轴承等效刚度与等效阻尼对铣削稳定性区域的影响，并对铣削过程中的颤振进行了主动控制。结果表明:主动磁轴承的等效刚度能够改变电主轴转子的临界转速，但对铣削的临界切削宽度影响很小；相反，主动磁轴承的等效阻尼能够较大幅度地增大铣削的临界切削宽度，但对电主轴转子的临界转速影响不大。颤振的控制效果表明，调节主动磁轴承的等效刚度和等效阻尼能够减小铣削过程中颤振的振幅。

关键词: 电主轴, 主动磁轴承, 颤振, 振动控制

CLC Number:

TG156

Qiao Xiaoli , Zhu Changsheng, Zhong Zhixian. Stability and Control for Cutting Chatter Based on Active Magnetic Bearings[J]. China Mechanical Engineering.

乔晓利, 祝长生, 钟志贤. 基于主动磁轴承的切削颤振稳定性分析及控制[J]. 中国机械工程.

References

[1]Siegwart R, Larsouneur R，Traxler A. Design and Performance of a High Speed Milling Spindle in Digital Controlled Active Magnetic Bearings[C]//Proceedings of the 2nd International Symposium on Magnetic Bearings. Tokyo， 1990：197-204. [

2]Kimman M H，Langen H H， Schmidt R H. Milling Spindle with Active Magnetic Bearings [J]. Mechatronics， 2010，42(2)：224-235.

[3]Siddhpura M, Paurobally R. A Review of Chatter Vibration Research in Turning [J]. International Journal of Machine Tools & Manufacture, 2012,61:27-47.

[4]Arnold R N. The Mechanism of Tool Vibration in Cutting of Steel [J]. Proc. Inst. Mech. Eng.， 1946,154(1):261-284.

[5]Eynian M. Prediction of Vibration Frequencies in Milling Using Modified Nyquist Method [J]. CIRP Journal of Manufacturing Science and Technology, 2015, 32(67):123-132.

[6]Yang Y，Muoa J，Altintas Y. Optimization of Multiple Tuned Mass Dampers to Suppress Machine Tool Chatter[J]. International Journal of Machine Tools and Manufacture, 2010，50(9): 834-842.

[7]乔晓利，祝长生.基于内置力执行器的电主轴铣削颤振的主动控制[J].机械工程学报，2012，48(1)：187-192.

Qiao Xiaoli， Zhu Changsheng. Active Control of Milling Chatter Based on the Built-in Force Actuator [J]. Journal of Mechanical Engineering，2012，48(1)：187-192.

[8]蒋科坚.主动磁轴承-转子系统振动控制技术[D]. 杭州：浙江大学，2001.

[9]Wang Tongyue, He Ning， Li Liang. Vibration Model in Milling of Thin-walled Components [J]. Chinese Journal of Mechanical Engineering，2007，43(8)：22-25.

[10]李忠群,刘强. 圆角铣削颤振稳定域建模与仿真研究[J]. 机械工程学报，2010，46(7)；181-186.

Li Zhongqun，Liu Qiang. Modeling and Simulation of Chatter Stability for Circular Milling [J]. Journal of Mechanical Engineering， 2010， 46(7) ：181-186.

[11]乔晓利,祝长生. 永磁型电主轴多频率振动的主动控制[J].中国机械工程,2014,25(2):162-168.

Qiao Xiaoli, Zhu Changsheng. An Active Multiple Frequency Vibration Control Scheme of Grinding Wheel in Permanent Magnet (PM) Electric Spindle Rotor System[J]. China Mechanical Engineering, 2014,25(2):162-168.

[12]杨建忠,李江威. 铣削加工过程稳定性分析[J]. 中国机械工程,2013,24(3):360-365.

Yang Jianzhong, Li Jiangwei. Analysis of Milling Process Stability[J]. China Mechanical Engineering, 2013,24(3):360-365.

[1]	LYU Shujie;LI Haolin. Stability Prediction in CNC Pocket Milling Processes [J]. China Mechanical Engineering, 2019, 30(18): 2236-2241.
[2]	Li Guolong, Zhao Jun, Liu Xiaoxu, Yang Yong. Construction of SLD in Gear Hobbing Process Based on FEA [J]. China Mechanical Engineering, 2016, 27(17): 2286-2292,2297.
[3]	Chi Yulun, Li Haolin. Study on Contact Stiffness and Natural Frequency in Cylindrical Plunge Grinding [J]. China Mechanical Engineering, 2016, 27(10): 1294-1298,1326.
[4]	Shi Zhongquan , Ye Wenhua . Research on LQG Control of Spindle Vibration Based on Voice Coil Motor Actuator [J]. China Mechanical Engineering, 2016, 27(10): 1308-1314.
[5]	Wu Chao, Yin Xuemei, Wang Wen. Testing Research of Rotor Center Trajectory of Oil-film Bearing with GMA under Dynamic Control [J]. China Mechanical Engineering, 2016, 27(01): 41-45.
[6]	Li Qinfeng, Ren Chengzu, Zhang Bin, Li Decheng, Chen Xiaofeng. Internal ELID Grinding Based on Active Control of Wheel Radial Chatter [J]. China Mechanical Engineering, 2015, 26(9): 1179-1183.
[7]	Zhang Yongliang, Pan Jianjian, Hong Ming, Zhang Wei. Modal Simulation and Experiment Based on MRF Damping Turning Tool [J]. China Mechanical Engineering, 2015, 26(7): 898-902.
[8]	Liu Yufei, Li Wei, Yang Xuefeng, Xu Han. Natural Frequencies and Modal Shape Characteristics of a Flexible Manipulator with Elastic Joints [J]. China Mechanical Engineering, 2015, 26(7): 954-959.
[9]	Zhao Yanqing, Xia Jingjing, Gao Qiang, Song Weizhi, Han Ning. VMTPD and Its Performance of Wideband Vibration Reduction [J]. China Mechanical Engineering, 2015, 26(19): 2571-2574,2580.
[10]	Yan Junxia, Ou Bingxian, . Chatter Depression of Boring Rod Based on Friction Energy Dissipation [J]. China Mechanical Engineering, 2015, 26(16): 2143-2148.
[11]	Zi Jiaojiao;Liu Hongzhao;Jiang Xi;Liu Lilan. Reliability Assessment of Electric Spindle Based on Degradation Values Distribution [J]. China Mechanical Engineering, 2014, 25(6): 807-812.
[12]	Liu Changyi, Tang Zhi'an, Yang Sheng, Lu Yuandong. Machining Stability and Process Parameters Planning for Helical Milling Operation [J]. China Mechanical Engineering, 2014, 25(22): 3022-3027,3065.
[13]	Hu Junfeng1;Zhang Xianmin2. Vibration Control of Piezoelectric Flexible Structure Based on μ Synthesis [J]. China Mechanical Engineering, 2014, 25(2): 147-151,156.
[14]	Qiao Xiaoli1,2;Zhu Changsheng1. An Active Multiple Frequency Vibration Control Scheme of Grinding Wheel in Permanent Magnet(PM) Electric Spindle Rotor System [J]. China Mechanical Engineering, 2014, 25(2): 162-168.
[15]	Li Hongwei;Yu Wentao;Liu Shuqin. Mode Analysis and Design of Maglev Flexible Rotor with ANSYS [J]. China Mechanical Engineering, 2014, 25(11): 1447-1452,1459.