关 键 词：

3917 专用转塔车床回转盘部件设计 专用 车床 回转 部件 设计

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3917 专用转塔车床回转盘部件设计,3917,专用转塔车床回转盘部件设计,专用,车床,回转,部件,设计

内容简介：

Keynote Speech W Modeling and Control of Magnetic Bearing Systems Professor Zongli Lm Senior Member, IEEE The University of Vi USA Abstract Magnetic bearings take radial loads or b s t los by utilizing a magnetic field to support the shaft rather than a m e c h a n i c a l forces as in fluid f i l m or rolling elements. The advantages of magnetic bearings include very long life, elimination of oil supply, low weight, reduction of fire hazard, vibration control and diagnostic capabfity. These advantages motivate many applications of magnetic bearings. In particular, the long l i f e , low weight, and vibration controllability nature of magnetic bearings motivate their applications in suspending energy stmage high speed flywheels. Their advantages of long life and elimination of oil supply motivate the applications of magnetic bearings in the aaificial heat pumps. The applications of magnetic bearings also pose sig&icant challenges in control design. This talk aims to to share some of our experieuce in meeting these challenges. About author: Zongli Lin w a s bom in Fuqing, Fujian, China on February 24, 1964. He received his B.S. degree in mathematics and computer science f r o m Xiamen University, Xiamen, China, in 1983, his Master of Engineering degree in automatic control f r o m Chinese Academy of Space Technology, Beijing, China, in 1989, and his Ph.D. degree in electrical and computer engineering f r o m Washington State University, Pulhnan, Washington, in May 1994. From July 1983 to July 1986, Dr. Lm worked as a control engineer at Chinese Academy of Space Technology. In January 1994, he joined the Department of Applied Mathematics and Statistics, State University of New York a t Stony Brook as a visiting assistant professor, where be became an assistant professor in September 1994. Since July 1997, he has been with the Department of Eleceical and Computer Engineering at University of Viginia, where his is currently an associate professor. His current research interests include nonlinear control, robust control, and control of magnetic bearing systems. In these areas he has published several papers. He is also the author of the b o o k Low Gain Feedback (Springer-Verlag. London, 1998) and a co-author (with Tingshu Hu) of the recent book, Control Systems with Actuator Saturation: Analysis and Design, (Birkhauser, Boston, 2001). A senior member of LEEE, Dr. Lm was an associate editor on,the Conference Editorial Board of the EEE Control Systems Society and currently serves as an Associate Editor of IEEE Transactions on Automatic Control. He is also a member of the IEEE Control Systems Societys Technical Committee. on Nonlinear Systems and Control and heads its Working Group on Control with Constraints. He is the recipient of a US Oflice of Naval Research Young Investigator A