μ synthesis applied to the compliance minimization of an active magnetic bearing HSM spindle's thrust axis

Machining Science and Technology

Volumn 7, Issue 1, 2003, Pages 19-51

  Fittro, Roger L ^a   Knospe, Carl R ^b   Stephens, L Scott ^c  

^a ASTON UNIVERSITY   (United Kingdom)

^b University of Virginia   (United States)

^c UNIVERSITY OF KENTUCKY   (United States)

Author keywords

Bearing; Controls; High speed machining; Magnetics; Spindle

Indexed keywords

CONTROL SYSTEM SYNTHESIS; MAGNETIC BEARINGS; MATHEMATICAL MODELS; OPTIMAL CONTROL SYSTEMS; THREE TERM CONTROL SYSTEMS;

ACTIVE MAGNETIC BEARING; HIGH SPEED MACHINING; SPINDLE;

MACHINING;

EID: 0037250447     PISSN: 10910344     EISSN: None     Source Type: Journal    
DOI: 10.1081/MST-120018954     Document Type: Article

References (17)

1. American Machinist (August 1989). Magnetically Levitated Spindle to Debut, Delivers up to 52 kW at 40,000 RPM. Penton Media, Inc. 78-79.
2. Brunet, M., Wagner, B. (1994) Analysis of the performance of an AMB spindle in creep feed grinding. In: Proceedings of the 4th International Symposium on Magnetic Bearings. Zurich, Switzerland, August, pp. 519-524.
3. Ebert, J.A. (1995). A Processor - I/O Link for a Digital Controller of Magnetic Bearings. Master's thesis, University of Virginia.
4. Fittro, R.L. (1998) A High Speed Machining Spindle with Active Magnetic Bearings: Control Theory, Design and Application. Ph.D. dissertation, University of Virginia, August.
5. Fujita, M., Matsumura, F., Namerikawa, T. (1992). μ-Analysis and synthesis of a flexible beam magnetic suspension system. In: Proceedings of the 3rd International Symposium on Magnetic Bearings. Alexandria, VA, July, pp. 495-504.
6. Fujita, M., Namerikawa, T., Matsumura, F., Uchida, K. (1995). μ-Synthesis of an electromagnetic suspension system. IEEE Trans. Automat. Contr. 40(3):530-536.
7. ∞ disturbance attenuation in AMB control. In: Proceedings of the 3rd International Symposium on Magnetic Bearings. Alexandria, VA, July, Technomics Publishing, pp. 485-494.
8. Lösch, F., Gähler, C., Herzog, R. (1998). μ-Synthesis controller design for a 3 MW pump running on AMBs. In: Proceedings of the 6th International Symposium on Magnetic Bearings. Cambridge, MA, August, Technomics Publishing, pp. 415-428.
9. Machine Design (1989). Magnetic Bearings Hold Spindle for Milling. November, p. 956.
10. Meeker, D.C., Maslen, E.H., Noh, M.D. (1996) An augmented circuit model for magnetic bearings including eddy currents, fringing, and leakage. IEEE Trans. Magn. 32(4).
11. Nonami, K., Takayuki, I. (1994). μ Synthesis of flexible rotor magnetic bearing systems. In: Proceedings of the 4th International Symposium on Magnetic Bearings. Zurich, Switzerland, August, pp. 73-78.
12. ∞ control of milling AMB spindle. In: Proceedings of the 4th International Symposium on Magnetic Bearings. Zurich, Switzerland, August, pp. 531-536.
13. Stephens, L.S. (1995). Design and Control of Active Magnetic Bearings for a High Speed Machining Spindle. Ph.D. dissertation. University of Virginia, August.
14. Stephens, L.S., Knospe, C.R. (1996). μ-Synthesis based, robust controller design for AMB machining spindles. In: Proceedings of the 5th International Symposium on Magnetic Bearings. Kanazawa, Japan, August.
15. Young, P.M. (1993). Robustness with Parametric and Dynamic Uncertainty. Ph.D. dissertation. California Institute of Technology.
16. Zhou, K., Doyle, J.C., Glover, K. (1996). Robust and Optimal Control. Upper Saddle River, NJ: Prentice Hall.
17. Zmood, R.B., Anand, D.K., Kirk, J.A. (1987). The influence of eddy currents on magnetic actuator performance. Proc. IEEE 75(2):259-260.