TY - GEN
T1 - OPTIMAL DESIGN OF A SENSORLESS MAGNETIC SUSPENSION SYSTEM USING A TUNED LC CIRCUIT
AU - Krause, Robert M.
AU - Sinha, Alok
N1 - Publisher Copyright:
© 1998 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1998
Y1 - 1998
N2 - In the existing literature, a sensorless AC magnetic suspension system which does not require direct damping of the suspended object for stability has been proposed. This is accomplished by suspending the electromagnet with a spring and damper. First, using a linearized transfer function model for the overall suspension system developed by Jin and Higuchi (.1994), a study of the system's stability is presented in this paper. A root locus is then used in order to see how the damping applied to the electromagnet affects stability. Next, optimization methods and results are proposed to determine values for indirect spring stiffness and damping to most effectively stabilize the system. Lastly, results from linearized analyses are compared to those from numerical integration of the nonlinear system of differential equations.
AB - In the existing literature, a sensorless AC magnetic suspension system which does not require direct damping of the suspended object for stability has been proposed. This is accomplished by suspending the electromagnet with a spring and damper. First, using a linearized transfer function model for the overall suspension system developed by Jin and Higuchi (.1994), a study of the system's stability is presented in this paper. A root locus is then used in order to see how the damping applied to the electromagnet affects stability. Next, optimization methods and results are proposed to determine values for indirect spring stiffness and damping to most effectively stabilize the system. Lastly, results from linearized analyses are compared to those from numerical integration of the nonlinear system of differential equations.
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U2 - 10.1115/IMECE1998-0408
DO - 10.1115/IMECE1998-0408
M3 - Conference contribution
AN - SCOPUS:85124529913
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 113
EP - 120
BT - Vibration and Noise Control
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1998 International Mechanical Engineering Congress and Exposition, IMECE 1998
Y2 - 15 November 1998 through 20 November 1998
ER -