Experimental modal analysis of a gyroscopic rotor in active magnetic bearings

Gudrun Mikota; Andreas Josef Pröll; Siegfried Silber

Experimental modal analysis of a gyroscopic rotor in active magnetic bearings

Gudrun Mikota, Andreas Josef Pröll, Siegfried Silber

Institute of Machine Design and Fluid Power

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

For a gyroscopic rotor in active magnetic bearings, the rigid body natural frequencies and mode shapes are investigated. An impulsive excitation force is generated by two rectangular pulses in the current control reference signal. With vibration measurements available in two perpendicular directions for each bearing, experimental modal analyses are performed at rotational speeds up to 100000 rpm. Identification results demonstrate the gyroscopic split of natural frequencies.

Original language	English
Title of host publication	Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB14), August 11-14, 2014, Linz, Austria
Pages	661-664
Number of pages	4
Publication status	Published - Aug 2014

Fields of science

203 Mechanical Engineering
203015 Mechatronics

JKU Focus areas

Mechatronics and Information Processing

Cite this

@inproceedings{67fe9fade20a44d3953685739a70129a,

title = "Experimental modal analysis of a gyroscopic rotor in active magnetic bearings",

abstract = "For a gyroscopic rotor in active magnetic bearings, the rigid body natural frequencies and mode shapes are investigated. An impulsive excitation force is generated by two rectangular pulses in the current control reference signal. With vibration measurements available in two perpendicular directions for each bearing, experimental modal analyses are performed at rotational speeds up to 100000 rpm. Identification results demonstrate the gyroscopic split of natural frequencies.",

author = "Gudrun Mikota and Pr{\"o}ll, \{Andreas Josef\} and Siegfried Silber",

year = "2014",

month = aug,

language = "English",

pages = "661--664",

booktitle = "Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB14), August 11-14, 2014, Linz, Austria",

}

Experimental modal analysis of a gyroscopic rotor in active magnetic bearings. / Mikota, Gudrun ; Pröll, Andreas Josef; Silber, Siegfried.
Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB14), August 11-14, 2014, Linz, Austria. 2014. p. 661-664.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

TY - GEN

T1 - Experimental modal analysis of a gyroscopic rotor in active magnetic bearings

AU - Mikota, Gudrun

AU - Pröll, Andreas Josef

AU - Silber, Siegfried

PY - 2014/8

Y1 - 2014/8

N2 - For a gyroscopic rotor in active magnetic bearings, the rigid body natural frequencies and mode shapes are investigated. An impulsive excitation force is generated by two rectangular pulses in the current control reference signal. With vibration measurements available in two perpendicular directions for each bearing, experimental modal analyses are performed at rotational speeds up to 100000 rpm. Identification results demonstrate the gyroscopic split of natural frequencies.

AB - For a gyroscopic rotor in active magnetic bearings, the rigid body natural frequencies and mode shapes are investigated. An impulsive excitation force is generated by two rectangular pulses in the current control reference signal. With vibration measurements available in two perpendicular directions for each bearing, experimental modal analyses are performed at rotational speeds up to 100000 rpm. Identification results demonstrate the gyroscopic split of natural frequencies.

M3 - Conference proceedings

SP - 661

EP - 664

BT - Proceedings of the 14th International Symposium on Magnetic Bearings (ISMB14), August 11-14, 2014, Linz, Austria

ER -