TY - GEN
T1 - Hybrid permanent magnet and foil bearing system for complete passive levitation of rotor
AU - Bekinal, Siddappa Iranna
AU - rao Anil, Tumkur Ramakrishna
AU - Kulkarni, Sadanand Subhas
AU - Jana, Soumendu
N1 - Funding Information:
The authors would like to acknowledge the support of Propulsion Division, National Aerospace Laboratories, Bangalore and the KLS’S Gogte Institute of Technology, Belgaum in carrying out the research work.
Publisher Copyright:
© Springer International Publishing Switzerland 2015.
PY - 2015
Y1 - 2015
N2 - This paper deals with the complete passive levitation for a typical Jeffcott rotor and rotation of the same at the speeds around 40,000 rpm. The passive levitation is achieved by supporting the rotor axially by a permanent magnet bearing and discrete bump foil bearings for the radial support. The permanent magnet bearing is made up of three pairs of ring magnets arranged in Halbach pattern. Bump foil bearings are designed for rotor weight to provide the radial support to the rotor system. The proposed rotor-bearing configuration is analysed using Finite Element Analysis (FEA) software (ANSYS) for rotor dynamic characteristics. The designed rotor bearing system is fabricated and tested up to the speeds of 40,000 rpm. The system response is acquired using advanced rotordynamic data acquisition system. The experimental results show that the rotor is completely airborne and stable at the desired speed.
AB - This paper deals with the complete passive levitation for a typical Jeffcott rotor and rotation of the same at the speeds around 40,000 rpm. The passive levitation is achieved by supporting the rotor axially by a permanent magnet bearing and discrete bump foil bearings for the radial support. The permanent magnet bearing is made up of three pairs of ring magnets arranged in Halbach pattern. Bump foil bearings are designed for rotor weight to provide the radial support to the rotor system. The proposed rotor-bearing configuration is analysed using Finite Element Analysis (FEA) software (ANSYS) for rotor dynamic characteristics. The designed rotor bearing system is fabricated and tested up to the speeds of 40,000 rpm. The system response is acquired using advanced rotordynamic data acquisition system. The experimental results show that the rotor is completely airborne and stable at the desired speed.
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U2 - 10.1007/978-3-319-09918-7_83
DO - 10.1007/978-3-319-09918-7_83
M3 - Conference contribution
AN - SCOPUS:84927604925
T3 - Mechanisms and Machine Science
SP - 939
EP - 949
BT - Vibration Engineering and Technology of Machinery - Proceedings of VETOMAC X, 2014
A2 - Sinha, Jyoti K.
PB - Kluwer Academic Publishers
T2 - 10th International Conference on Vibration Engineering and Technology of Machinery, VETOMAC 2014
Y2 - 9 September 2014 through 11 September 2014
ER -