Vibration Control of a High Speed Rotor Supported by the Combined Smart Bearing
- Vibration Control of a High Speed Rotor Supported by the Combined Smart Bearing
- 정세나; 김태호; 김창호; 이용복
- Vibration Control; Foil Bearing; Magnetic Bearing; Combined Smart Bearing; High Speed Rotor
- Issue Date
- International Joint Tribology Conference
- , 1-3
- Combined smart bearing (CSB) integrates two oil free
bearing technologies to take advantage of the strengths of each
bearing with minimizing each other weaknesses. It is for
enhancing dynamic stability and load carrying capacity .
Moreover, CSB have a shorter length than size of hybrid
bearing suggested by Heshmat in same performance . So, it
has the advantage of the design in high speed turbo machinery.
This paper presents vibration control of a high speed rotor
supported by CSB. An experiment set-up of a rotor bearing
system is built. And rotor dynamic analysis of the rigid rotor on
critical speeds is performed. For the experimental approach,
unbalance responses of the rigid rotor supported by each
bearings: air foil bearing (AFB) and CSB are compared to
verify the effectiveness of the CSB. First, the PD control
parameters of the magnetic bearing were to find out in stable
range experimentally. Then according to the angle of unbalance
experiments, compared the performance of AFB and CSB. The
result, the shaft vibration in a critical speed is significantly
suppressed by the CSB rather than AFB.
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- KIST Publication > Conference Paper
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