Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2005.11a
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- Pages.263-266
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- 2005
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- 1598-2548(pISSN)
A Study on the Equivalent Dynamic Stiffness of Bearing-Pedestal
베어링-페데스탈의 등가 강성에 관한 고찰
- Published : 2005.11.01
Abstract
The critical speeds and mode shapes are most important to determine the behaviors of rotor in designing rotating machinery. As the capacity and the span of turbine-generator increases, the turbine-generator system has many components such as bearings, pedestal, turbine and baseplates etc. and it is getting flexible and has many critical speeds. Especially, the characteristics of bearing-pedestal are very complicated and then they affect the entire vibration characteristics of turbine-generator system. In this paper, it is observed how to determine the equivalent dynamic stiffness of bearing-pedestal by analytic and experimental method.
Keywords
- Equivalent Dynamic Stiffness;
- Critical Speed;
- Bearing-Pedestal;
- Impact Hammer Test;
- Standard Fossil Power Plant(SFP)