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http://dx.doi.org/10.5050/KSNVN.2006.16.5.452

A Study on the Equivalent Dynamic Stiffness of Bearing-pedestal  

Kim, Hee-Soo (한국전력공사 전력연구원)
Bae, Yong-Chae (한국전력공사 전력연구원)
Lee, Hyun (한국전력공사 전력연구원)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.16, no.5, 2006 , pp. 452-456 More about this Journal
Abstract
The critical speeds and mode shapes are most important to determine the behaviors of rotor in designing rotating machinery. As the capacity and span of turbine-generator increases, the turbine-generator system is composed of many components such as bearings, pedestal, turbine and hood and so on. Also, it is getting flexible and has many critical speeds. Especially, as the characteristics of bearing-pedestal are very complicated, 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 analytical and experimental method.
Keywords
Equivalent Dynamic Stiffness; Critical Speed; Bearing-pedestal; Impact Hammer Test; Standard Fossil Power Plant;
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  • Reference
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