베어링-페데스탈의 등가 강성에 관한 고찰

A Study on the Equivalent Dynamic Stiffness of Bearing-Pedestal

  • 김희수 (한국전력공사 전력연구원) ;
  • 배용채 (한국전력공사 전력연구원) ;
  • 이현 (한국전력공사 전력연구원) ;
  • 이대성 (한국전력공사 전력연구원)
  • 발행 : 2005.11.01

초록

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.

키워드