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http://dx.doi.org/10.5000/EESK.2007.11.3.063

Evaluation of Vibration Characteristics of Operating Rotational Machines Depending of Types of Foundation  

Kim, Min-Kyu (한국원자력연구원 종합안전평가연구센터)
Choun, Young-Sun (한국원자력연구원 종합안전평가연구센터)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.11, no.3, 2007 , pp. 63-72 More about this Journal
Abstract
The Emergency Diesel Generator (EDG) is a very important equipment for the safety of a Nuclear Power Plant (NPP). In this study, the operating vibration of three kinds of EDG systems was measured. The target EDG systems are Yonggwang 5 unit and Ulchin 2 and 3 units. The Yonggwang 5 and Ulchin 3 unit EDG systems are the same type but the foundation systems are different. One is an anchor bolt type and the other is a spring and viscous-damper type. The purpose of these measurements is for a verification of the vibration isolation effect depending on the foundation system. As a result, It can be said that the spring and viscous damper system of the EDG performed better for the vibration isolation than that of anchor bolt type.
Keywords
Emergency Diesel Generator (EDG); Nuclear Power Plant (NPP); foundation system; anchor bolt; coil spring-viscous damper; vibration isolation effect;
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