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http://dx.doi.org/10.5516/NET.2008.40.4.285

A PERFORMANCE ASSESSMENT OF A BASE ISOLATION SYSTEM FOR AN EMERGENCY DIESEL GENERATOR IN A NUCLEAR POWER PLANT  

Choun, Young-Sun (Korea Atomic Energy Research Institute)
Kim, Min-Kyu (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.40, no.4, 2008 , pp. 285-298 More about this Journal
Abstract
This study evaluates the performance of a coil spring-viscous damper system for the vibration and seismic isolation of an Emergency Diesel Generator (EDG) by measuring its operational vibration and seismic responses. The vibration performance of a coil spring-viscous damper system was evaluated by the vibration measurements for an identical EDG set with different base systems - one with an anchor bolt system and the other with a coil spring-viscous damper system. The seismic performance of the coil spring-viscous damper system was evaluated by seismic tests with a scaled model of a base-isolated EDG on a shaking table. The effects of EDG base isolation on the fragility curve and core damage frequency in a nuclear power plant were also investigated through a case study.
Keywords
Emergency Diesel Generator; Coil Spring-Viscous Damper; Vibration Isolation; Seismic Isolation; Seismic Fragility; Core Damage Frequency;
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