CAJ | 학술논문

基于核动力主泵运行环境和性能退化机理，考虑自身振动和外部冲击对其性能退化的影响，建立了主泵冲击与退化相依竞争失效过程的可靠度模型。采用该模型计算了考虑性能退化的主泵在振动和外部冲击条件下的退化状态概率和可靠度，为基于使用环境的核动力主泵的多状态可靠性分析提供了一种有效的分析途径。分析结果可为设计变更和维修优化提供决策依据。
기우핵동력주빙운행배경화성능퇴화궤리，고필자신진동화외부충격대기성능퇴화적영향，건립료주빙충격여퇴화상의경쟁실효과정적가고도모형。채용해모형계산료고필성능퇴화적주빙재진동화외부충격조건하적퇴화상태개솔화가고도，위기우사용배경적핵동력주빙적다상태가고성분석제공료일충유효적분석도경。분석결과가위설계변경화유수우화제공결책의거。
By taking into account the effect of degradation due to internal vibration and external shocks , and based on service environment and degradation mechanism of nuclear power plant coolant pump ,a multi-state reliability model of coolant pump was proposed for the system that involves competitive failure process between shocks and degradation .Using this model ,degradation state probability and system reliability were obtained under the consideration of internal vibration and external shocks for the degraded coolant pump .It provided an effective method to reliability analysis for coolant pump in nuclear power plant based on operating environment .The results can provide a decision making basis for design changing and maintenance optimization .