反应堆控制棒驱动机构任务可靠性建模与分析  

Reliability modeling method of control rod driving mechanism

作　　者：李维 邓强[1] 鲁文斌 唐明堂 吴泽豫 孙博[2] 王自力[2] 任羿[2] Li Wei;Deng Qiang;Lu Wenbin;Tang Mingtang;Wu Zeyu;Sun Bo;Wang Zili;Ren Yi(The Laboratory of Science and Technology on Reactor System Design Technology,Nuclear Power Institute of China, Sichuan Chengdu, 610041, China;School of Reliability and Systems Engineering, Beijing University ofAeronautics and Astronautics, 100191, China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,四川成都610041 [2]北京航空航天大学可靠性与系统工程学院,北京100191

出　　处：《机械设计与制造工程》2021年第2期35-39,共5页Machine Design and Manufacturing Engineering

摘　　要：为了对核电厂压水型核反应堆控制棒驱动机构的可靠性随其升降运行步数变化的规律进行分析及预测,提出一种基于动态Bayes网络的系统可靠性建模与分析方法。首先通过建立动态Bayes网络模型对驱动机构不同功能单元的状态随运行步骤发生循环变化的特点进行描述,进而基于所建立的模型对系统整体任务可靠性进行了分析,最后结合案例对提出的方法进行了验证。结果表明,建立的模型能够为控制棒驱动机构产品的可靠性设计分析工作提供参考。In order to analyze and prognosticate the reliability of the control rod drive mechanism(CRDM)of a pressurized water reactor(PWR)with the change of its lifting operation steps,a system reliability modeling and analysis method based on dynamic Bayes networks are proposed.First,through the establishment of a dynamic Bayes network model,the characteristics of the cyclical changes in the states of the different functional units of the drive mechanism within the operation are described.Then the system's overall mission reliability is analyzed based on the established model,and finally the proposed method is verified with a case.The results show that the established model can provide a reference for the reliability design and analysis of the CRDM.

关 键 词：控制棒驱动机构 可靠性建模 动态Bayes网络 

分 类 号：TL351[核科学技术—核技术及应用]