【作者】 刘贞谷； 姜露； 庾明达； 李丽娟； 田俊； 张丽屏； 张毅雄；

【Author】 LIU Zhen-yu;JIANG Lu;YU Ming-da;LI Li-juan;TIAN Jun;ZHANG Li-ping;ZHANG Yi-xiong;National Key Laboratory of Science and Technology on Reactor System Design Technology;Nuclear Power Institute of China;

【机构】 核反应堆系统设计技术重点实验室； 中国核动力研究设计院；

【摘要】 本文将各输入参数的随机性概念引入到核设备的设计中,开展基于概率论的可靠性分析设计,考虑了参数的随机波动及不确定性,计算结构的可靠度以及结构对设计参数的敏感性,从而为结构设计提供更多的反馈信息和指导意见。本文对常用的几种应力强度可靠性分析技术进行了研究,分析了各自的优缺点,以压力容器堆芯段筒体为例,采用解析法、Ansys、OPTIMUS对其可靠度进行了计算,验证了可靠性分析方法及技术在核级设备分析评价的可行性。更多还原

【Abstract】 In this paper,the randomness concept of each input parameter is introduced into the design of nuclear equipment,and the reliability analysis design based on probability theory is carried out.The stochastic fluctuation and uncertainty of parameters are considered,as well as the reliability of the calculated structure and the sensitivity of the structure to the design parameters.In addition,the calculation can provide more feedback and guidance for structural design.In this paper,several commonly used stress intensity reliability analysis techniques are studied,and their advantages and disadvantages are analyzed.Taking the pressure vessel core section cylinder as an example,the reliability is calculated by analytical method,Ansys and OPTIMUS.The feasibility of the reliability analysis method and technology in the analysis and evaluation of nuclear equipment is verified.更多还原