不同方法评定核压力容器用A508CL3钢动态断裂韧性的比较

采用示被冲击试验及预制疲劳裂纹Ｃｈａｒｐｙ试样，通过几种不同的单试样试验方法对核压力容器用Ａ５０８ＣＬ３钢的动态断裂韧性进行了评定，比较了各种方法的优缺点。研究载荷能量法过高地评定了材料的动态裂韧性值；而柔度变化度法的评定值则过低，断口延伸带宽度测试法的评定结果具有较大误差，且试验过程复杂，成本较高；能量修正法是一种方便而精确的评定核压力容器钢动态断韧性的单试样方法。     

Intelligent system for transient data collection and fatigue monitoring of pressurised water reactors nuclear steam supply system

Electricité de France (EDF), the French national electricity company, is operating 54 standardised pressurised water reactors. This about 500 reactor-years experience in nuclear stations operation and maintenance area has allowed EDF to develop its own strategy for monitoring of age-related degradations of NPP systems and components relevant for plant safety and reliability. After more than fifteen years of experience in regulatory transient data collection and seven years of successful fatigue monitoring prototypes experimentation, EDF decided to design a new system called SYSFAC (acronym for SYstème de Surveillance en FAtigue de la Chaudière) devoted to transient logging and thermal fatigue monitoring of the reactor coolant pressure boundary. The system is fully automatic and directly connected to the on-site data acquisition network without any complementary instrumentation. A functional transient detection module and a mechanical transient detection module are in charge of the general transient data collection. A fatigue monitoring module is aimed towards a precise surveillance of five specific zones particularly sensible to thermal fatigue. After a first step of preliminary studies, the industrial phase of the SYSFAC project is currently going on, with hardware and software tests and implementation. The first SYSFAC system will be delivered to the pilot power plant by the beginning of 1996. The extension to all EDF’s nuclear 900 MW is planned after one more year of feedback experience.     

Windows环境下数据采集程序设计

介绍了在Windows环境下数据采集程序设计的几种实现方法,分析了几种方法的优缺点．并指出了每种方法所适用的数据采集方式,方便核数据采集系统的开发人员实现数据采集程序的设计。