基于FTA与MATLAB的剪切机送料系统可靠性研究
Reliability Analysis of Feeding System of Shearing Machine Based on FTA and MATLAB

送料系统故障发生是影响剪切机正常运行的主要因素，在分析送料系统工作原理的基础上提出基于故障树分析法（fault tree analysis， FTA）对送料系统进行可靠性分析，并运用MATLAB开发出可靠性数据分析平台，对送料系统的试验数据进行处理，精确地计算其可靠度、失效率、平均故障前时间（mean time to failure， MTTF）等可靠性参数。研究结果表明：销轴和传动轴是影响送料系统可靠性最主要零件；高辐照环境是影响送料系统可靠性的最主要因素；可靠性数据分析平台可实现对送料系统可靠性试验数据可视化、自动化和实时化处理。
Vertical shearing machine is one of the key equipments of the Spent Fuel Post Processing, the feeding system has a significant impact on the performance of shearing machine. The reliability analysis method based on fault tree analysis(FTA) and working principle is proposed in this paper. The MATLAB software is adopted to develop a visual platform, which is used to process test data efficiently and calculate the reliability parameters such as reliability, failure rate, mean time to failure(MTTF) accurately. The results show that the pin and driving draft are the vital parts of feeding system and the irradiation environment strongly influences the feeding system. With this reliability data analysis platform, the testing data can be computed and processed visually and automatically in real time