摘要
针对机电控制系统安全风险识别问题,对雷达机电液一体化控制系统进行了研究,对安全风险识别的原理和流程进行了归纳,提出了一种基于PFMEA机电控制系统安全风险识别与改进的方法。结合雷达机电控制系统使用过程,提出了运用PFMEA对过程事件进行归纳和识别安全隐患的方法,对事故发生后果的严重程度和可能性分别作了定义,建立了基于过程分解的PFMEA风险识别模型,提出了分析实施流程;以天线举升运动为例利用PFMEA模型对机电控制系统进行了安全风险分析、识别与改进。研究结果表明:该方法能够快速识别机电控制系统存在的安全风险点,以及从定性和定量的角度去衡量当前机电控制系统所处于的安全水平等级。
Aiming at the safety risk identification problem of electromechanical control system,the radar electro-mechanical and hydraulic integrated control system was studied,the principle and process of safety risk identification were summarized,and put forward a method about electromechanical control system security risk identification and improvement based on PFMEA. Combined with the process of radar electromechanical control system,the method of using PFMEA to summarize and identify the hidden dangers of process events were put forward,the severity and the possibility of accident consequences were defined,a PFMEA risk identification model based on process decomposition was proposed,and its analysis implementation process was presented. Taking the electromechanical control system to complete the antenna lifting movement as an example,the safety risk analysis,identification and improvement work were carried out by using PFMEA model. The results indicate that this method can quickly identify the safety risk points of the electromechanical control system and measure the safety level of the current electromechanical control system from the qualitative and quantitative view.
作者
徐俊
XU Jun(The thirty-eighth Institute of China Electronics Technology Group Corporation, Hefei 230088, Chin)
出处
《机电工程》
CAS
北大核心
2018年第5期512-516,共5页
Journal of Mechanical & Electrical Engineering
关键词
机电控制系统
过程故障模式与影响分析
安全风险
electromechanical control systemI process failure modes and effects analysis（PFMEA）
safety risk
