控制系统有关安全部件性能评估研究及应用
Study and Application for Performance Evaluation of SRP/CS
DOI: 10.12677/DSC.2016.53009,
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作者:
王会永, 李向男, 包大勇, 邢 力, 郑海鹏, 王 彬：山东检验检疫局检验检疫技术中心，山东 青岛；刘晓东：上海检验检疫局机电产品检测技术中心，上海
关键词:
控制系统有关安全部件；性能等级；评估；应用；SRP/CS； Performance Level； Evaluation； Application
摘要:
本文阐述了SRP/CS性能评估流程，确定了采用基于危险的方法确定SRP/CS要求的安全性能等级(PLr)，介绍了SRP/CS控制回路的类别、平均危险失效时间(MTTFd)、平均危险失效的诊断覆盖率(DCavg)及共因失效(CCF)四个参数的确定方法，并对数控车床可移动式防护门控制系统进行了性能评估。
Abstract:
Process of performance evaluation of safety-related part of a control system (SRP/CS) was reported. Required performance level (PLr) of SRP/CS was determined by hazard based approach. Determined methods for category of SRP/CS, MTTFd, DCavg and CCF were reported. Performance evaluation was taken for control system of movable guard of CNC lathe.