CAJ | 학술논문

针对国产数控装置硬件平台安全性能不足且缺乏有效定量评估方法的现状，提出基于故障模式影响诊断分析和简化故障树法的数控装置硬件失效评估模型。通过计算装置硬件失效概率及失效原因重要度分析的结果，对影响装置失效的薄弱模块增加冗余、诊断设计。验证改进后的数控装置硬件平台可达到IEC62061标准中SIL2等级要求，在工程上具有很好的应用价值。
침대국산수공장치경건평태안전성능불족차결핍유효정량평고방법적현상，제출기우고장모식영향진단분석화간화고장수법적수공장치경건실효평고모형。통과계산장치경건실효개솔급실효원인중요도분석적결과，대영향장치실효적박약모괴증가용여、진단설계。험증개진후적수공장치경건평태가체도IEC62061표준중SIL2등급요구，재공정상구유흔호적응용개치。
Considering the current situation of the hardware platform of domestic numerical control device has an insufficient safety performance and lack of effective quantitative evaluation method, Coming up with a numerical control device hardware platform failure assessment model based on failure model effect diagnos-tic analysis and simplify fault tree method. After the analysis of computing device hardware failure probabili-ty and the importance of failure cause, redundant and diagnose measures are taken for the weak part which causes the platform failure. Experiments verified that the improved numerical control device hardware plat-form achieved IEC62061 standard and it has a good application value in engineering.