Fuzzy fault tree analysis on safety of robot for wall cleaning
-
摘要: 提出用故障树形图分析法来分析机器人安全性.首先根据机器人设计方案及失效分析建立故障树模型,用故障树分析法对此模型进行定性和定量分析.针对系统底事件和中间事件发生概率情况获取不足的现状,将模糊集理论引入故障树分析法,将底事件(基本事件)发生概率描述为模糊数,通过模糊运算规则估计出整个系统的故障率.Abstract: The fault tree analysis method was introduced to cope with this problem. Failure tree mode was set up based on robot design scheme and failure analysis. The property and quality of failure tree model was analyzed with fault tree analysis method. To solve the problem of insufficient failure rate of root and mid events , fuzzy theory was introduced into the fault tree analysis method. The failure rate of root events was described as fuzzy number. the fuzzy failure rate in the system was calculated according to fuzzy calculation rule.
-
Key words:
- robot /
- safety /
- fault tree analysis /
- fuzzy number
-
[1] Visinky M L ,Cavallaro J R, Walker I D. Robotics fault detection and fault tolerance:a survey[J]. Reliability Engineering and System Safety,1994 ,46(2):139~158 [2]Carreras C, Walker I D. Interval methods for fault-tree analysis in robotics[J]. IEEE Transactions on Reliability,2001,50(1):3~8 [3]Carreras C, Walker I D. Interval methods for improved robot reliability estimation . Proceedings Annual Reliability and Maintainability Symposium . USA,2000.22~27 [4] 张厚祥. 幕墙清洗机器人系统相关研究 . 北京:北京航空航天大学机械工程及自动化学院,2003 Zhang Houxiang. Study on robot systems for wall-cleaning .Beijing:School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, 2003(in Chinese) [5] 徐维新,秦英孝. 可靠性工程[M].第1版.北京:电子工业出版社,1988 Xu Weixin, Qing Yinxiao. Reliability engineering[M]. 1st ed. Beijing:Electronic Industry Press,1998(in Chinese) [6] 武 庄,石 柱,何新贵.基于模糊集合论的故障树分析方法及其应用 .系统工程与电子技术,2000,22(9):72~75 Wu Zhuang, Shi Zhu, He Xingui. A fault tree analysis method based on fuzzy set theory and its application[J]. Systems Engineering and Electronics,2000,22(9):72~75(in Chinese) [7] 王永传,郁文贤,庄钊文.一种故障树模糊重要度分析的新方法[J].国防科技大学学报,1999,21(3):63~66 Wang Yongchuan, Yu Wenxian, Zhuang Zhaowen. A new method of the importance analysis of FTA[J]. Journal of National University of Defense Technology, 1999,21(3):63~66(in Chinese) -
点击查看大图
计量
- 文章访问数: 2692
- HTML全文浏览量: 198
- PDF下载量: 766
- 被引次数: 0
下载:
