Reliability Analysis of CNC Hydraulic System Based on Fuzzy Fault Tree
Taking account of the fuzziness associated with failure probability of hydraulic systems, a fuzzy fault tree is proposed in the paper by integrating the fuzzy set theory into the conventional fault tree analysis method. The triangular fuzzy numbers are utilized to qualify the fuzzy uncertainty of basic events in the construction of fuzzy fault tree. Moreover, the fuzzy importance measure of each basic event can also be computed. The proposed method is applied to a CNC hydraulic system to demonstrate its effectiveness, and it is able to provide industry practitioners a theoretical basis to facilitate the system reliability assessment, fault diagnosis, as well as maintenance decision.
fuzzy fault tree hydraulic system fuzzy number
Jinhua MI Yanfeng LI Haiqing LI Weiwen PENG Hong-Zhong HUANG
School of Mechatronics Engineering University of Electronic Science and Technology of China Chengdu, China
国际会议
西安
英文
214-218
2011-06-17（万方平台首次上网日期，不代表论文的发表时间）