关键词: 竞争威布尔模型, 加工中心, 可靠性, 故障信息序列, 模糊聚类, 自助法

Abstract: To realize the classification of failure data according to different fault mechanism,the competing Weibull model was used to evaluate the reliability of machining tool center.The failure was represented by the failure information sequence through the definition of failure characteristic attribute and failure information sequence,and the fuzzy clustering algorithm was used to classify the collections of failure information sequences.Bootstrap and improved Bootstrap based on grey prediction were used to get the parameter estimation of Weibull model.An example was given to verify the availability of proposed method.

Key words: competing Weibull model, machining tool center, reliability, failure information sequence, fuzzy clustering, bootstrap