This paper discusses the application of the database technology based on data mining in rotor fault knowledge acquisition , analysizes the various ways to automatically find fault knowledge rules. Refresh the specific design flow of the data mining fault knowledge analysis system and expounds the concrete generate of the diagnostic rules. Then carry out the effective experiment to verify the concrete application effect of this evaluation system.%针对基于数据挖掘的数据库技术在转子故障知识获取中的应用进行探讨，分析故障知识规则自动发现的各种途径。重新梳理了数据挖掘故障知识分析系统的具体设计流程，阐述了诊断规则的具体生成，并开展有效的实验，验证评价系统的具体应用效果。
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