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以模糊Ｈ 网模型结合面向对象方法，提出一种新型的符号与数值融合型模糊推理专家系统，给出该专家系统的知识表示、知识存储、推理机制与策略。该系统使数值分类算法（如神经网络、模式识别）与符号推理无本质区别，被统一处理。以ＪＣＳ－ ０２０（ＦＡＮＵＣ）加工中心为对象建立了柔性加工设备故障诊断专家系统，以其进给轴驱动电机为例，说明该专家系统的可行性与有效性
This paper proposes a new type of fuzzy inference expert system based on fuzzy H network model and object - oriented method, and gives the expert system knowledge representation, knowledge storage, reasoning mechanism and strategy. The system makes the numerical classification algorithm (such as neural network, pattern recognition) and symbolic reasoning no essential difference, unified processing. The fault diagnosis expert system of flexible processing equipment is established for the JCS-020 (FANUC) machining center. Taking the feed-axis drive motor as an example, the feasibility and effectiveness of the expert system