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将数学建模和可视化技术相互融合,将飞机部件间的逻辑关系量化并通过可视化的方式表达,建立基于特定机型的飞机故障推理系统,对飞机维修排故前期具有一定指导意义。首先介绍了Petri网的相关理论,着重阐述了模糊Petri网理论及其应用领域,提出把模糊Petri网理论应用于故障推理系统;在模糊Petri网理论的基础上实现基于模糊Petri网可视化建模飞机故障推理系统,实现在人机交互界面的模糊Petri网的可视化建模,并采用矩阵推理算法对建立的模糊Petri网模型进行故障推理。最后以飞机维修故障实例对该系统进行验证。
Combining mathematical modeling and visualization technology to quantify the logical relationship between aircraft components and express them visually, the aircraft fault reasoning system based on a specific model is established, which is of guiding significance to the early stage of aircraft maintenance and troubleshooting. Firstly, the related theories of Petri nets are introduced, and the theory of fuzzy Petri nets and its application fields are emphatically expounded. The theory of fuzzy Petri nets is proposed to apply to fault reasoning systems. Based on the theory of fuzzy Petri nets, Fault reasoning system to realize the visual modeling of the fuzzy Petri net in the human-computer interaction interface, and use the matrix reasoning algorithm to make fault reasoning to the established fuzzy Petri net model. Finally, the system is validated by the example of aircraft maintenance failure.