The convergence and generalization ability of the genetic and neural network system is improved remarkably and the accuracy and the efficiency of engine diagnosis system are added.

实践证明这种基于遗传神经网络方法的故障诊断系统具有收敛速度快、推广性能强的特点，极大提高了发动机故障诊断系统的效率和准确性。

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Finally, the thesis develops expert system of engine fault diagnosis, and introduces setting-up and maintenance of knowledge base, design of reasoning mechanism and so on in detail.

最后，课题对发动机故障诊断专家系统进行了开发，并详细介绍了知识库的建立和维护、推理机制的设计等。

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The relative correlation distance entropy is applied to fault diagnosis and state recognition of aero engine rotor-case system.

将相对关联距离熵应用于航空发动机转子—机匣系统状态识别和故障诊断。

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