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Application of grey relation analysis in fault diagnosis of EHA-VSVP

机译：灰色关联分析在EHA-VSVP故障诊断中的应用

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摘要

According to the increasing safety and reliability requirements of all electric / more electric aircraft, the reliable operation of electro-hydraulic actuator with variable pump and variable motor (EHA-VSVP) is very important. As a complicate mechanical-electro-hydraulic integration system, EHA-VSVP has complex fault features and symptoms; a novel fault diagnosis method based on the grey relation degree is proposed, into which the fault analysis of EHA-VSVP is introduced. In the fault diagnosis experiment of EHA-VSVP engineering sample, practical faults were diagnosed through calculating the grey relation degree between the standard fault set and the pending set. Experimental results prove this method is feasible, simple and efficiency for the fault diagnosis of EHA-VSVP.
机译：根据所有电动/更多电动飞机日益增长的安全性和可靠性要求，具有可变泵和可变电动机（EHA-VSVP）的电动液压执行器的可靠运行非常重要。作为复杂的机电液一体化系统，EHA-VSVP具有复杂的故障特征和症状。提出了一种基于灰色关联度的故障诊断方法，并介绍了EHA-VSVP的故障分析方法。在EHA-VSVP工程样本的故障诊断实验中，通过计算标准故障集与待定故障集之间的灰色关联度，对实际故障进行了诊断。实验结果证明，该方法对EHA-VSVP的故障诊断是可行，简单，有效的。

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