复杂工况下的直升机行星传动轮系故障诊断  

Fault diagnosis of helicopter planetary gear transmission system under complex operating conditions

作　　者：孙灿飞 黄林然 沈勇 SUN Canfei;HUANG Linran;SHEN Yong(Research Center,AVIC Shanghai Aero Measurement Controlling Research Institute,Shanghai 201601,China;Testing and Verification Center,Aviation Key Laboratory of Science and Technology on Fault Diagnosis and Health Management,Shanghai 201601,China)

机构地区：[1]航空工业上海航空测控技术研究所研究中心,上海201601 [2]故障诊断与健康管理技术航空科技重点实验室试验与验证中心,上海201601

出　　处：《航空学报》2022年第8期103-111,共9页Acta Aeronautica et Astronautica Sinica

基　　金：航空科学基金(20183352031)。

摘　　要：行星传动轮系是直升机动力传动系统的核心部件,是直升机健康和使用监测系统重要的监测对象。针对复杂工况下直升机行星传动轮系的故障诊断难题,提出了结合域对抗与深度编码网络的自适应域对抗深度迁移故障诊断方法。方法输入归一化频谱数据,基于堆栈收缩自动编码网络建立训练负载与测试负载编码网络,从训练域数据进行有监督学习提取高质量深度故障特征,并结合参数迁移和对抗学习策略,通过测试域数据无监督自适应优化测试域深度故障特征提取网络,以适应负载条件变化引起的样本数据分布差异以及恶劣噪声环境引起的样本数据波动的影响。方法在直升机行星传动轮系实验平台上通过故障注入试验进行了对比验证,证明了方法的有效性与健壮性。The planetary transmission system as the core component of the helicopter power transmission system is an important monitoring object for the helicopter health and use monitoring system.In view of the problem of fault diagnosis of the helicopter planetary transmission wheel system under complex working conditions,a method for fault diagnosis of the adaptive domain against deep migration combined with domain adversity and deep coding networks is proposed.Inputting normalized spectrum data and establishing a training load and test load coding network based on the stack shrink automatic encoding network,this method extracts high-quality in-depth fault characteristics from the training domain data with supervised learning,and the network from the test domain data by unsupervised self-adaptively optimized test domain in-depth fault characteristics combining parameter migration and the anti-learning strategy to adapt to the differences in sample data distribution caused by changes in load conditions and the impact of sample data fluctuations caused by harsh noisy environments.The validity and robustness of the method are verified by comparison analysis through fault injection tests on the experimental platform of the helicopter planetary transmission wheel system.

关 键 词：直升机 行星齿轮 变工况 故障诊断 深度学习 域对抗迁移 

分 类 号：V240[航空宇航科学与技术—飞行器设计]