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基于多尺度排列熵的复合行星齿轮故障诊断研究 被引量:16

Research on Fault Diagnosis of Compound Planetary Gear Based on Dynamic Model and Multiscale Permutation Entropy
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摘要 针对行星齿轮传动系统复合故障特征提取问题,以行星齿轮箱的运行状态为研究背景,建立了考虑路面随机激励下的行星齿轮箱复合故障动力学模型,利用多尺度排列熵对齿轮箱正常、断齿故障和复合故障时的振动信号进行了对比分析,通过对处于不同状态的行星齿轮箱进行分析,发现行星齿轮箱正常振动信号的多尺度排列熵值要高于单一断齿和复合断齿故障信号,熵值平均高出约5.3%,单一断齿的多尺度排列熵高于复合断齿故障信号,熵值平均高出约7.4%。研究结果证明,多尺度排列熵可以有效地诊断多排行星齿轮系统的故障类型。 Aiming at the problem of extracting the composite fault features of planetary gear transmission system,this paper establishes a composite fault dynamic model of planetary gear box considering random road excitation based on the actual running state of an armored vehicle planetary gear box,compares and analyzes the vibration signals of normal,broken tooth fault and composite fault of the gear box by using multi-scale permutation entropy,and finds that the multi-scale permutation entropy of normal vibration signals of planetary gear box is higher than that of single broken tooth and composite broken tooth fault signals,with an average entropy value of about 5.3%higher than that of single broken tooth and composite broken tooth fault signals,with an average entropy value higher than that of composite broken tooth fault signals.The research results show that multi-scale permutation entropy can effectively diagnose the fault types of multi-row star gear system.
作者 武哲 张强 黄华蒙 成立峰 WU Zhe;ZHANG Qiang;HUANG Hua-meng;CHENG Li-feng(School of Mechanical Engineering,Hebei University of Science and Technology,Hebei Shijiazhuang 050018,China;Key Laboratory of Vehicle Transmission,China North Vehicle Research Institute,Beijing 100072,China)
出处 《机械设计与制造》 北大核心 2020年第9期182-186,共5页 Machinery Design & Manufacture
基金 国家自然科学基金资助项目(51705130) 河北省自然科学基金青年基金项目(E2020208052) 河北省省级科技计划资助(20310803D) 河北省高等学校科学技术研究青年基金项目(QN2018168)。
关键词 行星齿轮箱 动力学模型 多尺度排列熵 故障诊断 Planetary Gears Dynamic Model Multiscale Permutation Entropy Fault Diagnosis
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