流向图在行星齿轮箱故障诊断中的应用

中国机械工程

流向图在行星齿轮箱故障诊断中的应用

于军1，2;于德水1

1.哈尔滨理工大学自动化学院，哈尔滨，150080
2.哈尔滨工业大学机电学院，哈尔滨，150001

出版日期:2018-05-25 发布日期:2018-05-25
基金资助:
国家自然科学基金资助项目（61673142，51275136）
National Natural Science Foundation of China（No. 61673142，51275136）

Applications of Flow Graph to Fault Diagnosis of Planetary Gearboxes

YU Jun1，2;YU Deshui1

1.School of Automation， Harbin University of Science and Technology， Harbin， 150080
2.School of Mechanical and Electrical Engineering， Harbin Institute of Technology， Harbin,150001

Online:2018-05-25 Published:2018-05-25
Supported by:
National Natural Science Foundation of China（No. 61673142，51275136）

摘要/Abstract

摘要： 针对行星齿轮箱诊断过程复杂和诊断结果准确率低的问题，提出了一种基于流向图的行星齿轮箱故障诊断方法。该方法通过流向图构建算法直观地表示行星齿轮箱的故障诊断知识，利用流向图约简算法删除不必要的征兆属性节点，以简洁的形式表示属性之间的因果关系，利用流向图分类决策算法确定待诊实例的故障类型。仿真和实验结果证明了该方法的准确性和直观性，为行星齿轮箱的故障诊断提供了一种新颖的解决思路。

关键词: 流向图, 行星齿轮箱, 故障诊断, 约简, 分类决策

Abstract: Aimed at the problems of complex diagnosis processes of planetary gearboxes and low accuracy of diagnosis results， a fault diagnosis method of planetary gearboxes was proposed based on flow graph.In this method， a construction algorithm of flow graph was utilized to intuitively represent the fault diagnosis knowledges of planetary gearboxes.Then， a reduction algorithm of flow graph was applied to removing unnecessary condition attribute nodes.The consequent relationship among attributes was represented in the simplest manner.Finally， a classification decision algorithm of flow graph was employed to determine fault types of test samples.The simulation and experimental results confirm the accuracy and intuitiveness of this method， which provide a novel way for fault diagnosis of planetary gearboxes.

Key words: flow graph, planetary gearbox, fault diagnosis, reduction, classification decision

中图分类号:

TH17

于军1，2;于德水1. 流向图在行星齿轮箱故障诊断中的应用[J]. 中国机械工程.

YU Jun1，2;YU Deshui1. Applications of Flow Graph to Fault Diagnosis of Planetary Gearboxes[J]. China Mechanical Engineering.

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