Multi-fault coupling analysis and decoupling approach for diesel engine lubrication system

被引：0

作者：

Wang J. ^{[1
,2
]}

Wang Z. ^{[2
]}

Ma X. ^{[2
]}

Zhang C. ^{[2
]}

机构：

[1] School of Safety Engineering, China University of Mining and Technology, Xuzhou

[2] College of Power and Energy, Harbin Engineering University, Harbin

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2021年 / 42卷 / 06期

关键词：

Bond graph; Diesel engine; Fault diagnosis; Feature reduction; Lubrication system; Multiple faults decoupling; Set theory; Temporal causal graph;

D O I：

10.11990/jheu.201910075

中图分类号：

学科分类号：

摘要：

Due to the strong coupling relationships among multiple faults of diesel engine lubrication system, it is considerably difficult to identify the root of fault. To solve this problem, this paper proposes a multi-fault relevance analysis and decoupling approach for diesel engine lubrication system. First, the dynamics model of the diesel engine lubrication system is established based on bond graph, and it is further transferred into temporal causal graph model. In this model, the response characteristics of thermal parameters of diesel engine's lubrication system under different faults can be determined accordingly, and the coupling relation of multiple faults on abnormal symptoms is obtained. On this basis, the set theory is introduced into the decoupling research of multiple faults of diesel engine's lubrication system. By analyzing the faults partition action of abnormal symptoms, the correlative features of multiple faults are eliminated. The coupling degree of multiple faults decreases using the proposed approach, providing a basis for the isolation of multiple faults of an engine lubrication system. The approach is verified using a classical GT-Power model of a diesel engine lubrication system. Copyright ©2021 Journal of Harbin Engineering University.

引用

页码：825 / 832

页数：7

共 18 条

[1]

WANG Yingmin, CUI Tao, ZHANG Fujun, Et al., Fault diagnosis of diesel engine lubrication system based on PSO-SVM and centroid location algorithm, Proceedings of the 5th International Conference on Control, Automation and Information Sciences, pp. 221-226, (2016)

[2]

Japan P, Club I, Thinking prevention of engine trouble

[3]

Main engine damage

[4]

ZHAO Yan, Failure analysis and prevention of a certain type diesel engine cylinder liner, Internal combustion engines, 6, pp. 60-62, (2015)

[5]

REN Rongshe, WANG Xiumin, LING Hua, Reasons analysis of 12VE230ZC diesel engine cylinder scoring and its removal, Internal combustion engines, 1, pp. 61-62, (2009)

[6]

WANG Xiumin, ZHENG Fabin, DING Zhilong, Et al., Cause analysis and preventive measures for the fault of 6250ZCD diesel engine bearing pad burnt-out, Diesel engine, 30, 2, pp. 53-54, (2008)

[7]

NAHIM H M, YOUNES R, SHRAIM H, Et al., Modeling with fault integration of the cooling and the lubricating systems in marine diesel engine: experimental validation, IFAC-PapersOnLine, 49, 11, pp. 570-575, (2016)

[8]

ROSTEK E, BABIAK M, WROBLEWSKI E., The influence of oil pressure in the engine lubrication system on friction losses, Procedia engineering, 192, pp. 771-776, (2017)

[9]

CHONG Daochen, Intelligent fault diagnosis of diesel engine lubrication system based on PSO-SVM, (2016)

[10]

WANG Huanhuan, Early fault diagnosis of diesel engine based on acoustic emission, (2017)

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