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

[11]

WANG Guobiao, HE Zhengjia, CHEN Xuefeng, Et al., Basic research on machinery fault diagnosis—what is the prescription, Journal of mechanical engineering, 49, 1, pp. 63-72, (2013)

[12]

BORUTZKY W., Bond graph modelling and simulation of multidisciplinary systems-An introduction, Simulation modelling practice and theory, 17, 1, pp. 3-21, (2009)

[13]

Editorial Board of Diesel Engine Design Manual. Diesel engine design manual, (1984)

[14]

MOSTERMAN P J., Hybrid dynamic systems: a hybrid bond graph modeling paradigm and its application in diagnosis, (1997)

[15]

MOSTERMAN P J, BISWAS G., Diagnosis of continuous valued systems in transient operating regions, IEEE transactions on systems, man, and cybernetics-part A: systems and humans, 29, 6, pp. 554-565, (1999)

[16]

PAWLAK Z., Information systems theoretical foundations, Information systems, 6, 3, pp. 205-218, (1981)

[17]

SKOWRON A, RAUSZER C., The discernibility matrices and functions in information systems, Intelligent Decision Support: Handbook of Applications and Advances of the Rough Sets Theory, pp. 331-362, (1992)

[18]

KONECNY J., On attribute reduction in concept lattices: methods based on discernibility matrix are outperformed by basic clarification and reduction, Information sciences, 415-416, pp. 199-212, (2017)

← 1 2 →