Hydraulic Fault Diagnosis Expert System of Excavator Based on Fault Tree

被引：3
|
作者：
Li, Guoping [1 ]
Zhang, Qingwei [1 ]
机构：
[1] Univ Jinan, Sch Mech Engn, Jinan 250022, Shandong, Peoples R China
来源：
MACHINERY, MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1 AND 2 | 2011年 / 228-229卷
关键词：
Hydraulic excavator; Expert system; Fault tree; Knowledge base design;
D O I：
10.4028/www.scientific.net/AMR.226-228.439
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The constituting of diagnosis expert system and the basic theory of fault tree analysis were introduced at first. A model of combining fault tree with expert system was analyzed. It focused on the hydraulic excavator PC220-7 for Komatsu according to the hydraulic system breakdown of law and order was particularity. A method combined the fault tree analysis with an expert system based rules was adopted. It was expressed systematically expert knowledge by building a fault tree. According to the fault tree, a database of diagnostic rule can be automatically generated. Automatic diagnosis knowledge acquisition has become reality. A hydraulic system fault of excavator was given as an example to design an expert system with the function of complex reasoning and explanation. It provides a reference for hydraulic excavator of the use of management and fault maintenance personnel to solve excavator problems. It shows that this method has a good application in the future.
引用
收藏
页码：439 / 446
页数：8
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