汽车起重机液压系统故障诊断专家系统设计

发布时间：2018-02-14 20:27

本文关键词： 汽车起重机液压系统故障诊断专家系统故障树　出处：《广西大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着经济的迅猛发展,国内外工程机械都在不断地进步,汽车起重机作为工程机械的一部分,也为它带来了良好的发展机遇。汽车起重机中的液压系统是其关键部分之一。面对复杂多样的液压系统故障,怎么样准确、高效的排除故障是使用者和企业特别关心的问题。这就意味着汽车起重机液压系统故障诊断专家系统的研究与设计有着十分重要的意义。本文主要完成了以下方面工作： (1)统计了汽车起重机各类液压系统故障,针对故障运用液压系统原理分析,并收集了相应的诊断建议与故障排除措施,为故障诊断专家系统的知识库建立提供了数据基础。 (2)针对汽车起重机液压系统伸缩机构,构建了知识库及相应的推理模型。 (3)综合故障树理论和专家系统理论,应用Visual Basic和Microsoft Access软件初步设计了专家系统。通过此系统使用者可以查询起重机的基本信息、诊断实时发生的故障和更新知识库内的故障信息,也为液压系统的设计提供一定的依据。
[Abstract]:With the rapid development of economy, the construction machinery at home and abroad are making continuous progress, the truck crane as a part of the construction machinery, The hydraulic system in the truck crane is one of its key parts. In the face of complex and diverse hydraulic system failure, how to be accurate, Efficient troubleshooting is of great concern to users and enterprises, which means that the research and design of fault diagnosis expert system for truck crane hydraulic system is of great significance. The main work of this paper is as follows:. This paper makes statistics on various kinds of hydraulic system faults of truck crane, analyzes the principle of hydraulic system in view of the faults, and collects the corresponding diagnosis suggestions and troubleshooting measures, which provides the data basis for the establishment of the knowledge base of the fault diagnosis expert system. Secondly, the knowledge base and the corresponding reasoning model are constructed for the telescopic mechanism of hydraulic system of truck crane. 3) synthesizing the theory of fault tree and expert system, using Visual Basic and Microsoft Access software, the expert system is designed preliminarily. The users of this system can query the basic information of crane. Diagnosis of real-time faults and updating of fault information in the knowledge base also provide some basis for the design of hydraulic system.
【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH213.6;TP277

【参考文献】