文章基本信息

标题：A reliability-based preventive maintenance methodology for the projection spot welding machine
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作者：Fayzimatov Ulugbek ; Sheng Buyun ; Xiao Zheng 等
期刊名称：Management Science Letters
印刷版ISSN：1923-9335
电子版ISSN：1923-9343
出版年度：2018
卷号：8
期号：6
页码：497-506
DOI：10.5267/j.msl.2018.5.005
出版社：Growing Science
摘要：An effective operations of a projection spot welding (PSW) machine is closely related to the effectiveness of the maintenance. Timely maintenance can prevent failures and improve reliability and maintainability of the machine. Therefore, establishing the maintenance frequency for the welding machine is one of the most important tasks for plant engineers. In this regard, reliability analysis of the welding machine can be used to establish preventive maintenance intervals (PMI) and to identify the critical parts of the system. In this reliability and maintainability study, analysis of the PSW machine was carried out. The failure and repair data for analysis were obtained from automobile manufacturing company located in Uzbekistan. The machine was divided into three main sub-systems: electrical, pneumatic and hydraulic. Different distributions functions for all subsystems was tested and their parameters tabulated. Based on estimated parameters of the analyzed distributions, PMI for the PSW machines sub-systems at different reliability levels was calculated. Finally, preventive measures for enhancing the reliability of the PSW machine sub-systems are suggested.
关键词：Projection spot welding machine;;Reliability;Maintainability;Preventive maintenance