CAJ | 학술논문

故障分析是实现加工中心可靠性水平增长的重要环节，因此提高故障分析的准确性至关重要。鉴于此，本文首先充分考虑加工中心故障子系统间影响关系，基于 ISM 法构建递阶结构模型，使得关联故障子系统间复杂影响关系层次化，以求得深层故障子系统，确定可靠性改进薄弱环节。其次对所得薄弱环节进行 FMECA 分析，进而确定关键故障模式，为提高加工中心可靠性奠定基础。最后以某系列加工中心现场故障数据为研究对象进行实例研究，证明了 ISM 和 FMECA 法在加工中心故障分析中的准确有效性。
고장분석시실현가공중심가고성수평증장적중요배절，인차제고고장분석적준학성지관중요。감우차，본문수선충분고필가공중심고장자계통간영향관계，기우 ISM 법구건체계결구모형，사득관련고장자계통간복잡영향관계층차화，이구득심층고장자계통，학정가고성개진박약배절。기차대소득박약배절진행 FMECA 분석，진이학정관건고장모식，위제고가공중심가고성전정기출。최후이모계렬가공중심현장고장수거위연구대상진행실례연구，증명료 ISM 화 FMECA 법재가공중심고장분석중적준학유효성。
Failure analysis is an important part of realizing the growth of machining center reliability level,so it is important to improve the accuracy of failure analysis.In view of this,this paper first consid-ered the relationship and influence among failure subsystem elements of machining center,constructed the hierarchical structure model based on ISM method,made clear the class of interrelated failure subsystem, found out the deep failure subsystem elements and determined the weak link in the reliability improve-ment.Secondly,it analyzed the subsystem with FMECA,and determined the critical failure modes of the subsystem and laid a foundation for improving the reliability of machining center.Finally,it did the case study based on the field failure data of a series of machining center.The result has proved that the above method is accurate and effective in the failure analysis of machining center.