基于功能危险分析的数控机床主传动系统故障树分析  

Fault tree analysis of main drive system in CNC machine tool based on functional hazard analysis

作　　者：杨合立[1] 张鹏[1] 祝红林[1] 安宗文[1] 

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730050

出　　处：《兰州理工大学学报》2011年第3期34-37,共4页Journal of Lanzhou University of Technology

基　　金："甘肃省高等学校基本科研业务费专项基金(GCJ2009019)";"兰州理工大学科研基金(BS02200903)"资助

摘　　要：针对数控机床主传动系统故障树分析中顶事件选择片面的问题,指出进行功能危险分析为顶事件的选择提供技术和理论依据,即以功能危险分析的输出作为故障树分析的输入建立故障树.采用上行法对故障树求最小割集并进行分析,确定出系统的薄弱环节,验证了应用功能危险分析技术确定故障树顶事件的有效性.Aimed at the problem of one-sided choice of top event for fault tree analysis（FTA） of main drive system in NC machine tool,it was pointed out that the functional hazard analysis（FHA） would provide a technical and theoretical basis for top event choice,viz the fault tree would be established so that the input for its analysis should be the output of FHA.The minimum cut sets was then found and analyzed with up-going method.The system＇s weak links were determined,verifying the effectiveness of determination of fault tree top event with FHA technique.

关 键 词：数控机床 传动系统 功能危险分析(FHA) 故障树分析(FTA) 

分 类 号：TG502.7[金属学及工艺—金属切削加工及机床]