摘要
针对焊接机故障现象、故障原因等存在大量不确定性导致诊断效率低、诊断难度大的问题,将模糊故障树分析法应用于焊接机故障诊断中,在分析焊接机结构模型和基于T-S模型的模糊故障树分析法的基础上,以焊接机焊枪姿态和悬浮高度设置为例,建立了T-S模型模糊故障树,并进行了可靠性分析。计算结果表明,该方法克服了传统故障树分析法的缺点,不需要精确了解故障机理就能找到系统的薄弱环节。
According to the less effectiveness and difficulty in fault diagnosis of welding robots for its lots of uncertain faults phenomena and faults causes, this paper proposes the Fuzzy Fault Tree Analysis apply to welding robots fault diagnosis. Based on the analysis of welding machine structure and the T-S fuzzy fault tree analysis method, taking the torch＇ s gesture and suspension height setting of welding machine as an example, the fuzzy fault tree based on T-S model is established, and the reliability analysis for welding robots is discussed. The result shows that this method can find the weak link of the system without understanding the failure mechanism accurately, and can overcome the shortcomings of traditional fault tree analysis.
出处
《机械强度》
CAS
CSCD
北大核心
2017年第3期592-597,共6页
Journal of Mechanical Strength
基金
河南省科技攻关项目(172102210520)
河南省高等学校重点科研项目(17A413015
16A460026)资助。~~
