摘要
为了减少沉降离心机的运行故障,确保运行寿命满足设计要求,文章开展沉降离心机滚动轴承磨损可靠性分析及优化设计研究。文章基于表面疲劳磨损理论建立轴承磨损可靠性分析模型,通过模型的灵敏度分析确定表面粗糙度Ra和摩擦系数f是实际磨损量的两大敏感因素。针对敏感因素进行模型的确定性分析及可靠性分析,并进行可靠性优化设计。最终优化结果:表面粗糙度Ra=2.39,摩擦系数f=0.0965,轴承实际磨损量有效减少,敏感参数均满足6 Sigma水平的可靠性要求,且轴承寿命得到有效延长。
In order to reduce the operational failure of the centrifugal clarifier and ensure that the operating life meets the design requirements, this article conducts the reliability analysis and optimization design research of rolling bearing of the centrifugal clarifier. The bearing reliability analysis model is established based on the surface fatigue wear theory. Through the sensitivity analysis of the model, it is determined that the surface roughness(Ra) and the friction coefficient(f) are two sensitive factors of the actual wear. The deterministic analysis and reliability analysis of the model are carried out for sensitive factors, and the reliability optimization design is carried out. The optimization results show that the surface roughness:Ra=2.39, friction coefficient:f=0.0965, the actual wear of the bearing is effectively reduced, the sensitive parameters meet the reliability requirements of the 6 Sigma level, and the bearing life is effectively extended.
作者
段宏
李光俊
郭和一
郭明超
徐磊
DUAN Hong;LI Guang-jun;GUO He-yi;GUO Ming-chao;XU Lei(China Nuclear Power Engineering Co.,Ltd.,Beijing Nuclear Chemical Research and Design Institute,Beijing 100084,China)
出处
《组合机床与自动化加工技术》
北大核心
2020年第4期88-90,94,共4页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
轴承磨损
可靠性分析
优化设计
bearing wear
reliability analysis
optimization design
作者简介
段宏(1972-),女,湖北黄陂人,中国核电工程有限公司研究员级高级工程师,硕士,研究方向为核能与核技术研究,(E-mail)duanhong@cnpe.cc;通讯作者:李光俊(1988-),男,云南大理人,中国核电工程有限公司工程师,硕士,研究方向为乏燃料后处理相关设备的设计研究,(E-mail)644963393@qq.com。
