中国机械工程2017，Vol.28Issue(23)：2785-2791,7.DOI:10.3969/j.issn.1004-132X.2017.23.003
桨-毂轴承材料扭动微动磨损行为研究
Research on Torsional Fretting Wear Behaviors of Material in Hub Bearings
摘要
Abstract
The torsional fretting wear behavior researches of CuNiAl against 42CrMo4 in a con-trollable pitch propeller of dynamic positioning system were carried out on flat-on-flat contact under various angular displacement amplitudes simulating sea waves.The fretting wear appearances were discussed combined with the micro-examinations of the wear scar with scanning electron microscope and ultra-depth three-dimensional microscope,and the rule of torsional fretting wear behavior resear-ches of CuNiAl against 42CrMo4 was investigated.The results indicate that with the increase of the angular displacement amplitudes the fretting running regimes change from partial slip regime to gross slip regime,corresponding to the decrease of the friction coefficients.And the damages of the torsion-al fretting become more and more severe while delamination tend to be the major wear mechanism at the same time.The mixed fretting regime should be avoided on account of the crack propagation which goes against the life time of the hub bearings.关键词
面接触/扭动微动/角位移幅值/摩擦因数/磨损机制Key words
flat-on-flat contact/torsional fretting/angular displacement amplitude/friction coef-ficient/wear mechanism分类
机械制造引用本文复制引用
周明琢,张耕培,卢文龙,张坡,刘晓军,彭和平..桨-毂轴承材料扭动微动磨损行为研究[J].中国机械工程,2017,28(23):2785-2791,7.基金项目
国家重点基础研究发展计划(973计划)资助项目(2014CB046705) （973计划）
国家自然科学基金资助项目(51475190,51575235) （51475190,51575235）
