综合传动全寿命油液污染统计特征研究  

Oil Contaminant Statistical Features within Life-Cycle of Power Shift Steering Transmission

作　　者：刘勇[1,2] 马彪[1] 郑长松[1] 谢商育 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]中北大学机械与动力工程学院,山西太原030051 [3]中国人民解放军驻627厂军代室,湖南湘潭470050

出　　处：《润滑与密封》2015年第7期29-34,共6页Lubrication Engineering

基　　金：科工局传动基金项目(VTDP-3503);‘十二五’预研项目(40402010104)

摘　　要：综合传动全寿命周期油液污染颗粒分布参数与成分参数的统计分析,便于获取统计特征并应用于磨损程度评估与健康状态评价。基于污染平衡理论,采用参数估计处理油液污染度数据,获得其分布参数、平衡污染度与污染限值,并将分布特征应用于综合传动磨损程度评估;采用基于模糊隶属度的稳健核主成分方法分析污染颗粒的成分特征,并将该特征应用于综合传动健康状态的总体与分类评价。通过综合传动装置拆检比对,验证了2种污染统计特征均适用于整体磨损程度评估。研究表明,采用成分特征值可以实现整体健康状态评价与关键摩擦副的分类评价的结合,这不仅有助于综合传动大修期的准确判断,还能给出需维修部件的建议。Statistical analysis of particle distribution and composition in contaminant oil within power shift steering transmission（PSST） is supposed to acquire the statistical features which can be applied for wear assessment and health e- valuationlUnder the theoretical balance of contamination,the contamination level of different samples was analyzed by the parameter estimation methods and solved for the distribution parameters, the balanced and the restricted values.Meanwhile, the wear stages along with operating time of PSST were assessed by the variation of distribution parameters. Besides, the composition features were analyzed by robust kernel principal component analysis （RKPCA）, which was also applied for the overall and classified evaluation on health state of PSST. Through the comparison with the overhaul of PSST, both two features were verified for overall assessment on the wear stages.The research result show that the overall assessment can be combined with the classified evaluation on major parts by introducing the eigenvalues of principle components.As might he expected, the overhaul life of the PSST system can be judged accurately by the proposed method, and the maintaining sug- gestion of the damaged parts can be also provided.

关 键 词：统计特征 光谱 污染度 综合传动 磨损阶段 

分 类 号：U463.12[机械工程—车辆工程] TH137.13[交通运输工程—载运工具运用工程]