Adaptive staged remaining useful life prediction method based on multi-sensor and multi-feature fusion

被引:35
|
作者
Ta, Yuntian [1 ]
Li, Yanfeng [1 ]
Cai, Wenan [2 ]
Zhang, Qianqian [3 ]
Wang, Zhijian [1 ,4 ,5 ]
Dong, Lei [1 ]
Du, Wenhua [1 ]
机构
[1] North Univ China, Sch Mech Engn, Taiyuan 030051, Shanxi, Peoples R China
[2] JinZhong Univ, Sch Mech Engn, Jinzhong 030619, Shanxi, Peoples R China
[3] Shanxi Univ, Sch Automat & Software, Taiyuan 030006, Shanxi, Peoples R China
[4] Xi An Jiao Tong Univ, Key Lab, Educ Minist Modern Design & Rotor Bearing Syst, Xian 710049, Shaanxi, Peoples R China
[5] North Univ China, Taiyuan, Peoples R China
基金
中国国家自然科学基金;
关键词
Remaining useful life prediction; Adaptive staged prediction; Multi-sensor and multi-feature fusion; Parameters estimation; PROGNOSTICS;
D O I
10.1016/j.ress.2022.109033
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The single sensor is difficult to acquire the complete degradation information of the component, and the degradation model cannot adaptively track the staged degradation process (DP) of the component, which lead to a decrease in the accuracy of the remaining useful life (RUL) prediction methods. Therefore, this paper proposes an adaptive staged RUL prediction (ASP) method based on multi-sensor and multi-feature fusion (MSMFF). Firstly, a MSMFF method is proposed, which uses information contribution rate and degradation indicator (DI) suitability to initially fuse vibration signals and features respectively. Updates the MSMFF technology with the prognosis information of different degradation indicators, so as to facilitate the construction of component final DI. Secondly, an ASP method is proposed, which adaptively makes different degradation models match the different degradation stages of the component. Based on the definition of the first hitting time, the probability density function of the ASP method is obtained for predicting the RUL of components. Then, a four-step method is proposed to estimate and update the unknown parameters in the model to solve the problem of parameter complexity. Finally, two different sets of experiments are carried out to verify the effectiveness and superiority of the proposed method.
引用
收藏
页数:18
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