Evolution-Based Uncertainty Analysis for Incline Hoist  

作　　者：石博强 申焱华 

机构地区：[1]School of Mechanical Engineering,University of Science and Technology Beijing

出　　处：《Journal of Donghua University(English Edition)》2015年第6期995-997,共3页东华大学学报（英文版）

基　　金：National Natural Science Foundation of China(No.51075029)

摘　　要：The effect of uncertainty and its evolution with time on the incline hoist reliability are investigated in this paper.The performance of incline hoist is changed over time and gradually degraded.The degradation will influence the safe usage and reliability of incline hoist.Degradation process can be described by stochastic process.The degradation process of incline hoist is modeled in geometric Brownian motions(GBM),and the drift rate and diffusion rate of this process can reflect the failure extent and fluctuation of the system.Evolution-based uncertainty analysis(EBUA)method is proposed to describe the dynamic reliability of the incline hoist,and the system of incline hoist can be designed with the specified reliability value at the given time.The effect of uncertainty and its evolution with time on the incline hoist reliability are investigated in this paper.The performance of incline hoist is changed over time and gradually degraded.The degradation will influence the safe usage and reliability of incline hoist.Degradation process can be described by stochastic process.The degradation process of incline hoist is modeled in geometric Brownian motions（GBM）,and the drift rate and diffusion rate of this process can reflect the failure extent and fluctuation of the system.Evolution-based uncertainty analysis（EBUA）method is proposed to describe the dynamic reliability of the incline hoist,and the system of incline hoist can be designed with the specified reliability value at the given time.

关 键 词：evolution-based uncertainty analysis(EBUA) reliability incline hoist geometric Brownian motions(GBM) 

分 类 号：TD55[矿业工程—矿山机电]