Research of Maintenance Task Interval Optimization of Elevator Hydraulic Actuation System

作     者：CHEN Rui WANG Yiping SUN Tieyuan 

作者机构：Shanghai Aircraft Customer Service Co. Ltd. 

出 版 物：《International Journal of Plant Engineering and Management》 (国际设备工程与管理（英文版）)

年 卷 期：2019年第24卷第3期

页      面：169-179页

学科分类：08[工学] 

主　　题：elevator hydraulic actuation system maintenance interval minimum cost Weibull 

摘      要：In order to solve the best maintenance interval problem of the elevator hydraulic actuation systems on civil aircraft, a method based on reliability and cost minimum is introduced in this paper. The estimation of system reliability is presented by using two-parameter Weibull distributions. The parameters are estimated by using Weibull probability statistical analysis and the practical operational data. Then, the maintenance optimization model isformulated where the objective function is to minimize the expected schedule maintenance cost in a time unit. The results of numerical example show that the proposed model could scheme the optimal maintenance intervals for the considered system when the parameters are given. This research has certain significance in theoryand engineering practice.