The Reliability Evaluation of Electromagnetic Valve of EMUs Based on Two-Parameter Exponential Distribution
Jianwei Yang*, 1, 2, Chunqing Zhao1, 2, Xi Li3, Fumin Wang4
Identifiers and Pagination:Year: 2015
First Page: 630
Last Page: 636
Publisher Id: TOMEJ-9-630
Article History:Received Date: 17/2/2014
Revision Received Date: 21/3/2015
Acceptance Date: 9/6/2015
Electronic publication date: 16/9/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In order to solve reliability evaluation of life of electromagnetic valve of EMUs, this paper evaluated the life of electromagnetic valve under small sample size based on zero-failure data. Firstly, prior distribution of the failure probability was taken into consideration and then the posteriori distribution was obtained by using the Bayes method so that the Bayes estimation could be received under the square loss. Finally, according to the pi received, the reliability parameters of two-parameter exponential distribution were estimated based on weighted least square method. In addition, this paper applied the reliability theory to the reliability life evaluation of electromagnetic valve of EMUs which shows that this method can solve the reliability assessment problem providing certain theoretical basis for the reliability of electromagnetic valve.