电器与能效管理技术Issue(6)：59-63,5.DOI:10.16628/j.cnki.2095-8188.2024.06.009
无失效数据时城轨车辆安全相关继电器可靠性评估方法研究
Research on Reliability Evaluation Method for Safety Related Relays of Urban Rail Vehicles Without Failure Data
段洪亮1
作者信息
- 1. 中车长春轨道客车股份有限公司,吉林 长春 130062
- 折叠
摘要
Abstract
In practical application,the safety-related relays for urban rail vehicles generally do not fail,making it difficult to analyze and evaluate the distribution of their life using common methods.Two methods are proposed for estimating the reliability of relays in the absence of failure data.One method involves using non-parametric methods to transform the problem of estimating the distribution parameters into a binomial distribution under unknown distribution conditions,in order to estimate the lower confidence limit of reliability.The other method assumes unknown shape parameters of the Weibull distribution and uses engineering experience to estimate the lower confidence limit of reliability.The feasibility and effectiveness of the proposed methods are demonstrated through example calculations,and the calculation errors are compared and analyzed.The application of this approach can effectively evaluate the reliability level of relays under actual operating conditions,providing the assurance for the safe and reliable operation of vehicles.关键词
城市轨道/继电器/无失效数据/可靠性评估Key words
urban rail/relay/no failure data/reliability assessment分类
信息技术与安全科学引用本文复制引用
段洪亮..无失效数据时城轨车辆安全相关继电器可靠性评估方法研究[J].电器与能效管理技术,2024,(6):59-63,5.
