煤矿安全2017，Vol.48Issue(4)：172-175,4.DOI:10.13347/j.cnki.mkaq.2017.04.045
基于多层流模型的煤层注水系统时效可靠性分析
Reliability Analysis of Coal Seam Water Injection System Based on Multilevel Flow Models
张少民 1于师建 1宋璐璐 1施学通1
作者信息
- 1. 山东科技大学矿业与安全工程学院,山东青岛266590
- 折叠
摘要
Abstract
In order to study the change law of reliability over time in the process of coal seam water injection,multilevel flow models were used to establish the model of coal seam water injection system and describe the relationship between the target and the function.By using the concept of time points and the failure over time,which was in the system reliability analysis method based on the multilevel flow models,the process of coal sean water injection was divided into several periods,and the interval was set to four hours,then the reliability of the system and the subsystem was calculated at all-time points.The polynomial fitting and exponential fitting was used to analyze the error,the polynomial fitting effect was better,and the system reliability was predicted by fitting curve equation.The results showed that in the process of coal seam water injection,the system reliability changed in accordance with the four polynomial rule of time under the influence of failure parts.Based on multilevel flow models,the system reliability analysis method could express system knowledge on different abstract levels,it was useful to find the weakness of system,and it had high application value for the system prediction and the equipment maintenance management.关键词
可靠性/多层流模型/随时间失效/煤层注水系统/误差分析/防尘Key words
reliability/multilevel flow models/failure over time/coal seam water injection system/error analysis/dust control分类
矿业与冶金引用本文复制引用
张少民,于师建,宋璐璐,施学通..基于多层流模型的煤层注水系统时效可靠性分析[J].煤矿安全,2017,48(4):172-175,4.
