基于网络流理论的矿井通风网络可靠性研究

发布时间：2018-01-28 10:32

本文关键词： 安全工程通风网络系统网络流理论可靠性 MATLAB编程不交化最小路集 BDD算法　出处：《安全与环境学报》2017年05期 　论文类型：期刊论文

【摘要】：矿井通风网络是通风系统的重要组成部分,对其进行可靠性研究具有非常重要的意义。针对矿井通风网络系统的自身属性,结合网络流理论建立了通风网络可靠性评价模型。对各风路的风量进行动态实时监测,并运用统计学方法分析了风网中风流的变化趋势及风量分布规律,得到了通风系统中任一风路风量的分布密度函数,进而推导出各风路的可靠性指标值。运用简化的邻接终点矩阵法求解通风网络最小路集并基于MATLAB编程实现此算法。提出了一种简化的不交化最小路集算法:对于任一长度为m-1的最小路,只需在其中添加n-m+1条该最小路中不出现的分支的逆,就可直接获得不交化结果,其余最小路采用BDD算法进行不交化运算。通过以上方法可量化分析通风网络的可靠性。最后通过实例解算检验其可行性。
[Abstract]:Mine ventilation network is an important part of ventilation system. It is of great significance to study the reliability of mine ventilation network system. Based on the network flow theory, the reliability evaluation model of ventilation network is established, and the dynamic real-time monitoring of air flow in each wind network is carried out, and the variation trend and distribution law of air flow in wind network are analyzed by statistical method. The distribution density function of air volume in any ventilation system is obtained. Then, the reliability index values of each wind path are derived. The minimal path set of ventilation network is solved by using the simplified adjacency endpoint matrix method, and the algorithm is implemented based on MATLAB programming. A simplified disjoint minimum path set is proposed. Algorithm:. For any minimum path of length m-1. Only by adding n-m 1 inverse of the branch that does not appear in the minimum path, the disjoint result can be obtained directly. The BDD algorithm is used for disjoint operation in the other minimum paths. The reliability of the ventilation network can be quantitatively analyzed by the above methods. Finally, the feasibility of the proposed method is verified by an example solution.
【作者单位】：昆明理工大学国土资源工程学院;
【分类号】：TD725
【正文快照】： we have first of all adopted the continuous attributes discretizationmethod based on the rough set theory to discrete the continuousdata from the original samples of the mining water inrush.Then,we have obtained the information of the water inrush from t

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