矿井通风网络模糊可靠性研究

发布时间：2018-04-18 02:29

本文选题：隶属度函数 + 混联模型　；参考：《南华大学》2013年硕士论文

【摘要】：常规可靠性方法在研究大型通风网络的可靠性问题时需要大量的样本和使用数理统计的方法，这样势必会消耗大量的人力物力，不利于矿山实际生产的运用。而且通风风路中存在大量的不确定性因素和模糊性变量，常规可靠性的研究方法对这类问题的解决又显得无能为力。而使用模糊可靠性理论来研究通风风路的模糊可靠性指标能在较少的样本空间下，并结合矿山专家和技术人员的经验较为便捷的进行通风系统可靠性的研究。本文首先引入了模糊集合扩展原理和区间数理论，对通风系统可靠性中的模糊可靠度和失效率指标进行研究，将通风网络中常用的混联模型进行研究。这一系列的研究是矿山通风网络模糊可靠性分析的理论基础。本文通过扩展原理和三角模糊数确定了一种较为简便实用的矿井通风风路可靠度模糊隶属度函数，并用来计算风路的模糊可靠度。进而使用并串联模型建立通风网络的可靠性模型，并使用两个具体的实例验证了该模型。本文引入线性模糊数法确定了与门模糊算子和或门模糊算子，再使用Fussell-Vesely值衡定法计算风路的重要度，，从而建立了通风网络模糊故障树模型。通过具体的实例，对通风模糊故障树模型进行计算，得到了故障树基本事件失效数据和重要度分析结果，从而验证了模糊故障树模型。本文对矿井通风的模糊可靠度和失效率指标进行了简单的研究，并给出了实际运用的例子。这种分析方法对解决通风系统可靠性问题提供了一种可以借鉴的方法。
[Abstract]:The conventional reliability method requires a lot of samples and a method to use mathematical statistics when studying the reliability problem of large ventilation network , which can consume a lot of manpower and material resources , which is not conducive to the practical production of mines .

In this paper , we introduce the theory of fuzzy set extension and interval number theory , and study the fuzzy reliability and efficiency index in the reliability of ventilation system .

In this paper , a simple and practical fuzzy membership function of mine ventilation path reliability is determined by the extension principle and the triangular fuzzy number , and the fuzzy reliability of the wind path is calculated . Then the reliability model of the ventilation network is established by using the parallel model and two concrete examples are used to verify the model .

In this paper , the fuzzy fault tree model of ventilation network is established by introducing the fuzzy number method , and then using Fussell - Vesely value method to calculate the importance of the wind path , and then the fuzzy fault tree model of ventilation network is established . Through the concrete example , the fuzzy fault tree model of ventilation network is calculated , and the failure data of the fault tree and the analysis result of the importance degree are obtained , and the fuzzy fault tree model is verified .

This paper studies the fuzzy reliability and efficiency index of mine ventilation , and gives an example of practical application . This method provides a reference for solving the problem of reliability of ventilation system .

【学位授予单位】：南华大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD724

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