基于耗散结构理论的矿井生产系统安全研究
[Abstract]:Based on dissipative structure theory and from the point of view of system engineering, this paper studies the safety of mine production system in four aspects: "human", "material", "environment" and "management". By studying the characteristics of mine production system, such as openness, far from equilibrium state, random fluctuation, nonlinear interaction among various elements, self-organization and so on, the dissipative mechanism of system safety state is expounded, and the safety evolution process of mine production system is studied. From the two aspects of stability and reliability, taking safety entropy and energy as the research object, the safety entropy describes the stability of the system, the energy describes the reliability of the system, and studies its dissipation process. The mathematical model of safety entropy and energy of mine production system is established to evaluate the safety of mine production system. The safety evaluation index system of mine production system is established. The membership function is established with reference to national standards and industry norms. The comprehensive weight of each index is obtained by combining AHP and entropy weight method. According to the risk classification table, the stability grade table and the reliability grade table of the mine production system are worked out. Through the mathematical model of safety entropy, the membership degree and comprehensive weight of each index are substituted to obtain the value of system safety entropy and evaluate the stability of the system, and the PEARSON function of statistics is used to evaluate the stability of the system. The correlation coefficient of ideal mine production system and actual mine production system is calculated, the energy function of Liangjia coal mine production system is constructed, and the energy value of Liangjia coal mine production system is obtained by combining the system safety entropy value. The reliability evaluation of mine production system is carried out, and compared with fuzzy comprehensive evaluation, the results and errors of the two evaluation methods are analyzed, and the accuracy and reliability of the safety evaluation method based on safety entropy and energy are verified.
【学位授予单位】:山东科技大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:TD79
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