The Computer-aided Design On Reliability Theory For Mine Ventilation System

With the development of coal industry in China, there are more and more strict demands on the reliability of mine ventilation system. In order to lower the occurrence of various accidents and reduce the loss of the life property, it is urgently requested that we should perfect the reliability evaluation theories and technique system of mine ventilation system further more, and should establish the evaluation model of ventilation system which is much more coming close the actual of mine production.It is the key of boosting up the actual effect quality, feasibility, expanding and applying quality that more perfecting and improving reliability theory mechanism of mine administrant means. This article has mainly conducted following research:1. Introduced the general model of mine repairable system, and discussed the reliability model of the sole system, the cascade system, the parallel system as well as the general system.2. Making use of network stream theory, aiming at the topological structure of the mine ventilated network and the specialty of ventilated buildings, setting up the ventilated network reliability evaluation model with functional style.3. In allusion to the repairable specialty of the main fanner subsystem, applying Markov process theory, basing on the repairable theory of cold reserve, setting up reliability model of the main fanner subsystem used in mine.4. In foundation of the known reliability integrated index of the system, setting up reliability distribute model about mine ventilation system, which is based on relative failures frequency.