Reliability modeling and RAM index distribution method based on subway tunnel ventilation system operation mode

The invention belongs to the technical field of ventilation control, and particularly relates to a reliability modeling and RAM index distribution method based on an operation mode of a subway tunnel ventilation system. By analyzing the structure of the subway tunnel ventilation system, reliability models of the system in different operation modes are established, and main weak links in the operation and maintenance process of the subway tunnel ventilation system can be efficiently confirmed; adopting an RAM index distribution method to obtain key RAM indexes such as MTBF (mean time of failure) and reliability of the system and the equipment; by feeding back fault data, an operation and maintenance plan and scheme are made for weak links, and the fault data are improved, so that the optimal RAM index of the system and the equipment is obtained. According to the method, the structure and the operation mode of the subway tunnel ventilation system are fully considered, meanwhile, the RAM indexes of the optimal s