Research On Preventive Maintenance Decision-making Based On Reliability

Based on the analysis of reliability centered repair(RCM) based on the RCM implementation process, and the spare parts inventory management closely, construct preventive repair cycle- a joint model of spare parts inventory management, establish and perfect the RCM CNC machine tool repair and spare parts inventory management linkage system. The system mainly includes: 1 to identify the important function of the project. Project the failure effect, tasks and major economy as the important project, to make detailed analysis. And the reference of the results of the analysis of failure mode and effect have important functional items are identified. 2 failure mode and effect analysis of hazard. On the important function of projects have been identified for analysis, to provide the necessary information for reliability centered maintenance logic decision next step analysis. If has the analysis results can be directly referenced. 3 logical decision analysis. Through it the selection of the suitable and effective preventive maintenance type on the important function of project or make not for preventive maintenance decision, or change the design proposal put forward. ABC classification of 4 pairs of NC machine tool in important functional parts, according to the different types of spare parts inventory strategy and spare parts ordering strategy research. 5 determine the intervals of preventive maintenance. 6 to establish preventive maintenance, spare parts inventory management joint model. 7 to establish RCM spare parts inventory management linkage system.According to the theory of RCM implementation focus on preventive maintenance cycle optimization carried on the thorough research. Detailed investigates the timing replacement and as two kinds of preventive maintenance mode, maintenance is the introduction of the spare parts inventory management factors, timing change- spare parts inventory joint model is established and as- maintenance spare parts inventory model, determine the preventive maintenance interval, to provide decision support for the establishment of maintenance program; And maintenance mode of two introduced the reliability constraints, obtained at the same time pay attention to the effective maintenance cost and availability and reliability of the preventive maintenance strategy. Through the above process is finally formed RCM-spare parts inventory management linkage system.