Research on Model and Simulation for the Military Aircraft Availability

The operational availability is one of the important measures of the readiness for military aircrafts.However,the classical analytical method for calculating the operational availability has its short points.A conceptual model for operational availability is developed based on extensive system factors existing in the operation,maintenance and support procedures of military aircrafts.Based on this conceptual model and by using the software tool Extend,a simulation model is built.The results from the simulation show that the model runs stably and reliably,which validates its modular system of algorithms.The analytical objective of the model is achieved with high credibility,thereby providing a new method for the investigation of military aircraft availability.