Approach to Dependability Modelling for Effectiveness Analysis of Ground Vehicle System

The dependability analysis of every mission period within every mission profile for repairable system is essential for the quantitative evaluation of system effectiveness and for designing effective system. In this paper, the mission succession probability is chosen as measurement of dependability while both Mission Mileage Between Critical Failure(MMBCF) and Mission Time To Restore Function(MTTRF) are constant. On the basis of various repairable situations, the dependability matrix for effectiveness analysis is established with analytical solutions of mission reliability and mission maintainability. Finally, the establishment of dependability matrix for effective analysis of ground vehicle is given as an engineering application example.The results give helpful and practicable basis for effective analysis of complex engineering systems such as flying vehicles,ground vehicles,automobiles.etc.