Repairable technical systems; creating system signature, Odds ratio, semi markov process approaches

research and development studies. This study is mainly concerned with the calculation of the reliability of technical systems operating under the repair principle. In this direction, first of all, the reliability of the technical system was calculated by creating a system signature under the repair principle in serial and parallel connections. Secondly, a semi-Markov process representing k out of n: F system is created, and the important indicators of the system, the meantime to first failure of the system, the average of the times between successive failures, the average time taken for the system to start working, the average time required for the system to return to the beginning, calculated. Third, the reliability of a consistent system is calculated using the odds ratio of the system. For this, the system was analyzed by dividing it into sub-parts. The fragmentation and assembly process was carried out using a special technique. Finally, the failure probability of the system is calculated by taking the time between failures instead of the operating times of the components in an F system with k outputs from n.