Akademik Veri Yönetim Sistemi
Probability in the Engineering and Informational Sciences, cilt.29, sa.1, ss.77-98, 2014 (SCI-Expanded)
We analyze optimal replacement and repair problems of semi-Markov missions that are composed of phases with random sequence and durations. The mission process is the minimal semi-Markov process associated with a Markov renewal process. The system is a complex one consisting of non-identical components whose failure properties depend on the mission process. We prove some monotonicity properties for the optimal replacement policy and analyze the optimal repair problem under different cost structures.