%0 Journal Article
	%A Akram Khaleghei Ghosheh Balagh and  Viliam Makis and  Leila Jafari
	%D 2014
	%J International Journal of Mechanical and Mechatronics Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 93, 2014
	%T An Optimal Bayesian Maintenance Policy for a Partially Observable System Subject to Two Failure Modes
	%U https://publications.waset.org/pdf/9999273
	%V 93
	%X In this paper, we present a new maintenance model
for a partially observable system subject to two failure modes,
namely a catastrophic failure and a failure due to the system
degradation. The system is subject to condition monitoring and the
degradation process is described by a hidden Markov model. A
cost-optimal Bayesian control policy is developed for maintaining
the system. The control problem is formulated in the semi-Markov
decision process framework. An effective computational algorithm is
developed, illustrated by a numerical example.

	%P 1543 - 1547