A condition-based maintenance policy with non-periodic inspections for a two-unit series system

An electricity price-dependent control-limit policy for conditionbased maintenance optimization for power generating unit

“…For the price scenario 00001, the largest number of continuous price periods is the average price, i.e. max[T cL , T cM , T cH ]=max [6,9,3]= T cM , the minimal threshold can be assigned to the average price levels, i.e. min [d 1L …”

“…For the price scenario 04150, the largest number of continuous price periods is the average price, i.e. max[T cL , T cM , T cH ]=max [3,7,3]= T cM . And the sum of the periods for different price levels are [T sL , T sM , T sH ]= [9,18,9].…”

“…With rapid development of instrumentation and measurement technology, more efficient maintenance types are needed, such as condition-based maintenance (CBM). For CBM, the maintenance action taken at each inspection is determined once the state of the system is higher than the specified control-limit [3,9,16]. In the class of control-limit policy, maintenance decision is made by comparison of degradation level to the critical thresholds, e.g.…”

“…In the class of control-limit policy, maintenance decision is made by comparison of degradation level to the critical thresholds, e.g. in [3]. Furthermore, functional failure and potential failure was defined by the failure threshold in [16].…”

A condition-based maintenance model for a single component in a system with scheduled and unscheduled downs

“…Wijnmalen and Hontelez [35] used a heuristic algorithm for computing control limits for components in systems under different discounted scenarios, which is formulated within a Markov decision framework. Castanier et al [5] introduced a model to coordinate inspection/replacement of a two-component system via a Markov renewal process and minimize the long-run maintenance cost. However, this model becomes intractable when it would be extended to systems with many components.…”