Simulation-Based Inspection Policies for a One-Shot System in Storage Over a Finite Time Span

Notice of Retraction Optimal inspection schedules for one-shot systems with two types of units

“…3. For representing the inspection interval of system in the Phase 1, the value of each gene in the chromosomes is "0" or "1" and is generated with the uniform distribution [10]. On the other hand, we use real numbers in order to represent the preventive threshold of Type 2 units in the phase 1 and the starting point of each system in the phase 2, and assign the values randomly.…”

“…Ito and Nakagawa worked on the optimal inspection policy problems for a system in storage and derived the number of inspections and inspection time until overhaul to minimize the average cost [5]. Yun et al studied an inspection policy problem for a one-shot system with two types of units and assumed that the life time of Type 2 is given [10]. Optimal inspection intervals with given replacement times of Type 2 units to minimize the life cycle cost and satisfy the target interval availability estimated by simulation were determined.…”

“…Previous studies dealt with an inspection policy problem for only a one-shot system but in practice, many one-shot systems are usually in storage, and are inspected and maintained periodically [9,10]. Also, there are the maintenance resources at the inspection and maintenance sites to perform the inspection and maintenance of one-shot systems.…”

Optimum Maintenance Policy for a One-Shot System with Series Structure Considering Minimal Repair

“…They formulated the periodic inspection policy for a system requiring high reliability. Yun and other researchers considered the inspection policy for a system with two types of unit, where intrinsic replacement times for one type of unit were predetermined [5]- [7]. They determined the optimum inspection schedule of another type of unit by simulation to meet the goal of reliability.…”

Replacement timing for a one-shot system with minimal repair

“…A system that can be used only once such as a missile or an air-bag is called one-shot system [1] or dormant system as it spends almost all its life in repository. Since one-shot system is mainly used for some critical missions including combat and life-saving, it is imperatively important to maintain its high availability.…”