Logistics Reliability Clause Samples
Logistics Reliability. Logistics reliability is the ability of a system to perform failure free, under specified operating conditions and time without demand on the support system. Typical measures include mean time between maintenance (MTBM), demand (MTBD) or removals (MTBR). They are defined as follows: MTBM = Number of life units (flight hours, operating hours, possessed hours, etc)/ Number of maintenance events, schedules and/or unscheduled MTBD = Number of life units (flight hours, operating hours, possessed hours, etc)/ Number of spares consumed MTBR = Number of life units (flight hours, operating hours, possessed hours, etc)/ Number of item removals
Logistics Reliability. Logistics reliability is a measure of the system's frequency of maintenance under defined operational and support concepts, using specific logistics resources. A measure of logistics reliability is Mean Time Between Maintenance (MTBM). It is the average time between all maintenance events, that is, both scheduled and unscheduled events. MTBM is defined as follows: MTBM = Number of operating hours Number of maintenance events
Logistics Reliability. The measure of the ability of an item to operate without placing a demand on the LS structure for repair or adjustment. Logistics reliability recognizes the effects of occurrences that place a demand on the LS structure without regard to the effect on mission or function. (DAU Glossary) Measures of logistics reliability include the probability that no corrective (or unscheduled) maintenance, unscheduled removals, or unscheduled demands for spare parts will occur following the completion of a specific mission profile. Logistics reliability may be expressed as a function of Mean Time Between Unscheduled Maintenance (MTBUM) (see paragraph 8 for definition) and/or Mean Time Between Demand for Spares.