Storage Reliability of Missile Materiel Program:Relay Analysis.

摘要

The report documents findings on the non-operating reliability of relays. The study covers 2218million part-hours. The best sources show a storage failure rate of 1.3fit (failures per billion hours) with a one sided 90percent confidence limit of 5.0fit. Elements of relay design and of the processes at the contacts are reviewed. The possibilities of solid state and saturable core alternatives are described. Recommendations include periodic test and inclusion of oxygen in the fill gas. The objective of this program is the development of non-operating (storage) reliability prediction and assurance techniques for missile materiel.