Traditional reliability design concepts, and even extensive redundancy, fail to achieve the necessary reliability potential required for long term orbital and space missions. A design and operational approach allowing system restoration through maintenance can significantly arrest reliability degradation for missions extending up to several years This paper discusses some facets of the reliability-maintenance relationship, including accessibility, spares, crew duty cycle, and design standardization. An example application demonstrates the effectiveness of the maintenance approach while utilizing conservative state-of-the-art failure rates. Although the concepts described are somewhat theoretical, analogies in past experience substantiate them.
Exploiting the Reliability-Maintenance Relationship for Manned Missions of Extended Duration
Sae Technical Papers
SAE World Congress & Exhibition ; 1964
1964-01-01
Conference paper
English