On-Board Preventive Maintenance: Analysis of Effectiveness and Optimal Duty Period

  • Authors:
  • Ann T. Tai;Herbert Hecht;Savio N. Chau;Leon Alkalaj

  • Affiliations:
  • -;-;-;-

  • Venue:
  • WORDS '97 Proceedings of the 3rd Workshop on Object-Oriented Real-Time Dependable Systems - (WORDS '97)
  • Year:
  • 1997

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Abstract

To maximize reliability of a spacecraft which performs long-life (over 10-year), deep-space mission (to an outer planet), a fault-tolerant environment incorporating on-board preventive maintenance is highly desirable. In this paper, we present an initial model-based study which identifies the key factor for the reliability gain from on-board preventive maintenance and demonstrates the capability of analytic modeling in determining the optimal interval between maintenance (duty period).