Copula-Based Approach to Reliability Analysis of Phased-Mission Systems
عنوان مقاله: Copula-Based Approach to Reliability Analysis of Phased-Mission Systems
شناسه ملی مقاله: JR_IJRRS-5-2_005
منتشر شده در در سال 1401
شناسه ملی مقاله: JR_IJRRS-5-2_005
منتشر شده در در سال 1401
مشخصات نویسندگان مقاله:
Preeti Srivastava - Department of Operational Research, University of Delhi, Delhi-۷, India
Satya Rani - Department of Operational Research, University of Delhi, Delhi-۷, India
خلاصه مقاله:
Preeti Srivastava - Department of Operational Research, University of Delhi, Delhi-۷, India
Satya Rani - Department of Operational Research, University of Delhi, Delhi-۷, India
A phased-mission system (PMS) involves several different tasks or phases that must be accomplished in sequence. The system configuration, task success criteria, and component failure characteristics may vary from phase to phase. Consequently, the reliability evaluation of PMSs is more challenging than that of single-phase in the field of system reliability analysis. The paper deals with the reliability evaluation of non-repairable Phased-Mission Systems with three phases and five phases involving dependent components in each phase. The cumulative exposure model has been used to model a PMS, and the dependency between components of a system in a phase is modeled using the Gumbel-Hougaard copula. Reliability importance analyses of the ۳-PMS and ۵-PMS have also been carried out. The method developed has been illustrated using numerical examples. The proposed methodology can also be generalized to PMSs with more than five phases.
کلمات کلیدی: Copulas, cumulative exposure model, phased-mission system, Reliability, reliability importance measure
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1706871/