Integrated System Design and Maintenance Modeling Tools for CBM

"As in human medicine, prescriptive based health monitoring (PBHMS) can focus on the symptoms or can be targeted to cure the problem depending on the need and resulting prognostic outcome. The key difference between the more advanced PrescriptiveMaintenance concept and existing Predictive, Preventative and Run-to-Failure Maintenance schemes is that PBHMS optimizes operational capability. The PBHMS described in this proposal can process information from various "health" management informationsources such as prognostic/predictive monitors, observations, trends, experience, and diagnostic outcomes. The PBHMS will be able to recommend appropriate operations and maintenance actions according to best Navy practices, as well as schedule treatment,not only on parts that have already failed, but also those which are impending failure or are still healthy. The PBHMS prescriptive maintenance actions shall take into consideration urgency, priority, capability, capacity, and cost. Our approach is toleverage technology and extensive knowledge developed in existing Navy programs by (1) Evolving the existing Prognostics Framework as a foundation for the overall prescriptive architecture, (2) Using insights acquired in the Total Ship Monitoring andBattle Group-Automated Maintenance Environment programs, and (3) Augmenting our TSM/BG-AME developments to support the comprehensive information and decision support system required of a PBHMS concept.