Recovery Algorithms for Ship Survivability

The proposed work will evaluate use of a Reference Model Based System (RMBS) integrated analysis and information management approach, originally developed for the power utility industry, for use in shipboard system recovery analysis and survivability management. The approach derives spatial and functional interdependency information directly from digitally displayed system diagrams and then uses that information to structure integrated: (1) Linear graph theory based generic first principles analysis, (2) Topology based optimal reconfiguration and system wide reliability analysis, which could later be extended to perform "Total Ship" survivability analysis, and (3) Component level discrete control and switching simulation. Phase I work will be based on modification and extension of existing RMBS software developed by EDD for EPRI. Work will include development of a demonstration model that includes AC and DC electrical distribution, power converter cooling, chill water, firemain and compartmentation. Example recovery analysis and control simulation will be performed for several damage scenarios with varying ship mission priorities. Damage will include standard damage control and casualty control exercise scenarios, and include a total ship survivability exercise that includes simultaneous casualties to multiple systems and multiple compartments.