Patent ID: 8229776
Filing Date: 2012-07-24
Classification: G06Q

Abstract:
1. A computer-implemented method for evaluating subsystem technology pertaining to energy consumption in a system-of-subsystems environment onboard a ship, the method comprising: defining, using a computer, the technology to be evaluated and the requirements for effecting said technology, said requirements relating to both a subsystem encompassing said technology and a system overarching said subsystem, said defining of said technology and said requirements including formulating at least one one-line diagram, said at least one one-line diagram including representation of components of said overarching system so as to be illustrative of said technology and said requirements; modeling, using a computer, said technology and said requirements, said modeling of said technology and said requirements including establishing plural submodels of said subsystem that are considered as characterized by plural linkages therebetween and as constituting an energy-consumption model of said overarching system, said submodels including a design reference mission submodel and a fuel usage submodel, said design reference mission submodel representing operating conditions of a ship in relation to operation of the ship, said operating conditions including speed, state, and time, said fuel usage submodel being characterized by a selected period of time and representing respective effects on energy consumption of propulsive machinery components including main engine machinery, secondary engine machinery, and propulsion motor machinery, said modeling of said technology and said requirements including formulating at least one integrative diagram illustrative of said design reference mission submodel and said fuel usage submodel; performing, using a computer, sensitivity analysis and trade space exploration, said performing of said sensitivity analysis and said trade space exploration including determining plural design variables of said submodels, plural relationships between said design variables, and respective sensitivities of response variables to said design variables, said determining of said design variables, said relationships, and said sensitivities including defining upper and lower bounds of said design variables and formulating at least one design matrix diagram illustrative of said design variables and said response variables; and finding, using a computer, plural optimal designs of said technology, said finding of said optimal designs including formulating at least one design-comparative diagram, said at least one design-comparative diagram including comparison of said optimal designs so as to be illustrative of relative optimizations of said optimal designs; wherein said submodels include a machinery life cycle cost submodel, a technical integration risk submodel, and a system architecture design synthesis submodel; wherein said modeling of said technology and said requirements includes formulating at least one integrative diagram illustrative of said machinery life cycle cost submodel, said technical integration risk submodel, and said system architecture design synthesis submodel; wherein said establishing of said submodels includes formulating at least one integrative diagram illustrative of said submodels and said model; and wherein said performing of said sensitivity analysis and said trade space exploration includes constructing at least one design of experiments.