Operations Research Center

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    Models of Models: The Symbiotic Relationship between Models and Wargames
    (Proceedings of the 7th International Conference on Simulation and Modeling Methodologies, Technologies and Applications (SIMULTECH 2017), 2017) Mittal, Vikram; Demarest, Jeffrey B.; Gilliam, Kennon S.; Page, Robert L.
    Military planning uses wargames to model the processes and decisions of an operation. As these operations become increasingly complex, the wargames similarly become more complex. Complex wargames are difficult to design and execute. As such, computer-based modeling and simulation can aid the wargame development, ensuring smooth execution. In particular, computer-based modeling and simulation can develop and validate the processes, determine initial conditions, evaluate the rules, and aid in validation. In turn, the wargame can provide useful data that can be fed into detailed models that can provide quantitative analysis to decision-makers.
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    Product Support in a Maintenance Free Operating Period Strategy
    (Vertical Flight Society, 2021) Bellocchio, Andrew; Pegues, Kathryn; Chetcuti, Steven
    Application of a Maintenance Free Operating Period (MFOP) strategy in a fleet of vertical lift aircraft has profound implications to product support. Previous approaches to MFOP focused on estimating the operating period’s probability of success with modeling techniques and improving results using design elements such as inherent reliability. These approaches were aircraft centric and neglected aspects of the sustainment system external to the airframe. Key external facets addressed are the establishment of metrics that adequately measure MFOP performance as a stochastic process, optimization of the recovery period through a systems approach, transition to risk-based maintenance using high fidelity diagnostic and prognostic systems, establishment of an architecture to facilitate quality data consumed by a digital twin, and construction of maintenance policies suited for MFOP. The study concluded that robust product support surrounding the aircraft provides the best likelihood to achieve MFOP strategy success while delivering an efficient recovery period.