An object-oriented approach to reliability and quality control modeling of the maintenance effort for U. S. Marine Corps Ground Combat Equipment
Mimms, Bernard F.
Whitaker, Lyn R.
Woods, W. Max
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The U.S. Marine Corps conducts maintenance on combat essential, readiness-reportable ground combat equipment on a continuous basis. This maintenance effort is managed through a standardized database management system, known as the Marine Corps Integrated Maintenance Management System (MIMMS). A method is developed in this thesis which provides the operational commander with an empirically based maintenance forecasting system, using information currently being collected by the MIMMS system, and producing consistently sharper local estimates of individual equipment behavior. With this method, a ground commander can specify a predetermined equipment mixture and an expected exercise duration, based on a general geographic location, and be provided estimates of equipment availability. Thus, he can better manage his maintenance effort and allocation of maintenance resources. Forecasting is done by simulation future repair and failure times from models estimated using available maintenance history data. The simulation is configured to be managed in the MODSIM 11 simulation language (continued) as a series of alternating state changes, for each equipment item, up to a preselected stopping point, which would represent a projected deployment date. Estimates of equipment operational availability are computed from monitored mean failure and repair times in each state. Compilation of the prototype version, simulating six items through three complete transaction groups, is completed in approximately 15 minutes, and execution on an IBM compatible 386-25 based machine concludes in approximately 10 minutes. Object- oriented, Reliability, Quality Control, Simulation Modeling, Maintenance, U.S. Marine Corps, MIMMS
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