Depot-Level Simulation and Multivariate Analysis on B-1 High Velocity Maintenance

<p>The objective of this thesis is to gain insights on the B-1B depot maintenance operations with a focus on direct maintenance hours or burn rate under the implementation of High Velocity Maintenance (HVM). Based on historical depot maintenance data and the current B-1 depot HVM prototype data a discrete-event simulation model is developed using Arena 12.0. Some United States Air Force supply chain influences such as manning levels and kitting characteristics of the B-1 depot operations are incorporated in our models as design factors. The model captures the stochastic nature of 30 HVM tasks performed on one B-1 aircraft in a representative HVM cycle at the B-1 depot located in Oklahoma City Air Logistics Center Tinker Air Force Base. To examine the impact of HVM we vary the levels of the design factors and conduct a design of experiment (DOE). The DOE analysis reveals that manning levels and kitting characteristics have statistically significant impact on some HVM task completion times which are used collectively as a surrogate measure for burn rate. In particular manning schedule with a centric focus on direct maintenance high task kit availability and small kit deficiency produce the highest burn rate. Additionally by performing multivariate analysis we are able to reduce the dimensionality of the output statistics and conclude that kit deficiency is the main driver for HVM task duration with our simulation.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>