Download or read book Methods for Determining Performance Expectations and Optimal No Build Times of Fielded Jet Engines written by Mark E. Mlikan and published by . This book was released on 1996-06-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates methods for determining fielded jet engine performance expectations. Data exported from the Naval Aviation Logistics Data Analysis (NALDA) data base was fitted by a Weibull distribution to obtain the engine probability density function, cumulative density function, mean time between failure, failure rate, and condition reliabilities. The thesis applies the results of the data analysis by using a commercial software package, Mathcad, to find the solution to an optimizing equation for average maintenance cost per hour of engine critical component operation. The solution yields optimum no build times given the component's hard time, ratios of several inspection/repair cost factors, and properties of the failure time probability distributions of the engine and component. The goal is to economize resources by inspecting life limited components when they are available after having accumulated a predetermined number of operating hours. The procedures developed can be used for any aircraft engine or any mechanical component with failure data that can be fitted to a Weibull distribution and with maintenance cost ratios that fit the model presented herein.

Download or read book Methods for Determining Goals and Expectations for Fielded Jet Engines written by John A. Malsbury and published by . This book was released on 1995 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates methods for determining goals and expectations for fielded jet engines. Some of these methods employ concepts used in Reliability Centered Maintenance (RCM). The procedures developed here can be applied to any fielded jet engine. The data used by this thesis was extracted from the Naval Aviation Logistics Data Analysis (NALDA) database. The desktop software programs that were used to attain reliability parameters are readily available to any command. The data analysis accomplished here demonstrated that cannibalization of engines has impacted adversely on reliability. A model was developed to determine no-build times for jet engines at the Intermediate Maintenance and Depot level of repair based on engine reliability and the conditional probabilities of survival of significant components of the engine and their specified maximum operating times.

Download or read book Methods for Determining Goals and Expectations for Fielded Jet Engines written by John A. Malsbury and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates methods for determining goals and expectations for fielded jet engines. Some of these methods employ concepts used in Reliability Centered Maintenance (RCM). The procedures developed here can be applied to any fielded jet engine. The data used by this thesis was extracted from the Naval Aviation Logistics Data Analysis (NALDA) database. The desktop software programs that were used to attain reliability parameters are readily available to any command. The data analysis accomplished here demonstrated that cannibalization of engines has impacted adversely on reliability. A model was developed to determine no-build times for jet engines at the Intermediate Maintenance and Depot level of repair based on engine reliability and the conditional probabilities of survival of significant components of the engine and their specified maximum operating times.

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Download or read book Methods for Performance Goal Setting of Fielded Jet Engines written by Michael R. Caudill and published by . This book was released on 1995 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates methods for constructing fielded jet engine performance goals using Non-Parametric and Parametric analysis methods. The procedures developed can be applied with any fielded jet engine. Emphasis is placed on demonstrating the use of the Naval Aviation Logistics Analysis (NALDA) database in conjunction with existing spreadsheet software programs to develop performance goals for flight hours between repairs, infant mortality rate and proper mix of scheduled/unscheduled removals. Conditional Probabilities were calculated that will assist maintenance planners in scheduling engine removals for planned maintenance.

Download or read book Methods for Performance Goal Setting of Fielded Jet Engines written by Michael R. Caudill and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates methods for constructing fielded jet engine performance goals using Non-Parametric and Parametric analysis methods. The procedures developed can be applied with any fielded jet engine. Emphasis is placed on demonstrating the use of the Naval Aviation Logistics Analysis (NALDA) database in conjunction with existing spreadsheet software programs to develop performance goals for flight hours between repairs, infant mortality rate and proper mix of scheduled/unscheduled removals. Conditional Probabilities were calculated that will assist maintenance planners in scheduling engine removals for planned maintenance.

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