Download or read book Turbine Aircraft Engine Operational Trending and TT8D Static Component Reliability Study written by A. Bruce Richter and published by . This book was released on 1992 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 A Matter of Gravity written by Enid Bagnold and published by Samuel French, Inc.. This book was released on 1978 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: At its center is eccentric dowager Mrs. Basil, who chooses to live in only one room of her Oxford mansion. Her quiet existence is disrupted by the arrival of her grandson Nicky and four of his friends and new cook-housekeeper Dubois, who startles the mistress of the house by levitating in the air. The miracle confounds the woman, who begins to question her lifelong belief that God does not exist.\
