Title page for ETD etd-03172010-020231

Type of Document Master's Thesis
Author Griffin, Sean James
URN etd-03172010-020231
Title A systems engineering design of a retirement for cause life management process for life-limited F110-GE-400 engine parts
Degree Master of Science
Department Systems Engineering
Advisory Committee
Advisor Name Title
Blanchard, Benjamin S. Jr. Committee Chair
Hughes, Owen F. Committee Member
Kunec, Daniel Committee Member
  • management
  • life
  • cause
  • retirement
  • engine
Date of Defense 1995-05-05
Availability restricted
├žExtreme temperatures and high component rotational speeds within a gas turbine engine and design constraints limit engineers' ability to design all engine components to last for the expected service life of the engine. Under the United States Navy's current life management philosophy where life-limited engine parts are retired at their B. 1 life, over $210 million (1995 dollars) worth of parts will be replaced with new parts before system retirement in 2010.

Using the systems engineering process, the retirement for cause methodology is adapted for use with and application to the Navy's F11O-GE- 400 engine. A preliminary retirement for cause system design is established, and all life-limited parts are evaluated for participation in the system. A life-cycle cost savings of $270 million is calculated for the four parts selected for management via the established retirement for cause system. Further, this life-cycle cost savings can be achieved with a maximum up-front investment of $4.57 million over two years. Methods for decreasing the upfront investment costs are discussed.

The retirement for cause system defined herein is a feasible and cost effective alternative to the Navy's current life management system for the selected F110-GE-400 engine parts. Flight safety and readiness are shown not to be degraded with implementation of the retirement for cause system. Limitations of this study consists primarily of data non-availability.

  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
[VT] LD5655.V851_1995.G754.pdf 3.26 Mb 00:15:05 00:07:45 00:06:47 00:03:23 00:00:17
[BTD] next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.

Browse All Available ETDs by ( Author | Department )

dla home
etds imagebase journals news ereserve special collections
virgnia tech home contact dla university libraries

If you have questions or technical problems, please Contact DLA.