Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 56 for “"military aircraft"”.
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An approach to the estimation of life cycle costs of a fiber-optic application in military aircraft
As significant technological advances in fiber optics and optical data transmission methods are being made, it is necessary to develop appropriate methods for estimating life cycle costs for alternative coaxial/twisted pair wire and optical fiber avionics. Measures of effectiveness are suggested …
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Designing a Make vs. Buy Strategy for Expendable and Attritable Aircraft Engine Development
Military aircraft engine customers are increasingly demanding agility and affordability for both engine development and production. In this thesis, we propose that this inflection point in aerospace and defense towards agility and affordability will be characterized by time-based competition and …
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Political economy insights into the defense acquisition process : lessons from the Joint Strike Fighter Program
The military aircraft industry is a cornerstone of national security and of the economic health of the United States. The Joint Strike Fighter (JSF) program was sold as a solution to a host of needs, from advancing the capabilities of each Service, modernizing an aging fleet, countering …
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Effect of ultraviolet exposure on the durability of polycarbonate
… used in windshield-canopy structures for military aircraft since it is transparent and possesses excellent toughness characteristics at temperatures well below its glass transition region. It is believed that ultraviolet radiation present in sunlight causes polycarbonate to degrade. This …
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Systems-theoretic process analysis and safety-guided design of military systems
… through the operations of a system. A future military aircraft example demonstrates STPA's applicability for preliminary hazard analysis, analysis of alternatives, organizational design, developmental test, and into operations. STPA is a hazard analysis framework that helps manage risks and …
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USS John F. Kennedy Memorial Center
Aircraft Carriers are naval vessels that allow for landing and take-off of military aircraft. Typically, Aircraft Carriers are active for 50 to 60 years then need to be retired or decommissioned. The ship is either torn apart for resources, sunk to the bottom of the ocean to serve as an artificial …
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The South African military aerospace industry: An overview of the special defence account more commmonly known as 'The South African Arms Deal'
… paper focuses specifically on the South African Military Aerospace Industry as most of the weapons procured under the arms deal were military aircraft. Taking into account the numerous social needs of South Africa, the purpose of this paper is to inter alia try to establish the rationale behind …
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Industrial Scalable Rolling Element Bearing Diagnostic and Prognostic Modelling
… such as wind turbines and both commercial and military aircraft. The following thesis extends published diagnostic models for bearing condition through inline wear debris sensors through experimental observations and a physical understanding of the bearing degradation mechanics. This diagnostic …
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Gulf Regional Airspace Strategic Initiative Modeling Using Discrete Event Simulation
… affected by future changes in the airspace and military installations in the Northwest Florida Panhandle in creating a compromise that equally protects each stakeholder's airspace and airfield resources now and into the future. As part of this effort, the Gulf Regional Airspace Strategic …
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Characterizing The Acoustic Properties Of The Jet Lab At The National Center For Physical Acoustics
… since the first use of the jet engine for military aircraft in World War II. For further uses of the jet engine to be possible, problems due to jet noise must be researched and addressed. Anechoic chambers were proposed as a testing facility for research in aerodynamic noise because of …
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An Analysis of the Conventional Wire Maintenance Methods and Transition Wire Integrity Programs Utilized in the Aviation Industry.
<p>Aging aircraft wiring poses a significant threat to both commercial and military aircraft. Recent air disasters involving aging aircraft wiring have made it clear that aging wiring can be catastrophic. Aging of an electrical wiring system can result in loss of critical functions of equipment or …
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Comparative study of non-destructive testing methods of defect detection on aircraft
… of composite materials both in civilian and military aircraft because of their mechanical resistance, high toughness, reduced weight and immunity to corrosion. Any damage in the fibers of these composites requires an evaluation in order to ensure the integrity of aircraft structures. …
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Building flexibility in the volatile aftermarket parts : supply chains of the defense aerospace industry
… of The Boeing Company, aftermarket support of military aircraft serves as an increasingly large source of revenue. One of the newest contracts between Boeing and the U.S. Government created such a supply partnership at the Army Rotorcraft Repair Depot in Corpus Christi, Texas. At this depot, …
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Best practices in aircraft engine MRO : a study of commercial and military systems
… (MRO) is a key activity in the lifecycle of an aircraft and its engines. Because of the typically long operational lifetimes expected from these costly assets, MRO is necessary to maintain these systems in a safe and functional condition, so that they can fulfill the operational role that they …
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Durability testing of an aircraft structural health monitoring system
… standards for the durability of commercial and military aircraft avionics are identified, and the relation to SHM systems is described. Using these existing standards, a test matrix and testing specifics are developed to assess the durability of SHM systems. Careful consideration is necessary in …
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Silicon infiltration of silicon carbide selective laser sintered preforms
… in a wide variety of industries, including military, aircraft, tooling and automotive. The silicon matrix adds strength to silicon carbide, is robust at high temperatures, and has a comparable coefficient of thermal expansion. Shrinkage measurements, optical microscopy, density measurements, …
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Modeling of the human head/neck system using rigid body dynamics
Emergency ejection of an air crew member from military aircraft in flight places dangerously large vertical acceleration forces on the body of the member. The additional mass on the head due to Night Vision Goggles and Helmet Mounted Displays increases the vulnerability of the head/neck system to …
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The legality of the Air Defence Identification Zones under International Law
… states impose reporting obligations on civil and military aircraft for the purpose of national security.1 The purpose for ADIZ is said to be national security; however some argue that ADIZs are used as a ploy by states to extend their territory and in doing so violate international air law by …
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