Theses and Dissertations
The effect of applied tensile stress on localized corrosion in sensitized AA5083
(Monterey, California: Naval Postgraduate School, 2015-09)
This thesis describes significant changes in the type and degree of localized corrosion for sensitized AA5083 under an applied tensile stress. AA5083 is an aluminum-magnesium alloy that experiences severe intergranular ...
Extending quad-rotor UAV autonomy with onboard image processing
(Monterey, California: Naval Postgraduate School, 2015-03)
One of the most dynamic technological advances of the last decade is the development of unmanned and autonomous vehicles. For the military, these vehicles represent a safer and more efficient way of fighting wars in aerial, ...
Systematic review of ultrasonic impact treatment parameters on residual stresses of welded non-sensitized versus sensitized aluminum-magnesium
(Monterey, California: Naval Postgraduate School, 2015-03)
This thesis focuses on the use of x-ray diffraction to measure residual stresses around welds in 5XXX series aluminum-alloys used in naval ship structures both in the laboratory and the field. Tensile residual stresses are ...
A novel nonelectrolytic process for chromium and nickel coating
(Monterey, California: Naval Postgraduate School, 2015-06)
The use of hexavalent chromium in metal coating operations, as per electrolytic processing, is subject to increasingly restrictive regulations due to its carcinogenic and toxic properties. Yet, these coatings are critical ...
Implementation of Simulink controller design on Iris+ quadrotor
(Monterey, California: Naval Postgraduate School, 2015-09)
The thesis has two primary objectives. First, it develops a high-fidelity 6DOF flight dynamics model of a multi-copter UAV, and uses it for the design and implementation of the linear attitude controller onboard of an ...
Initial testing for the recommendation of improved gas metal arc welding procedures for HY-80 steel plate butt joints at Norfolk Naval Shipyard
(Monterey, California: Naval Postgraduate School, 2015-12)
Hull cut welding proficiency is an essential skill maintained by personnel at naval shipyards. This thesis explores arc weld theory to develop ideal submarine hull butt joint designs and recommends preliminary testing to ...
Engineering of nanoscale antifouling and hydrophobic surfaces on naval structural steel HY-80 by anodizing
(Monterey, California: Naval Postgraduate School, 2015-06)
The impact that biofouling has on a ship’s performance has long been recognized, since it increases the frictional resistance of the hull and can increase the ship’s fuel consumption. In this study, the spectrum of hydrophobic ...
Development of a cross-flow fan powered quad-rotor unmanned aerial vehicle
(Monterey, California: Naval Postgraduate School, 2015-06)
The research presented is dedicated to the advancement of construction techniques in order to implement new designs of a vehicle suited for cross-flow fan propulsion. This is accomplished by designing a quad-rotor cross-flow ...
Novel natural convection heat sink design concepts from first principles
(Monterey, California: Naval Postgraduate School, 2016-06)
This was a two-part numerical study using ANSYS Fluent to develop novel heat sink concepts from first principles. The objective of this research was to highlight geometric structures that incorporate the principles of the ...
Wing-embedded, cross-flow-fan, vertical takeoff and landing air vehicle
(Monterey, California: Naval Postgraduate School, 2016-06)
This research demonstrated that a vertical takeoff and landing aircraft capable of transitioning to conventional flight using cross-flow fans is possible. In particular, the design and manufacture of a wing-embedded ...
Refine By:
Advisor
Author
Branch Of Service
Date Issued
Degree
Department
-
Mechanical and Aerospace Engineering (45)
-
Mechanical Engineering (45)