This Is AuburnElectronic Theses and Dissertations

Browsing Auburn Theses and Dissertations by Department "Aerospace Engineering"

Now showing items 41-60 of 130

Determination of the Image Distance in a Plenoptic Camera 

Thomason, Chelsea (2014-12-09)
Two methods for determining the distance between the lens of a plenoptic camera and the focal plane, known as the image distance, are presented and tested. The plenoptic camera is a form of light field imaging, which seeks ...

Development and Implementation of a Trajectory Prediction Methodology 

Robertson, Clay Jackson (2012-04-16)
Operation of unmanned aircraft in the United States' National Airspace System (NAS) is currently severely restricted, primarily due to the need to ensure adequate separation between manned and unmanned aircraft (UA). A ...

Development and uncertainty characterization of 3D particle location from refocused and perspective shifted plenoptic images 

Hall, Elise (2019-06-13)
In recent years, the development of non-invasive 3D diagnostics has become a significant area of research due to the wide variety of available techniques and the multitude of engineering problems that benefit from these ...

Development of 3D Background Oriented Schlieren with a Plenoptic Camera 

Bichal, Abhishek (2015-07-30)
This dissertation investigates a novel idea of implementing background oriented schlieren (BOS) with a plenoptic camera along with its application for 3-dimensional (3D) density measurement and for depth perception (DP) ...

Development of a 3-D Fluid Velocimetry Technique based on Light Field Imaging 

Lynch, Kyle (2011-05-04)
A novel method for performing 3-D particle image velocimetry is developed and demonstrated. The technique is based on light field photography, which uses a dense lenslet array mounted near a camera sensor to simultaneously ...

Development of a Direct Density Measurement Technique for Aero-Optic Analysis of a High-Velocity, Compressible Flow Field 

Reid, John (2011-04-28)
A direct density measurement technique was developed for high-velocity, compressible flow fields using acetone planar laser induced fluorescence (PLIF). Motivation for this work was mainly aero-optics. A 4” x 4” transonic ...

Development of a High Dynamic Velocity Range Processing Scheme for Time-Resolved Particle Image Velocimetry Measurements 

Haynes, R. Harris (2013-05-02)
The development, validation, and demonstration of a novel computational procedure to supplementally process time-resolved particle image velocimetry (TR PIV) measurements are described. The motivation for such work stems ...

Development of a High Speed Three-dimensional Flow Visualization Technique 

Satija, Aman (2007-12-15)
A high-speed three-dimensional flow visualization technique has been developed. The technique involves the generation of laser pulses at a high repetition rate, which are subsequently converted to sheets of light and ...

Development of a Multi-band Plenoptic Camera for High Temperature Measurements 

Kelly, Dustin (2020-05-13)
In this thesis, the development of a novel multi-band plenoptic pyrometer is discussed and applied to several applications of interest in the engineering field. The multi-band plenoptic camera is a non-contact measurement ...

Development of a one-dimensional moving window atomistic framework to model steady state shock wave propagation 

Davis, Alexander (2020-04-10)
We develop a long-time, large-domain moving window atomistic framework using Molecular Dynamics (MD) to model shock wave propagation through a one-dimensional system. We implement ideas of control volume on a MD framework ...

Development of a Two Dimensional, Optically Accessible, Hybrid Rocket Motor 

Boyle, Sadie (2019-09-06)
Traditionally, launch vehicles and in-space vehicles use solid rocket motors (SRM) and liquid rocket engines (LRE) to propel them into and through space. However, there are many drawbacks to both propulsion systems. Hybrid ...

Development of an Occupant and Vehicle Interaction Simulation 

Jarmulowicz, Marc (2007-12-15)
The focus of this thesis was on performing a non-linear, transient occupant and structure interaction simulation. A finite element model was created of the Auburn University 2005 Baja SAE vehicle in combination with an ...

Development of an Optically Accessible High-Pressure Strand Burner and the Experimental Determination of the Burn Rate of High Temperature Thermally Degraded HTPB/AP/AL Solid Propellant Combustion 

Phillips, Matthew (2020-08-18)
This thesis presents initial findings from solid propellant experiments using thermally degraded hydroxyl-terminated polybutadiene, ammonium perchlorate, and aluminum powder propellants. Currently, a better understanding ...

Development of Metal 3D-Printed Helium-Filled Soap Bubble Nozzles 

Swiney, Paul (2020-11-20)
Particle Image Velocimetry (PIV) is a useful flow visualization technique to obtain instantaneous velocity measurements of a fluid. The use of traditional tracer particles for PIV measurements is limited to small field of ...

Development of Self-Degrading 3D Printed Polymer Matrix Composites via Moisture Absorption Evaluation 

Banjo, Adedotun (2020-07-15)  ETD File Embargoed
Polymer degradation is a change in properties such as strength, color, shape, of a polymer or polymer-based material due to the effect of one or more environmental factors. These factors include heat, light or chemicals ...

Discretization Error Estimation Using Method Of Nearby Problems: One-Dimensional Cases 

Raju, Anil (2005-12-15)
Discretization error is defined as the difference between the solution of the discretized equation and the exact solution of the original partial differential equation. There are two main goals in this study. The first ...

Dynamic Stability and Control: Methods and Developments 

Heiser McDaniel, Melissa (2017-01-10)
The purpose of this work is to assess the overall usage, evaluation, and understanding of damping derivatives with a focus on accuracy needs and computational efficiency. With the increased usage of neutrally stable and/or ...

Dynamics and Control of Satellite Relative Motion in Elliptic Orbits using Lyapunov-Floquet Theory 

Sherrill, Ryan (2013-04-23)
Rendezvous and proximity operations involving satellites operating near each other have been performed since the Gemini missions. A better understanding of the dynamics of satellites in close proximity could be helpful ...

Dynamics of Secondary Steady State Flows in a Combined Taylor-Couette and Escudier Vortex Breakdown Flow Field 

Waldheim, Jordan (2022-05-10)
Effects of a varying height end-wall on the bifurcation and stability of secondary steady state flows within the annular gap of a Taylor-Couette cell were investigated. Experiments were conducted at four different end-wall ...

Effect of Coordinate Switching on Simulation Accuracy of Translunar Trajectories 

Vautier, Mana (2008-08-15)
This thesis focuses on the effect of round-off error in the accurate simulation of translunar trajectories. The three-body dynamics can be posed in either an Earth-centered (EC) or Moon-centered (MC) frame. In this study, ...