The Implementation Of Opportunistic Multiple Spacecraft Per Antenna Concepts On The Msu-Sta Deep Space Station 17,
2018
Morehead State University
The Implementation Of Opportunistic Multiple Spacecraft Per Antenna Concepts On The Msu-Sta Deep Space Station 17, Murphy C. Stratton
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science, Morehead State University in partial fulfillment of the requirements for the Degree Master of Science by Murphy C. Stratton on April 30, 2018.
Thermal Freetop: A Free Open-Source Spacecraft Thermal Analysis Software Package,
2018
Morehead State University
Thermal Freetop: A Free Open-Source Spacecraft Thermal Analysis Software Package, Yu Tso
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science Morehead State University in partial fulfillment of the requirements for the Degree Master of Science by Yu Tso on April 30, 2018.
Investigation Of Deep Neural Network Image Processing For Cubesat Size Satellites,
2018
Morehead State University
Investigation Of Deep Neural Network Image Processing For Cubesat Size Satellites, Adam D. Braun
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science at Morehead State University in partial fulfillment of the requirements for the Degree Master of Science by Adam D. Braun on April 30, 2018.
Multipurpose Glider-Quadcopter Uas,
2018
Kennesaw State University
Multipurpose Glider-Quadcopter Uas, Cody Delarosa, Lucas Richards, Ty Hilton
Senior Design Project For Engineers
The goal for this design was to develop a dual stage UAS that will deliver medical supplies to people in need in remote locations. To accomplish this, a quadcopter was designed to release a glider with the payload therein. A scaled down prototype was produced for analysis purposes. A conceptual model was fully designed that is capable of effectively taking off vertically, accelerating to a desired velocity, releasing the glider, and returning back to the initial takeoff location. The glider was designed to be fully controllable in order to accurately reach the desired location. System aerodynamics and quadcopter propulsion were …
The Controversial F-35 Joint Strike Fighter: America's Most Expensive Weapons System And Its Global Impact,
2018
Purdue University
The Controversial F-35 Joint Strike Fighter: America's Most Expensive Weapons System And Its Global Impact, Bert Chapman
Libraries Faculty and Staff Creative Materials
Provides an overview on the F-35 Joint Strike Fighter (JSF) program involving the U.S. and many allied countries. Describes the costs of this program, the technical problems it has experienced, its economic impact on the U.S. and allied countries, the JSF's operational capabilities, potential combat scenarios in which it could be used, and the campaign finance impact aerospace companies and unions have in the electoral process.
Model-Assisted Probability Of Detection Of Flaws In Aluminum Blocks Using Polynomial Chaos Expansions,
2018
Missouri University of Science and Technology
Model-Assisted Probability Of Detection Of Flaws In Aluminum Blocks Using Polynomial Chaos Expansions, Xiaosong Du, Leifur Leifsson, Robert Grandin, William Meeker, Ronald Roberts, Jiming Song
Mechanical and Aerospace Engineering Faculty Research & Creative Works
Probability of detection (POD) is widely used for measuring reliability of nondestructive testing (NDT) systems. Typically, POD is determined experimentally, while it can be enhanced by utilizing physics-based computational models in combination with model-assisted POD (MAPOD) methods. With the development of advanced physics-based methods, such as ultrasonic NDT testing, the empirical information, needed for POD methods, can be reduced. However, performing accurate numerical simulations can be prohibitively time-consuming, especially as part of stochastic analysis. In this work, stochastic surrogate models for computational physics-based measurement simulations are developed for cost savings of MAPOD methods while simultaneously ensuring sufficient accuracy. The stochastic …
Numerical Simulation Of A High Strain Rate Biaxial Compression Apparatus,
2018
Washington University in St. Louis
Numerical Simulation Of A High Strain Rate Biaxial Compression Apparatus, Michael Lagieski
McKelvey School of Engineering Graduate Student Theses & Dissertations
Few experimental methods today are capable of exploring the strength of materials at high strain rates (105 s-1). Those that are capable, such as the Split Hopkinson Bar, Taylor Anvil and Plate Impact suffer from instability and are generally limited to one dimensional wave propagation. Of particular interest is material response under biaxial compression, similar to that seen in inertial confinement fusion. Laser fusion fuel pellets typically undergo large strain rates as well as plastic deformation and non-linear behavior. This work briefly outlines an experimental procedure designed to replicate these large strain rates under biaxial compression using …
Design Of An Electric Propulsion Thruster Breakout Box System,
2018
Western Michigan University
Design Of An Electric Propulsion Thruster Breakout Box System, Ryan Powers
Honors Theses
When performing experiments in the Aerospace Laboratory for Plasma Experiments (ALPE), creating test setups and working with electrical equipment can become dangerous and tedious. A breakout box was required that ensures the ability to troubleshoot electrical problems, decrease the time needed to reconfigure equipment for an experiment, and decrease the potential for a safety hazard. The goal was to design a box that would house most of the equipment necessary to easily obtain current and voltage data from experiments in a safe, reliable manner. Three primary electrical components used in the circuit of the box were the current sensor, the …
Electromagnetic Radiation Shield For Spacecraft,
2018
Western Michigan University
Electromagnetic Radiation Shield For Spacecraft, Oseas Hudy-Velasco
Honors Theses
To protect astronauts from high-energy radiation during long-duration missions, an electromagnetic radiation shield was designed and sized for the Orion spacecraft with physical dimensions at a 1:100 scale and magnetic fields and particle energies at a ∼1:10833.3 scale. The electromagnetic radiation shield was simulated in the multi-physics software Comsol using the Magnetic Fields and Particle Tracing modules. The scale model used a DC amperage of 60 A with a 9-turn solenoid wound in three layers and the full-size system used a DC amperage of 6500 A and a 5-layer solenoid of 390 turns per layer. These models generated magnetic fields …
Land, Air, Sea, Rover (Lasr) - Unmanned Vehicle,
2018
Western Michigan University
Land, Air, Sea, Rover (Lasr) - Unmanned Vehicle, Gabriel Prescinotti Vivan
Honors Theses
This senior design project encompassed the optimization of a previously built quadcopter, as well as the design of new components for additional functions and increased range of operations. The previous vehicle was designed to operate as a helicopter, land rover, and submarine. Although the vehicle operates successfully in these three environments, it is not very successful on transitioning between them, i.e. cannot take off from underneath water. This year’s project goals included optimizing the current vehicle so that it could transition seamlessly between its functions and adding an additional function: to be able to rover at the bottom of a …
The Water Entry Of Multi-Droplet Streams And Jets,
2018
Utah State University
The Water Entry Of Multi-Droplet Streams And Jets, Nathan B. Spiers, Zhao Pan, Jesse Belden, Tadd T. Truscott
Mechanical and Aerospace Engineering Faculty Publications
Water entry has been studied for over a century, but few studies have focused on multiple droplets impacting on a liquid bath sequentially. We connect multi-droplet streams, jets and solid objects with physical-based scaling arguments that emphasize the intrinsically similar cavities. In particular, the cavities created by the initial impact of both droplet streams and jets on an initially quiescent liquid pool exhibit the same types of cavity seal as hydrophobic spheres at low Bond number, some of which were previously unseen for jets and droplet streams. Low-frequency droplet streams exhibit an additional three new cavity seal types unseen for …
Algal Biofuel: The Future Of Green Jet Fuel In Air Transportation,
2018
Embry-Riddle Aeronautical University
Algal Biofuel: The Future Of Green Jet Fuel In Air Transportation, Rajee Olaganathan
Publications
The aviation industry is one of the major contributors for the greenhouse gases. As air travel has become inevitable in this modern era, and fossil fuel usage is not sustainable, it is essential to produce renewable fuel and commercialize it to reduce the greenhouse gas emissions. In order to produce an alternate aviation biofuel a lot of industrial and academic collaborations have been developed worldwide. The main concern of this collaborative research is to produce aviation biofuel from renewable resources with low environmental impacts, and which is sustainable at an economically viable price. This mini-review briefly discusses the biotechnological approaches …
Overview Of The Saber Mission And Launch Vehicle Design,
2018
University of Alabama in Huntsville
Overview Of The Saber Mission And Launch Vehicle Design, Benjamin Thompson, Jared Fuchs, Grant Randsell, William Hankins, Oakley Copeland, Logan Anderson, Austin Mills, Matt Fletcher, Roman Benetti
Research Horizons Day Posters
No abstract provided.
How Does Spaceflight Affect The Detachment Of Zinc Whiskers?,
2018
University of Alabama in Huntsville
How Does Spaceflight Affect The Detachment Of Zinc Whiskers?, Kayla Capitan
Research Horizons Day Posters
No abstract provided.
Measurement Of Forces On A Flapping Wing Micro Aerial Vehicle,
2018
University of Alabama in Huntsville
Measurement Of Forces On A Flapping Wing Micro Aerial Vehicle, Darnisha Crane
Research Horizons Day Posters
No abstract provided.
An Exploration Of The Optical Detection Of Ionizing Radiation Utilizing Modern Optics Technology,
2018
The University of New Mexico, Sandia National Laboratories
An Exploration Of The Optical Detection Of Ionizing Radiation Utilizing Modern Optics Technology, Sean D. Fournier, Adam Hecht, Cassiano De Oliveira, Jeffrey B. Martin, Richard K. Harrison, Charles Potter
Nuclear Engineering ETDs
Modern ultraviolet (UV) cameras, when combined with UV-transmitting lenses/filter arrangements, can be used to detect radiation dose in air. Ionizing radiation excites nitrogen molecules in ambient air, the resulting decay includes weak emission of ultraviolet photons. Previous work has proven this phenomenon is detectable using highly-sensitive electronically cooled cameras traditionally used in astronomy for low-background imaging. While the ability to detect the presence of radiation (i.e. qualitative measurement) has been demonstrated at Sandia National Laboratories, there are several challenges in correlating images to known dose-fields (quantitative measurement). These challenges include: a low signal to background ratio, interferences due to electronic …
Evaluation Of A Hybrid Reflectance-Based Crop Coefficient And Energy Balance Evapotranspiration Model For Irrigation Management,
2018
University of Nebraska-Lincoln
Evaluation Of A Hybrid Reflectance-Based Crop Coefficient And Energy Balance Evapotranspiration Model For Irrigation Management, J. Burdette Barker, Christopher M. U. Neale, Derek M. Heeren, Andrew E. Suyker
Department of Agricultural and Biological Systems Engineering: Faculty Publications
Accurate generation of spatial soil water maps is useful for many types of irrigation management. A hybrid remote sensing evapotranspiration (ET) model combining reflectance-based basal crop coefficients (Kcbrf) and a two-source energy balance (TSEB) model was modified and validated for use in real-time irrigation management. We modeled spatial ET for maize and soybean fields in eastern Nebraska for the 2011-2013 growing seasons. We used Landsat 5, 7, and 8 imagery as remote sensing inputs. In the TSEB, we used the Priestly-Taylor (PT) approximation for canopy latent heat flux, as in the original model formulations. We also used the …
Clutter Suppression For Bistatic Gmti Using Along-Track Interferometry,
2018
Solid State Scientific Corporation
Clutter Suppression For Bistatic Gmti Using Along-Track Interferometry, Ross Deming, Chad Knight
Space Dynamics Laboratory Publications
An adaptation of along-track interferometry (ATI) clutter suppression signal processing is described for bistatic geometries in which the radar transmitter and receivers fly independently on separate platforms. Despite the more complicated geometry, this approach retains the simplicity and computational efficiency of standard monostatic ATI. Bistatic and multi-static (bistatic plus monostatic) geometries can yield significant performance advantages compared with monostatic in terms of detecting and geo-locating moving ground targets. We present results from simulated multi-static data that validate the ATI technique and illustrate the advantages. If time allows, we will also present results from an experimental flight test in the final …
Ultra Efficient Commercial Transport Challenge- Nasa Design Challenge- X-Jab-Ect,
2018
Kennesaw State University
Ultra Efficient Commercial Transport Challenge- Nasa Design Challenge- X-Jab-Ect, Ramin Abdul, Jacob Beiting, Evan Johnston
Senior Design Project For Engineers
Today’s aircraft require new innovation to be able to produce the same amount of lift, but with the design decrease the amount of drag produced. The X-JAC ECT has the ability and is an innovative airframe to reduce today’s fuel costs. The baseline comparison for the X-JAB is the Boeing 747-400 aircraft, the payload, range, speed, and altitude are the same f or the X-JAB and the 747. Through use of supercritical airfoils, the X-JAB was designed as a blended wing body aircraft to produce more lift while evenly balancing the weight of the aircraft and the payload. Through parametric …
Special Issue: Selected Papers From Idetc 2017,
2018
Johannes Kepler University of Linz
Special Issue: Selected Papers From Idetc 2017, Andreas Mueller, Andrew Murray, Venkat N. Krovi
Mechanical and Aerospace Engineering Faculty Publications
The Mechanisms and Robotics Conference has traditionally provided a vigorous and stimulating international forum for the exchange of technical and scientific information on the theory and practice of mechanical systems. The topical coverage has span areas central to mechanical systems including design (novel mechanisms and robots, synthesis), analysis (kinematics, dynamics, computational approaches, and software systems), applications (from micro-air vehicles, modular robotics, origami applications, medical robotics, to exoskeleton-assistive systems), and educational practices.
