Embry-Riddle Aeronautical University
University of Tennessee, Knoxville
California Polytechnic State University, San Luis Obispo
University of Alabama - Huntsville
Vincent Spada
Kansas State University
Investigation Of Interplanetary Trajectories To Sedna,
2023
University of Tennessee, Knoxville
Investigation Of Interplanetary Trajectories To Sedna, John W. Sarappo Iii, Samuel Brickley, Iliane Domenech, Lorenzo Franceschetti, James E. Lyne
Chancellor’s Honors Program Projects
No abstract provided.
Nonlinear Dynamics Analysis And Control Of Space Vehicles With Flexible Structures,
2023
Embry-Riddle Aeronautical University
Nonlinear Dynamics Analysis And Control Of Space Vehicles With Flexible Structures, Marco Fagetti
Doctoral Dissertations and Master's Theses
Space vehicles that implement hardware such as antennas, solar panels, and other extended appendages necessary for their respective missions must consider the nonlinear rotational and vibrational dynamics of these flexible structures. Formulation and analysis of these flexible structures must account for the rigid-flexible coupling present in the system dynamics for stability analysis and control design. The system model is represented by a flexible appendage attached to a central rigid body, where the flexible appendage is modeled as a cantilevered Euler-Bernoulli beam. Discretization techniques, such as the assumed modes method and the finite element method, are used to model the coupled …
Spray Characterization Of An Unmanned Aerial Vehicle For Agricultural Spraying,
2023
Tekirdag Namik Kemal University, Turkiye
Spray Characterization Of An Unmanned Aerial Vehicle For Agricultural Spraying, Eray Önler, Hasan Berk Özyurt, Mehmet Şener, Sezen Arat, Bülent Eker, İlker Hüseyin Çelen
The Philippine Agricultural Scientist
Sustainability and higher efficiency in crop production are possible with the use of new technologies. The use of unmanned aerial vehicles (UAVs) brings many advantages, both in terms of monitoring agricultural areas and pesticide applications, and allows for early disease and damage detection as well as its application in areas without access to conventional sprayers. This study established parameters for spraying with clean water using a DJI Agras 14 MG-1P (RTK) UAV. Droplet distribution and droplet analyses were examined in the experiments carried out at different heights (1.5, 2.0, and 2.5 m) and flow rates (10, 15, 20, 25, and …
The Impacts Of Advanced Avionics On Degraded Visual Environments,
2023
School of Engineering, Emirates Aviation University, Dubai, UAE
The Impacts Of Advanced Avionics On Degraded Visual Environments, Sultan Naseeb Harib Fairouz Mubarak, Anju Anna Jacob Dr
International Journal of Aviation, Aeronautics, and Aerospace
Degraded visual environments (DVE) such as brownout, sand storms, and night conditions are responsible for accidents and hence losses in the aviation industry. There is a need to develop avionic systems to support pilots when they encounter environmental conditions that compromise their visual capacity. This report discusses the effects of DVEs on aviation, expounds on the advanced avionic systems available and further elaborates how these systems are implemented in countering DVE conditions. The report recommends on how advanced avionics systems have been and are being implemented in aircrafts to support decisions made by pilots flying under degraded visual environments.
Media Streaming In A High-Rate Delay Tolerant Network,
2023
The University of Akron
Media Streaming In A High-Rate Delay Tolerant Network, Kyle Vernyi
Williams Honors College, Honors Research Projects
Audio and video streaming across delay tolerant networks are relatively new phenomena. During the Apollo 11 mission, video and audio were streamed directly back to Earth using fully analog radios. This streaming capability atrophied over time. The gradual conversion to digital electronics contributed greatly to this. Additionally, 21st century space systems face the new requirement of interconnectedness. Delay Tolerant Networking (DTN) attempts to solve this requirement by uniting traditional point to point links into a robust and dynamic network. However, DTN implementations present bottlenecks due to low performance. High-Rate Delay Tolerant Networking (HDTN) is a performance-optimized DTN implementation. This work …
Development And Implementation Of A Novel Resonantly Ionized Photoemission Thermometry Technique For One-Dimensional Measurements,
2022
University of Tennessee, Knoxville
Development And Implementation Of A Novel Resonantly Ionized Photoemission Thermometry Technique For One-Dimensional Measurements, Walker B. Mccord
Doctoral Dissertations
In this work, Resonantly Ionized Photoemission Thermometry (RIPT) is established and validated as a novel, non-intrusive, non-seeded, One-Dimensional (1D) line thermometry technique. The RIPT technique resonantly ionizes a target molecule via REMPI (Resonant Enhanced Multi-Photon Ionization) of selectively chosen rotational peaks within a resonant absorption band. Thus, efficiently ionizing and subsequently exciting local nitrogen molecules either by direct or indirect schemes. The excited nitrogen deexcites through photoemissions of the first negative band of N2+[molecular nitrogen], specifically near 390, 425, and 430nm [nanometers], that is then acquired as a 1D line signal. The signal strength at all transitions …
Gen. Thomas P. Stafford Looks At The Display In The Hallway At Stafford Elementary,
2022
Southwestern Oklahoma State University
Gen. Thomas P. Stafford Looks At The Display In The Hallway At Stafford Elementary, Weatherford Daily News
Articles
Gen. Thomas P. Stafford looks at the display in the hallway at Stafford Elementary, which is named in his honor. His two sons, Stas, right, and Michael look on.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Gen. Thomas P. Stafford Elementary School And Weatherford Stafford Airport Terminal Dedications November 21 & 22, 2022,
2022
Southwestern Oklahoma State University
Gen. Thomas P. Stafford Elementary School And Weatherford Stafford Airport Terminal Dedications November 21 & 22, 2022, Weatherford Daily News
Articles
A collection of photos from the dedications of Stafford Elementary and Stafford Airport Terminal, seen in the November 23rd, 2022 issue of the Weatherford Daily News.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Astronaut Snoopy’S 50-Plus Year History With Nasa,
2022
Southwestern Oklahoma State University
Astronaut Snoopy’S 50-Plus Year History With Nasa, Weatherford Daily News
Articles
"Unknown to many, Snoopy has been working with NASA since the late 1950s"
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Stafford Highlights - Famed Astronaut Returns For 40th Anniversary Of Apollo Mission,
2022
Southwestern Oklahoma State University
Stafford Highlights - Famed Astronaut Returns For 40th Anniversary Of Apollo Mission, Weatherford Daily News
Articles
Above, Lt. Gen. Thomas P. Stafford speaks during the anniversary event in Weatherford December 7, 2012, of Apollo 17.
At top right, Michael, Thomas and Stas Stafford are pictured with Cosmonaut Valery Kubasov during the 40th Anniversary of Apollo 17 December 7, 2012.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Weatherford Stafford Airport Celebrates New Terminal,
2022
Southwestern Oklahoma State University
Weatherford Stafford Airport Celebrates New Terminal, Weatherford Daily News
Articles
The City of Weatherford and Oklahoma Aeronautics Commission will host a special public celebration and ribbon cutting of the new Weatherford Stafford Airport Terminal.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
New Schools Personal For Project Manager,
2022
Southwestern Oklahoma State University
New Schools Personal For Project Manager, Weatherford Daily News
Articles
Gen. Thomas P. Stafford Elementary started construction in 2020, having a hand in building Stafford Elementary and East Intermediate was personal for Project Manager Shawn Bonner.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Local Astronaut May Command U.S.-Russian Flight (Reprint From 1972),
2022
Southwestern Oklahoma State University
Local Astronaut May Command U.S.-Russian Flight (Reprint From 1972), Weatherford Daily News
Articles
EDITOR’S NOTE: this story first appeared in the November 2, 1972, edition of the Weatherford Daily News, 50 years ago today, about Lt. Gen. Thomas P. Stafford’s chance to commence a U.S.-Russian space flight.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Machine Learning To Predict Warhead Fragmentation In-Flight Behavior From Static Data,
2022
Embry-Riddle Aeronautical University
Machine Learning To Predict Warhead Fragmentation In-Flight Behavior From Static Data, Katharine Larsen
Doctoral Dissertations and Master's Theses
Accurate characterization of fragment fly-out properties from high-speed warhead detonations is essential for estimation of collateral damage and lethality for a given weapon. Real warhead dynamic detonation tests are rare, costly, and often unrealizable with current technology, leaving fragmentation experiments limited to static arena tests and numerical simulations. Stereoscopic imaging techniques can now provide static arena tests with time-dependent tracks of individual fragments, each with characteristics such as fragment IDs and their respective position vector. Simulation methods can account for the dynamic case but can exclude relevant dynamics experienced in real-life warhead detonations. This research leverages machine learning methodologies to …
Mitigation Of The Laminar Separation Bubble Using Active Vortex Generators,
2022
University of Alabama in Huntsville
Mitigation Of The Laminar Separation Bubble Using Active Vortex Generators, Hayden Hitt
Summer Community of Scholars Posters (RCEU and HCR Combined Programs)
No abstract provided.
Experiments To Mitigate Flow Recirculation In A Closed Anechoic Chamber Using Mesh Screens As Turbulence Suppressors,
2022
Mississippi State University
Experiments To Mitigate Flow Recirculation In A Closed Anechoic Chamber Using Mesh Screens As Turbulence Suppressors, Tori Kay Wolverton
Theses and Dissertations
The desire to gather acoustic data of a propeller in simulated hover without environmental effects is met with the challenge of recirculating flow in a closed anechoic chamber. Flow recirculation in an anechoic chamber is not ideal because the effects of it being ingested by the rotor cause unsteady loadings on the propeller. This unsteady loading causes vortex noise from the turbulence introduced by the recirculation of the flow. The aim is to study the acoustic signature of a propeller separate from external factors and engine noise. Two different propellers with three different screen combinations were tested in a closed …
Foundations For Finite-State Modelling Of A Two-Dimensional Airfoil That Reverses Direction,
2022
Washington University in St. Louis
Foundations For Finite-State Modelling Of A Two-Dimensional Airfoil That Reverses Direction, Jake Michael Oscar Welsh
McKelvey School of Engineering Theses & Dissertations
Current 3-D finite-state wake models are incapable of simulating a maneuver in which the sign of the free-stream velocity changes direction and the rotor enters its own wake -- as might occur in the case of a helicopter which ascends and then descends. It is the purpose of this work to create a 2-D finite-state wake model which is capable of handling changes in free-stream direction as a precursor to development of a 3-D model that can do the same.
The 2-D finite-state model used for reentry modifications is an existing model created by Peters, Johnson, and Karunamoorthy. By the …
Design And Analysis Of Aircraft Wing,
2022
Department of Aerospace Engineering, SOET, Sandip University, Nashik, Maharastra, INDIA
Design And Analysis Of Aircraft Wing, Prabhat Dixit Graduate Engineer, Vivek Rathod Graduate Engineer, Deshmukh Chetan Pravin Graduate Engineer, Piyush Patil Graduate Engineer
Graduate Research in Engineering and Technology (GRET)
This research develops and analyses a general aviation plane. A preliminary representation of the eventual product is used to start the design process for an airplane. Based on a drawing, a design mission profile is utilized to determine the weight. A more advanced approach is used to estimate weight, which employs calculated performance criteria to produce a more exact weight estimate. The wing design has been demonstrated to be a feasible alternative for a similar general aviation aircraft. When traveling through air or other fluids, a wing is a type of fin that provides lift. Airfoils may be observed on …
Beyond The High Ground: A Taxonomy For Earth-Moon System Operations,
2022
Air Force Institute of Technology
Beyond The High Ground: A Taxonomy For Earth-Moon System Operations, Adam P. Wilmer, Robert A. Bettinger
Faculty Publications
Situational and space domain awareness in the space domain can no longer be confined to that which is found in geosynchronous orbit. International activities—commercial and military—and threats to the planet itself exist and are increasing across the entire Earth-Moon system. This reality requires a new taxonomy to accurately classify space domain awareness missions and better apply resources to and development of the same. This work presents such a taxonomy for the classification of space domain awareness regions.
Experimental And Computational Investigation Of Divergent Thrust Losses In Rocket Nozzles,
2022
Sandip University, MH, INDIA
Experimental And Computational Investigation Of Divergent Thrust Losses In Rocket Nozzles, Vaibhav Arya Graduate Engineer, Anushka Sunil Kapse Post Graduate Student
Graduate Research in Engineering and Technology (GRET)
The nozzle is a critical component of any rocket engine because it transforms high pressure and high temperature (with sluggish net velocity) within the combustion chamber into high velocity but low pressure. Individually, the molecules in the mixed propellants have rapid velocity in the combustion chamber, but directions are randomly pointing in all directions. A convergent-divergent nozzle, also known as a CD nozzle, is fashioned like a tube with two bulging ends and a thin part in the center. This structure/design provides the nozzle with a balanced shape. By turning the flow's heat energy into kinetic energy, the nozzle accelerates …
