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Embry-Riddle Aeronautical University

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Articles 1261 - 1290 of 3305

Full-Text Articles in Engineering

Guest Editorial Special Issue On Toward Securing Internet Of Connected Vehicles (Iov) From Virtual Vehicle Hijacking, Yue Cao, Houbing Song, Omprakash Kaiwartya, Sinem Coleri Ergen, Jaime Lloret, Naveed Ahmad Aug 2019

Guest Editorial Special Issue On Toward Securing Internet Of Connected Vehicles (Iov) From Virtual Vehicle Hijacking, Yue Cao, Houbing Song, Omprakash Kaiwartya, Sinem Coleri Ergen, Jaime Lloret, Naveed Ahmad

Publications

Today’s vehicles are no longer stand-alone transportation means, due to the advancements on vehicle-tovehicle (V2V) and vehicle-to-infrastructure (V2I) communications enabled to access the Internet via recent technologies in mobile communications, including WiFi, Bluetooth, 4G, and even 5G networks. The Internet of vehicles was aimed toward sustainable developments in transportation by enhancing safety and efficiency. The sensor-enabled intelligent automation of vehicles’ mechanical operations enhances safety in on-road traveling, and cooperative traffic information sharing in vehicular networks improves traveling efficiency.


Bird Hazard Mitigation Training For Part 141 General Aviation Pilots: An Experimental Study, Flavio A. C. Mendonca, Richard O. Fanjoy Phd, Thomas Q. Carney Aug 2019

Bird Hazard Mitigation Training For Part 141 General Aviation Pilots: An Experimental Study, Flavio A. C. Mendonca, Richard O. Fanjoy Phd, Thomas Q. Carney

Publications

From 1990 through 2018 ==> 209,950 wildlife strikes in the U.S.,

Approximately 95% of those incidents involved birds;

Seventy aircraft destroyed as a result of wildlife strikes!

13 bird strikes 32 ==> fatalities;

  • 244 wildlife strikes ==> 319 people injured!
  • 224 bird strikes ==>299 people injured!

General aviation community;

  • 97% of the strikes occurred below 3,500 feet AGL;
  • There were 22,775 wildlife strikes ==> 26% caused damage to the aircraft!


Wildlife Hazard Management: An Analysis Of Wildlife Strikes Data From The Five Busiest Airports In Brasil: 2011-2018, Flavio A. C. Mendonca, Julius Keller, Carlos F. G. Schonhardt Aug 2019

Wildlife Hazard Management: An Analysis Of Wildlife Strikes Data From The Five Busiest Airports In Brasil: 2011-2018, Flavio A. C. Mendonca, Julius Keller, Carlos F. G. Schonhardt

Publications

Brasil ==> the largest country in Latin America - 8.514.876 Km²;

Booming aviation industry;

  • From 2008 through 2017 ==>7.1% per year;
  • 104 million passengers in 2018;
  • International destinations – 21.8 million (~20%);
  • U.S. - 4.4 million passengers;
  • Argentina – 3.8 million passengers;
  • Portugal & Chile – 1.7 million passengers;
  • Brazilian Airlines – 38.3%.

Domestic Passengers 200 million in 2030; International Passengers 55 million in 2030.


Feasibility Of Circular Orbits For Proximity Operations In Strongly Perturbed Environments Around Uniformly Rotating Asteroids, Nicholas Peter Liapis Aug 2019

Feasibility Of Circular Orbits For Proximity Operations In Strongly Perturbed Environments Around Uniformly Rotating Asteroids, Nicholas Peter Liapis

Doctoral Dissertations and Master's Theses

Asteroids have been mapped and observed since 1801 when an Italian astronomer Guiseppe Piazzi discovered Ceres (Serio, Manara, & Sicoli, 2002). Since then, asteroids have been growing in popularity throughout the scientific community because they are thought to hold the information we need to understand how the solar system developed and why life exists on earth, as well as potential precious resources. This research studies different types of orbits that have been performed to date around asteroids and how they can be reworked to require less control effort. Different types of missions that have been sent to asteroids are discussed, …


Varying Class Schedules And Learning Effectiveness At Far Part 147 Aviation Maintenance Training Schools (Amts), Kristen Hammer Aug 2019

Varying Class Schedules And Learning Effectiveness At Far Part 147 Aviation Maintenance Training Schools (Amts), Kristen Hammer

Student Works

Of the three learning styles, kinesthetic (hands-on) learning is the most common for individuals (Dinkel, 2011). This is especially relevant for people who work in technical, skill-based fields, such as aircraft maintenance. The hands-on learning style, coupled with a job that requires a great depth of systems knowledge, tool, equipment, and component manipulation, and a multitude of other physical job-related skills, requires that the student maximize his or her knowledge and skill retention while in training. The purpose of this research was to determine if FAR Part 147 Aviation Maintenance Technician School (AMTS) students would achieve more success, as measured …


Advanced Photogrammetric Modeling Of Dranoc Kullas Using Small Unmanned Aircraft Systems, George Gebert, Liam Griffin, Justin Lawlor, Lauren Davis, Kylee Vander Velde, Sami Ali Jul 2019

Advanced Photogrammetric Modeling Of Dranoc Kullas Using Small Unmanned Aircraft Systems, George Gebert, Liam Griffin, Justin Lawlor, Lauren Davis, Kylee Vander Velde, Sami Ali

Student Works

Small unmanned aircraft systems (sUAS), also known as drones, offer new capabilities for cultural heritage preservation activities. Student researchers from Embry-Riddle Aeronautical University have applied photogrammetric techniques based upon sUAS captured imagery to assist with historical site documentation and cultural heritage preservation in the Republic of Kosovo. Imagery from three locations -- Isniq, Dranoc and Junik -- highlight this work. Student researchers created georectified orthomosaics and 3D virtual objects. At each of these three locations the object of interest was a type of building known as a kulla. These kullas are fortified homes built for protecting large families and are …


Design Of Personnel Big Data Management System Based On Blockchain, Houbing Song, Jian Chen, Zhihan Lv Jul 2019

Design Of Personnel Big Data Management System Based On Blockchain, Houbing Song, Jian Chen, Zhihan Lv

Publications

With the continuous development of information technology, enterprises, universities and governments are constantly stepping up the construction of electronic personnel information management system. The information of hundreds of thousands or even millions of people’s information are collected and stored into the system. So much information provides the cornerstone for the development of big data, if such data is tampered with or leaked, it will cause irreparable serious damage. However, in recent years, electronic archives have exposed a series of problems such as information leakage, information tampering, and information loss, which has made the reform of personnel information management more and …


Integrating Field Monitoring And Numerical Modeling To 3 Evaluate Performance Of A Levee Under 4 Climatic And Tidal Variations, Xavier A. Rivera-Hernandez, Ghada Ellithy, Farshid Vahedifard Jul 2019

Integrating Field Monitoring And Numerical Modeling To 3 Evaluate Performance Of A Levee Under 4 Climatic And Tidal Variations, Xavier A. Rivera-Hernandez, Ghada Ellithy, Farshid Vahedifard

Publications

Several short-duration and extreme hydraulic loadings impose time-dependent variably saturated seepage conditions on earthen 7 slopes and embankments. Difficulty assigning appropriate input parameters and lack of full-scale validation are among the main factors 8 introducing uncertainty and lack of confidence when performing numerical transient seepage analysis. This case study demonstrates how 9 to effectively use field-monitoring data to improve the numerical analysis of a levee under climatic and tidal variations. The case study 10 includes a silty sand setback levee located near Seattle. An array of tensiometers and soil moisture sensors installed within the levee’s embank11 ment and foundation, along …


Adaboost‑Based Security Level Classifcation Of Mobile Intelligent Terminals, Feng Wang, Houbing Song, Dingde Jiang, Hong Wen Jul 2019

Adaboost‑Based Security Level Classifcation Of Mobile Intelligent Terminals, Feng Wang, Houbing Song, Dingde Jiang, Hong Wen

Publications

With the rapid development of Internet of Things, massive mobile intelligent terminals are ready to access edge servers for real-time data calculation and interaction. However, the risk of private data leakage follows simultaneously. As the administrator of all intelligent terminals in a region, the edge server needs to clarify the ability of the managed intelligent terminals to defend against malicious attacks. Therefore, the security level classification for mobile intelligent terminals before accessing the network is indispensable. In this paper, we firstly propose a safety assessment method to detect the weakness of mobile intelligent terminals. Secondly, we match the evaluation results …


Mass Evacuation Effects On Transportation: A Comparative Analysis, Emily M. Jannace Jul 2019

Mass Evacuation Effects On Transportation: A Comparative Analysis, Emily M. Jannace

Beyond: Undergraduate Research Journal

Mass evacuations have changed greatly in the past two decades. Evacuations such as Louisiana during Hurricane Katrina, Florida during Hurricane Irma, and New York during the 9/11 Terrorist Attacks, Hurricane Sandy, and Hurricane Irene have had significant impacts on future mass evacuations in terms of transportation. This paper takes these methods and analyzes the best approach in given situations based on volume capacity, impact, and cost to make recommendations that can be used by the three previously mention municipalities. With so many different techniques available, it is important to choose the one that moves the most people out of harm’s …


Comparative Analysis Of Small Unmanned Aircraft Systems Operations Manuals, Stephen M. Cigal Jul 2019

Comparative Analysis Of Small Unmanned Aircraft Systems Operations Manuals, Stephen M. Cigal

Student Works

With over 100,000 remote pilots in the United States, individuals and companies are rapidly incorporating unmanned aircraft system technologies into their everyday life and businesses models. The companies that use these technologies must comply with federal and state regulations in order to maintain a safe environment to operate. These operations must also be accepted by the general public. Since the FAA regulations for small unmanned aircraft systems (sUAS) went into effect in 2016, supplemented by additional state and/or local requirements, some companies have generated operations manuals (OM) to ensure consistent, safe flight that meets these requirements. By analyzing the OM’s …


Range Of Motion Evaluation Of A Final Frontier Design Iva Spacesuit Using Motion Capture, Ryan L. Kobrick, Nicholas Lopac, Chase Covello, Benjamin Banner, Theodore Southern, Nikolay Moiseev Jul 2019

Range Of Motion Evaluation Of A Final Frontier Design Iva Spacesuit Using Motion Capture, Ryan L. Kobrick, Nicholas Lopac, Chase Covello, Benjamin Banner, Theodore Southern, Nikolay Moiseev

Publications

Embry-Riddle Aeronautical University’s Spacesuit Utilization of Innovative Technology Laboratory (S.U.I.T. Lab) is focused on improving human performance in spaceflight by concentrating on spacesuit research for intravehicular activities (IVA) and extravehicular activities (EVA). The design and execution of range of motion (ROM) protocols in an experimental setting will provide insight on the functions and restrictions of spacesuits, aiding in current and future designs or modification. The S.U.I.T. Lab worked with Final Frontier Design (FFD) to provide a quantitative analysis protocol for seated arm mobility of their NASA Flight Opportunities Program (FOP) IVA spacesuit. The lab used reflective tracking markers on three …


Longitudinal Analysis Of Perceived And Objective Airline Performance Quality, Kaetlyn Blocker, Javad Gorjidooz Jul 2019

Longitudinal Analysis Of Perceived And Objective Airline Performance Quality, Kaetlyn Blocker, Javad Gorjidooz

Student Works

Commercial air carrier performance is a multivariable function, uniquely and substantially impacted by passenger's perception of negative employee behavior. High industry visibility, coupled with exponential social media growth, has provided the incredible potential to either widen or narrow the perception-performance gap. The present research conducts a rare longitudinal evaluation of objective airline performance quality in contrast with consumer perceptions of perceived airline performance and the dynamic changes occurring therein. Additionally, the implications regarding air carriers facing both objective and perceived performance challenges, as well as implications for the industry as a whole, are discussed. Utilizing nearly 30 years of objective …


Aviation Weather Products In General Aviation : Interpretability And Usability Research Trends, Jacqueline Mcsorley, Jayde King, Beth Blickensderfer Jul 2019

Aviation Weather Products In General Aviation : Interpretability And Usability Research Trends, Jacqueline Mcsorley, Jayde King, Beth Blickensderfer

General Aviation Weather Display Interpretation

  • Introduction
  • Current Study
  • Trends
  • Summary
  • Conclusion


Prediction Of Noise Associated With An Isolated Uav Propeller, Samuel O. Afari Jul 2019

Prediction Of Noise Associated With An Isolated Uav Propeller, Samuel O. Afari

Doctoral Dissertations and Master's Theses

The emergent field of interest in the Urban Air Mobility community is geared towards a world where aerial vehicles are commonplace. This poses the problem of the effects of the radiated noise. The present research presents an in-depth analysis of the noise generation mechanism of a propeller as a mode of propulsion of the said aerial vehicles. Numerical simulation utilizing a Hybrid Large-Eddy Simulation (LES) coupled with Unsteady Reynolds-Averaged Navier-Stokes (RANS) solver, is adopted on an isolated propeller modeled from the commercial DJI Phantom II 9450 propeller. The Spalart-Allmaras one equation turbulence model with rotation/curvature correction is used. The Farassat’s …


Benefits Of Additional Runway Crossings On Parallel Runway Operations, Sergio Ezequiel Taleisnik Jul 2019

Benefits Of Additional Runway Crossings On Parallel Runway Operations, Sergio Ezequiel Taleisnik

Doctoral Dissertations and Master's Theses

As the air transportation industry expands, airports face numerous challenges to manage the increasing traffic. Among these problems, runway crossings are a considerable source of ground traffic inefficiency and risk. Building end-around taxiways are the only strategy to avoid crossings, but these are not always feasible, and therefore airport planners must find alternatives. This study consisted of a simulation over an airport that currently requires a vast amount of its arrivals to go through runway crossings in order to reach the apron; the airport simulation software utilized was the Total Airspace and Airport Modeler (TAAM). The process began with a …


English Language Proficiency And Aviation Safety, Robert Fowler Jr. Jul 2019

English Language Proficiency And Aviation Safety, Robert Fowler Jr.

Student Works

The goal of this research study is to determine if aviation incidents and accidents due to deficiencies in English language proficiency have increased in the last 10 years based on data from the National Aeronautics and Space Administration (NASA) Aviation Safety Reporting System (ASRS). In addition, this study will determine whether deficiencies in English language proficiency have a significant impact on aviation safety. There are currently 184,636 student pilots according to the Federal Aviation Administration Airmen Certification System. Included in this number are 11,776 student pilots with a foreign address (Federal Aviation Administration [FAA], 2019). Findings presented at a NASA …


Spacecraft Trajectory Planning For Optimal Observability Using Angles-Only Navigation, Francisco José Franquiz Jul 2019

Spacecraft Trajectory Planning For Optimal Observability Using Angles-Only Navigation, Francisco José Franquiz

Doctoral Dissertations and Master's Theses

This work leverages existing techniques in angles-only navigation to develop optimal range observability maneuvers and trajectory planning methods for spacecraft under constrained relative motion. The resulting contribution is a guidance method for impulsive rendezvous and proximity operations valid for elliptic orbits of arbitrary eccentricity.

The system dynamics describe the relative motion of an arbitrary number of maneuvering (chaser) spacecraft about a single non-cooperative resident-space-object (RSO). The chaser spacecraft motion is constrained in terms of the 1) collision bounds of the RSO, 2) maximum fuel usage, 3) eclipse avoidance, and 4) optical sensor field of view restrictions. When more than one …


Meshless Modeling Of Flow Dispersion And Progressive Piping In Poroelastic Levees, Anthony Khoury, Eduardo Divo, Alain J. Kassab, Sai Kakuturu, Lakshmi Reddi Jun 2019

Meshless Modeling Of Flow Dispersion And Progressive Piping In Poroelastic Levees, Anthony Khoury, Eduardo Divo, Alain J. Kassab, Sai Kakuturu, Lakshmi Reddi

Publications

Performance data on earth dams and levees continue to indicate that piping is one of the major causes of failure. Current criteria for prevention of piping in earth dams and levees have remained largely empirical. This paper aims at developing a mechanistic understanding of the conditions necessary to prevent piping and to enhance the likelihood of self-healing of cracks in levees subjected to hydrodynamic loading from astronomical and meteorological (including hurricane storm surge-induced) forces. Systematic experimental investigations are performed to evaluate erosion in finite-length cracks as a result of transient hydrodynamic loading. Here, a novel application of the localized collocation …


Using More Frequent And Formative Assessment When Replicating The Wright State Model For Engineering Mathematics Education, Leroy Long Iii, Claudia Morello Jun 2019

Using More Frequent And Formative Assessment When Replicating The Wright State Model For Engineering Mathematics Education, Leroy Long Iii, Claudia Morello

Publications

A mid-sized private university in the Southeast has created an experimental first-year engineering course based on the Wright State Model for Engineering Mathematics Education. The course aims to increase student retention, motivation and success in engineering through an application-oriented, hands-on introduction to engineering mathematics. When compared to the traditional Wright State Model for Engineering Mathematics Education, the new course also focused on student communication (written, oral), teamwork, self-regulated learning and professionalism. The new experimental course also uses more frequent and formative assessment techniques. Faculty used Wright State’s sample homework assignments to provide students’ with formative feedback and Wright State’s sample …


Propulsion System Testing For A Long-Endurance Solar-Powered Unmanned Aircraft, D. Dantsker, Robert Deters, Marco Caccamo Jun 2019

Propulsion System Testing For A Long-Endurance Solar-Powered Unmanned Aircraft, D. Dantsker, Robert Deters, Marco Caccamo

Publications

The increase in popularity of unmanned aerial vehicles (UAVs) has been driven by their use in civilian, education, government, and military applications. However, limited on-board energy storage significantly limits flight time and ultimately usability. The propulsion system plays a critical part in the overall energy consumption of the UAV; therefore, it is necessary to determine the most optimal combination of possible propulsion system components for a given mission profile, i.e. propellers, motors, and electronic speed controllers (ESC). Hundreds of options are available for the different components with little performance specifications available for most of them. In order to determine the …


The Effect Of Electronic Flight Bags In Flight Training On Preflight Skill Development And Aeronautical Decision Making, Shlok Misra, Michele Halleran Jun 2019

The Effect Of Electronic Flight Bags In Flight Training On Preflight Skill Development And Aeronautical Decision Making, Shlok Misra, Michele Halleran

Student Works

This study was designed to evaluate the effects of utilizing Electronic Flight Bags (EFBs) in flight training with emphasis on preflight skill development and Aeronautical Decision Making. The study participants were student pilots or private pilots who used EFBs in flight training and had not logged more than 100 total flight hours. The study utilized a simulation of the preflight process of a Visual Flight Rules cross-country flight in which the participants answered questions related to the flight preparation. Fifty percent of the study’s population completed this survey with the information provided through an EFB and the other 50% sample …


Poster: Life After Sports: Black Males Pursuing Engineering And Related Stem Fields, Leroy L. Long Iii, Robert A. Bennett Iii, Morris R. Council Iii, Mckenna James Jun 2019

Poster: Life After Sports: Black Males Pursuing Engineering And Related Stem Fields, Leroy L. Long Iii, Robert A. Bennett Iii, Morris R. Council Iii, Mckenna James

Publications

This poster summarizes findings and offers recommendations from a research study involving Black males who majored in engineering or a related STEM field and played a collegiate sport. Specifically, the poster highlights ways in which the research participants were able to transition from playing sports to pursuing an engineering or related STEM career. For this particular poster, the presenters focused on the experiences of four Black men. Two of the Black men played college football at historically Black colleges and universities (HBCUs) in the Southeast. Two other Black men ran track at Division 2 (D2) predominantly White institutions (PWIs) in …


Forensic Analysis Of Spy Applications In Android Devices, Shinelle Hutchinson, Umit Karabiyik May 2019

Forensic Analysis Of Spy Applications In Android Devices, Shinelle Hutchinson, Umit Karabiyik

Annual ADFSL Conference on Digital Forensics, Security and Law

Smartphones with Google's Android operating system are becoming more and more popular each year, and with this increased user base, comes increased opportunities to collect more of these users' private data. There have been several instances of malware being made available via the Google Play Store, which is one of the predominant means for users to download applications. One effective way of collecting users' private data is by using Android Spyware. In this paper, we conduct a forensic analysis of a malicious Android spyware application and present our findings. We also highlight what information the application accesses and what it …


Forward Osmosis Flow Rate Differential Using Different Osmotic Agents, John M. Trzinski May 2019

Forward Osmosis Flow Rate Differential Using Different Osmotic Agents, John M. Trzinski

Beyond: Undergraduate Research Journal

Life support is one of the most vital systems flown on manned spaceflight missions. The systems currently used are large, heavy, inefficient, and power consuming in an environment that requires nearly perfect conditions to function. Forward Osmosis (FO) is a form of filtration that uses the natural properties of water and concentration gradients to filter water without the need for any electricity. An experiment was conducted during the Embry Riddle Summer 2018 study abroad to the LUNARES research station in Piła, Poland. This experiment explored how the flow rate of water through a FO filtration system could be affected by …


Safety Culture Awareness In Aviation Maintenance: Foundations To Present, Tori Kobayashi May 2019

Safety Culture Awareness In Aviation Maintenance: Foundations To Present, Tori Kobayashi

Student Works

Safety Culture awareness in aviation maintenance organizations is necessary for the performance of effective maintenance and the safe operation of aircraft. Maintenance organizations that promote a strong culture of safety encourage honesty and integrity within the workplace. The environment where maintenance is performed differs from other aviation related operations. The promotion of safety in maintenance operations has been proven over time in publications written by the earliest pioneer in aviation safety, Jerome Lederer. The awareness of safety culture in aviation maintenance has evolved with the industry to the present day.


Exploring Perceived Usability And Interpretability Of Aviation Weather Products Among Ga Pilots, Jackie Mcsorley, Jayde King, Beth Blickensderfer May 2019

Exploring Perceived Usability And Interpretability Of Aviation Weather Products Among Ga Pilots, Jackie Mcsorley, Jayde King, Beth Blickensderfer

General Aviation Weather Display Interpretation

  • Introduction
  • Results
  • Discussion
  • Current Investigations


Experimental And Computational Analysis Of A 3d Printed Wing Structure, Aryslan Malik May 2019

Experimental And Computational Analysis Of A 3d Printed Wing Structure, Aryslan Malik

Doctoral Dissertations and Master's Theses

Correct prediction of aeroelastic response is a crucial part in designing flutter or divergence free aircrafts within a designated flight envelope. The aeroelastic analysis includes specifically tailoring the design in order to prevent flutter (passive control) or eliminate it by applying input on control surfaces (active control). High-fidelity models such as coupled Computational Fluid Dynamics (CFD) - Computational Structural Dynamics (CSD) can obtain full structural and aerodynamic behavior of a deformable aircraft. However, these models are so large that pose a significant challenge from the control systems design perspective. Thus, the development of an aeroelastic modeling software that can be …


Adaptive Commanding Of Control Moment Gyroscopes With Backlash, Justin G. Bourke May 2019

Adaptive Commanding Of Control Moment Gyroscopes With Backlash, Justin G. Bourke

Doctoral Dissertations and Master's Theses

The existence of backlash in mechanical systems provides significant challenges when attempting to control these systems to a high degree of precision. The imperfect meshing of gear or belt teeth deteriorates the performance of position controllers and tracking of small commands, producing unacceptable steady-state offsets, increased rise and settling times. Agile spacecraft often use control moment gyroscopes (CMGs) equipped with gear trains to efficiently provide torque for the fine attitude adjustments used in docking and precision stabilization maneuvers. A theoretical examination and a practical model is developed to study the effectiveness of both proportional-integral (PI) and model referencing adaptive controllers …


Preliminary Test Predictions For Scale Ram-Air Parachute Testing, Christian A. Guzman Zurita May 2019

Preliminary Test Predictions For Scale Ram-Air Parachute Testing, Christian A. Guzman Zurita

Doctoral Dissertations and Master's Theses

The present thesis proposes a preliminary analysis to predict the aerodynamic performance for experimental tests of ram-air parachutes in a wind tunnel. A scaled experimental test setup is developed for determining the aerodynamic coefficients of lift (𝐶𝐿) and drag (𝐶𝐷) conducted in a wind tunnel. Additionally, a CFD approach where a steady-state parachute shape defined based on experiments, photographs, and literature, is presented. The accuracy of the simulation depends considerably on the ability to resolve the canopy geometry. Therefore, a CAD geometry generation is implemented for flexible control of the canopy structure by implementing design parameters, e.g., chord, span and …