11-20 of 31 results
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An Exploratory Study of General Aviation Visual to Instrument Meteorological Condition Contextual Factors
PI James Hartman
CO-I Mark Friend
The purpose of this dissertation was to bridge the existing literature gap of outdated contextual factor (CF) research through examination and determination of current General Aviation (GA) Title 14 Code of Federal Regulations (CFR) Part 91 visual flight rules (VFR)-into-instrument meteorological condition (IMC) contextual factors. Contextual factors are a multifaceted arrangement of pertinent events or occurrences contributing to pilot accidents in weather-related decision-making errors.
Read moreCategories: Graduate
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An Investigation of Factors that Influence Passengers’ Intentions to Use Biometric Technologies at Airports
PI Kabir Kasim
CO-I Scott Winter
This research investigated the factors that influence passengers’ intentions to choose the use of biometrics over other methods of identification. The current study utilized a quantitative research method via an online survey of 689 persons from Amazon ® Mechanical Turk ® (MTurk) and employed structural equation modeling (SEM) techniques for data analysis. The study utilized the theory of planned behavior (TPB) as the grounded theory, while perceived usefulness and perceived ease of use were included as additional factors that could influence individuals’ intentions to use new technology.
Read moreCategories: Graduate
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The Effects of Carry-on Baggage on Aircraft Evacuation Efficiency
PI Sang-A Lee
Overall, two studies were conducted to provide an outline of the factors that affect and affected by carry-on baggage. Study 1 used an agent-based model, AnyLogic, to simulate the aircraft evacuation model of an A380. The model was validated, and a two-way Analysis of Variance (ANOVA) was conducted to examine the effects of the percentage of passengers evacuating with carry-on baggage and exit selection choices on the total evacuation time. The simulation results suggested that the mean evacuation time for 0% was significantly lower than 50% and 80%. The mean evacuation time for the shortest queue choice was also lower than the closest exit choice. Study 2 used an expanded theory of planned behavior (TPB) to determine the factors that affect passengers’ intentions to evacuate with carry-on baggage. The confirmatory factor analysis (CFA) and structural equation model (SEM) were used to analyze the data. The results indicated that attitude was the significant determinant of passengers’ intention to evacuate with carry-on baggage.
Read moreCategories: Graduate
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The impact of corporate social responsibility communication on corporate reputation
PI Doreen McGunagle
CO-I Dixie Button
The goal of this research project is to analyze the ethics of social media used by U.S. airlines. In particular, how the four major carriers, Southwest Airlines, Delta, United, and American Airlines Group, stack up against each other in terms of privacy and the ethical use of information obtained via social media sites such as Facebook.
Read moreCategories: Faculty-Staff Graduate
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Seaplane design analysis: Focus on structure factor optimization
PI Alberto Mello
CO-I Soham Bahulekar
CO-I Sergio Butkewitshch
CO-I Wesley Queiroz
In this work, a design optimization is being investigated considering possible hydrodynamic and structural advantages aiming to reduce the structure weight factor, with a trade-off between fluid dynamics and structural aspects.
Read moreCategories: Graduate
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Influence of cold expansion and aggressive environment on crack growth in aluminum alloy
PI Alberto Mello
CO-I Christopher Leirer
CO-I Ken Shishino
CO-I Open Position - New students are welcome
This research aims to establish the effect of hole cold expansion on fatigue life of pre-cracked material under aggressive environment.
Read moreCategories: Graduate
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Damage Control Measures in Composites: Focus on Damage Tolerance of Aerospace Structures
PI Alberto Mello
CO-I Kais Jribi
CO-I Doug Neill (C.E.S. LLC)
CO-I Jon Gosse (C.E.S. LLC)
The focus of this research is to provide advanced methods and tools to address damage tolerance in composite structure
Read moreCategories: Graduate
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Bird Strike - The Effect of the Leading Edge Radius on the Behavior of the Bird Upon Impact
PI Alberto Mello
CO-I Kiran Kumar Avula
CO-I James Pembridge
This project is in partnership with Gulfstream Aerospace Corporation under MMSE program.
Birds pose a major threat to aviation. Bird impact can lead to significant damage of the aircraft and can be sometimes catastrophic. For a damage tolerant design of an aircraft structure, the structure has to fulfill the airworthiness specifications prescribed by FAA or EASA.
Read moreCategories: Graduate
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Flutter Analysis of an Uninhabited Aerial Vehicle
PI Claudia Moreno
CO-I Said Hamada
The aerodynamic advantages of high aspect ratio flexible wings, such as improved performance and lower fuel consumption, are being exploited to develop autonomous aircraft for intelligence, surveillance and reconnaissance missions. These light-weight, high-altitude, long-endurance vehicles with large wing span exhibit high flexibility and significant deformation in flight leading to increased interaction between the aerodynamics and structural dynamics. This phenomenon, called flutter, occurs as the aircraft wing torsion mode decreases with airspeed and interacts with the wing bending mode. The interaction can lead to poor handling qualities and may result in dynamic instability. Hence, a detailed study of these dangerous interactions is required to guarantee the structural safety of the aircraft.
Read moreCategories: Graduate
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Predicting Pilot Misperception of Runway Excursion Risk Through Machine Learning Algorithms of Recorded Flight Data
PI Edwin Odisho
CO-I Dothang Truong
The research used predictive models to determine pilot misperception of runway excursion risk associated with unstable approaches. The Federal Aviation Administration defined runway excursion as a veer-off or overrun of the runway surface. The Federal Aviation Administration also defined a stable approach as an aircraft meeting the following criteria: (a) on target approach airspeed, (b) correct attitude, (c) landing configuration, (d) nominal descent angle/rate, and (e) on a straight flight path to the runway touchdown zone. Continuing an unstable approach to landing was defined as Unstable Approach Risk Misperception in this research. A review of the literature revealed that an unstable approach followed by the failure to execute a rejected landing was a common contributing factor in runway excursions.
Read moreCategories: Graduate
11-20 of 31 results