School of Aerospace Engineering Theses and Dissertations
Original work in partial fulfillment of a graduate degree in the School of Aerospace Engineering
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Recent Submissions
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P-SEMP: A platform for systems engineering modeling and planning
(Georgia Institute of Technology, 2021-01-19)Systems engineering management and planning has long been a realm dominated by arcane standards, by the weight of years of practice, and by authority. However, with technological advances and the desire to solve socio-technical ... -
Applied Stochastic Optimal Control for Spacecraft Guidance
(Georgia Institute of Technology, 2021-04-30)Optimal control theory has been successfully applied to a wide range of a problems in spacecraft trajectory optimization. Historically, the identification and management of uncertainty in spaceflight applications has been ... -
Enabling Technologies for Autonomous Landing with Robotic Landing Gear
(Georgia Institute of Technology, 2020-04-20)Throughout their history, rotorcraft have proven to be an invaluable tool for accessing landscapes that traditional fixed wing aircraft are unable to reach. Pilots or autonomous flight systems often face the complexity of ... -
An Architecting Methodology for Thermal Management Systems of Commercial Aircraft at the Conceptual Design Phase
(Georgia Institute of Technology, 2021-05-01)An aircraft thermal management system (TMS) is a subsystem to handle the cooling and heating requirements of the whole aircraft. Traditionally, the TMS is architected based on experience. Its impacts on aircraft conceptual ... -
A method for system of systems definition and modeling using patterns of collective behavior
(Georgia Institute of Technology, 2021-05-03)The Department of Defense ship and aircraft acquisition process, with its capability-based assessments and fleet synthesis studies, relies heavily on the assumption that a functional decomposition of higher-level system ... -
Enabling Conceptual Design and Analysis of Cryogenic In-Space Vehicles through the Development of an Extensible Boil-Off Model
(Georgia Institute of Technology, 2021-05-01)This work is motivated by the high degree of uncertainty surrounding early estimates of the propellant losses due to boil-off and the resulting impact to the vehicle design. Typically, the heat entering the propellant tank ... -
Games of Pursuit-Evasion with Multiple Agents and Subject to Uncertainties
(Georgia Institute of Technology, 2021-04-30)Over the past decade, there have been constant efforts to induct unmanned aerial vehicles (UAVs) into military engagements, disaster management, weather monitoring, and package delivery, among various other applications. ... -
Interdisciplinary Space Logistics Optimization Framework for Large-Scale Space Exploration
(Georgia Institute of Technology, 2021-04-28)As low-cost rocket launch technologies and space resource utilization systems emerge, human space exploration is attracting increasing interest from industry, government, and academia. To extend the domain of human activity ... -
An Integrated Framework to Evaluate Off-Nominal Requirements and Reliability of Novel Aircraft Architectures in Early Design
(Georgia Institute of Technology, 2021-04-29)One of the barriers to the development of novel aircraft architectures and technologies is the uncertainty related to their reliability and the safety risk they pose. In the conceptual and preliminary design stages, ... -
Development and Analysis of Finite State Multi-Rotor Dynamic Inflow Models
(Georgia Institute of Technology, 2021-03-31)An analytical finite state multi-rotor dynamic inflow model known as Velocity Potential Superposition Inflow Model (VPSIM) is formulated from first principles. VPSIM superimposes the velocity potentials of each rotor to ... -
Structural Analysis and Optimization of Aircraft Wings Through Dimensional Reduction
(Georgia Institute of Technology, 2021-03-12)Federal Aviation Regulations (FARs) are key drivers of aircraft design. Early-stage aircraft design involves a tight coupling between structural dynamics, aerodynamics, and flight mechanics, with time-dependent loads arising ... -
A METHODOLOGY FOR THE PREDICTION AND ANALYSIS OF PRECURSORS TO FLIGHT ADVERSE EVENTS
(Georgia Institute of Technology, 2021-05-04)Air transportation is known to be the safest mean of transportation nowadays. The drastic improvements in aviation safety since its gain in popularity are undeniably a factor in the industry's growth over the last several ... -
USING A HANDS-ON ROBOTICS PROJECT TO AFFECT SKILL DEVELOPMENT IN A CONTROL ANALYSIS COURSE
(Georgia Institute of Technology, 2021-05-05)This study aims to assess the impact on skill development of a hands-on experimentation and learning device within the undergraduate aerospace control analysis curriculum at Georgia Institute of Technology. The Transportable ... -
Optimal Phasing and Performance Mapping for Translunar Satellite Missions across the Earth-Moon Nodal Cycle
(Georgia Institute of Technology, 2020-01-10)Fast, high-cadence translunar pathfinder missions hold great promise for advancing NASA's scientific observation, prospecting, and technology validation objectives through increased lunar exploration. This research applies ... -
An architecture model of the U.S. air transportation network
(Georgia Institute of Technology, 2019-11-26)For almost a century, the U.S. Air Transportation Network (ATN) has continuously and successfully adapted to its changing environment as if it were a living organism. Today, the complexity of the network encompasses various ... -
Methodology for a Dynamic Assessment of Multiple Aircraft Tethered to a Shared Payload
(Georgia Institute of Technology, 2020-01-10)Vertical Takeoff and Landing (VTOL) aircraft play an important role in our society by accomplishing a wide range of missions. Many concepts have been introduced to increase the maximum speed of helicopters. This characteristic ... -
Multi-Fidelity Reduced-Order Modeling Applied to Fields with Inconsistent Representations
(Georgia Institute of Technology, 2020-12-06)Our ever-increasing capacity for high-performance computing has progressively elevated the role of physics-based simulations in the conceptual and preliminary phases of aircraft design. This virtualization of the early ... -
A Framework for Fan Stage Conceptual Design Under Distortion Induced by Boundary Layer Ingestion
(Georgia Institute of Technology, 2020-12-04)Various tightly integrated aircraft concepts have emerged as a result of aggressive performance goals set forth by various organizations. Most integrated aircraft system configurations exploit the concept of Boundary Layer ... -
Methods for Construction of Surrogates For Computationally Expensive High-Dimensional Problems
(Georgia Institute of Technology, 2020-11-19)Maturation of computational models has increased reliance on numerical simulations for the analysis, and more importantly, design of complex engineered systems. The high accuracy and realism offered by simulation-based ... -
A Refined Potential Theory for the Incompressible Unsteady Subcritical-Reynolds number Flows on Canonical Bluff Bodies
(Georgia Institute of Technology, 2020-11-19)The three main approaches to exploring fluid dynamics are actual experiments, numerical simulations, and theoretical solutions. In classical potential theory, the steady inviscid incompressible flow over a body can be ...
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