Master's Projects

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Master's Projects

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Now showing 1 - 10 of 988

A Progress Report on the Pre-Phase A Design of HyperSat

(Georgia Institute of Technology, 2024-08) Lammens, Robert

The Georgia Tech Space Systems Design Laboratory is currently in the process of developing HyperSat. It is a 12U CubeSat designed to maneuver into a highly eccentric orbit with its periapsis inside the Earth’s upper atmosphere. This will allow the CubeSat to perform its primary function of traveling through the Earth’s upper atmosphere and collecting hypersonic CFD data. This paper details the design progress of the mission as of the end of the Summer 2024 academic semester, including a general overview of the spacecraft’s budgets for mass, volume, and data generation. The communications architecture is laid out with design decisions for the onboard comms hardware, the ground station availability, and the available time to beam down scientific data. Lastly, some brief observations on how the design of the CubeSat may affect the post-launch spacecraft operations procedures are provided.
Proposal for a Space Systems Design Lab Multi-Mission Operations Center

(Georgia Institute of Technology, 2024-08) Merrell, Bryn H.

This paper outlines the difficulties of building an integrated multi-mission operations center for Georgia Institute of Technology’s Space Systems Design Lab (SSDL) and provides recommendations for future growth. The two main categories to address are human and technical factors. For human factors, changes in documentation and social structure are proposed to reduce the loss of knowledge as students graduate, and changes to onboarding and networking are proposed to quicken student growth. On the technical side, Ground Data Systems (GDS) and cybersecurity optimizations can be adapted to work on multiple missions. Also, from previous work on Lunar Flashlight and VISORS, general lessons learned in each catagory can improve the MOC workflow. The SSDL has had great success in Mission Ops and has the potential to transition into multi-mission operations.
Emerging Perspectives and Policy Considerations for Advancing Disaster Resilience

(Georgia Institute of Technology, 2024-07) Cabrera, Leah

This paper explores the potential economic impacts of weather-related disasters on low-to-moderate-income communities in the Southeast, including Alabama, Florida, Georgia, and parts of Louisiana, Mississippi, and Tennessee. These communities have been grappling withsignificant economic disruptions due to severe and recurring weather events like hurricanes, floods, and extreme heat. The study involvesasurveyand interviews conducted with professionals in the Southeast who engage with these communities across nonprofit, public, and private organizations.These experts provided insights into how weather-related risks impact the communities they serve.The findings underscore the urgency of addressing housing insecurity as a major obstacle to resilience efforts, particularly for lower-to-moderate-income (LMI) communities. The shortage of affordable, resilient housing creates ongoing vulnerability. Addressing these systemic barriers is not just important butessential for building equitable and resilient communities capable of withstanding climate change. Efforts to support LMI communities and communities of color in preparing for and recovering from weather-related economic setbacks are crucial.Real estate, policy, and development leaders should integrate community-based solutions, promoting shared resources and collective ownership. Reducing dependency on traditional property norms is vital for fostering environments where housing is both an asset and a fundamental right.
Optimizing the Time Between Reaction Wheel Desaturation Maneuvers

(Georgia Institute of Technology, 2024-06) Mayfield, Malachi ; Romero-Calvo, Àlvaro

Spacecraft equipped with reaction wheels require momentum management as part of nominal on-orbit operations. When chemical thrusters are used for dumping momentum, the maneuver may disturb sensitive payload operations. This paper presents an angular momentum management algorithm for planning the optimal desaturation strategy that maximizes the time between maneuvers. The algorithm is derived by applying solutions to the minimum enclosing disk problem to reaction wheel arrays. The algorithm provides a general technique for planning desaturation maneuvers, in contrast to current methods which are either too complex or too mission-specific. Simulation results show that its application can nearly double the time between maneuvers with respect to percentage based desaturation techniques.
Navigating the Privacy Landscape of Large Language Models: Challenges, Technologies, and Policy Directions

(Georgia Institute of Technology, 2024-05-05) Kelklie, Moges

Data privacy has become a key concern of large language models(LLMs), both in the large trove of information they can infer and in the inherent inflexibility of models in forgetting the learned data. LLMs do not have an easy way to delete information; sensitive data could be inferred through prompt engineering, thus raising concerns about data privacy. This article attempts to address the challenge of LLM data privacy and how policy can help mitigate some of the privacy concerns.
Broadway - Front Avenue Connection

(Georgia Institute of Technology, 2024-05-01) Helms, Cloe

Urban Design Project to connect the main street of Broadway and the river front of Columbus, GA.
Shared Use Path Design for User Safety and Experience

(Georgia Institute of Technology, 2024-05) Lake, Connor

The following analysis attempts to explore the following research question: What surface design most effectively reduces user conflict, increases functional active mobility, and encourages user safety on shared use paths? The research question will be answered by 1) exploring different design methods for creating shared use paths that contribute to the goals state in the question via a literature review; 2) attempting to define the culture that surrounds these spaces and a brief investigation of how this culture might be changed/improved; and 3) offering a design solution to spaces experiencing user conflict and travel experience.
Preliminary Assessment of a Pendulum Analogy to Model Low-Gravity Liquid Sloshing

(Georgia Institute of Technology, 2024-05) Feneche, Mathilde

The Apollo Command and Service Module is, along with the Saturn V rocket and the Apollo Lunar Module, one of the three major components of the Apollo program developed by the American space agency, NASA, which took place between 1961 and 1975 and which allowed the United States to send men to the Moon for the first time. The dynamics of the spacecraft’s rigid body and the motion of the propellant, or sloshing, in an ellipsoid tank, are coupled due to the large amount of liquid propellant. The interaction between the spacecraft’s rigid-body dynamics resulting with the sloshing motion leads to an anomalous flight path of the Service Module. This paper seeks to replicate the dynamics of the Service and Command Module separation. It also aims to present a simplified model of the fluid motion in the tank, as a simple pendulum. This analogy provides satisfying results for a certain range of propellant mass values. As the mass increases, model becomes more chaotic and results differ from what should be expected.
Operational Development of Rotating Propulsive Maneuvers for NASA’s Lunar Flashlight Mission

(Georgia Institute of Technology, 2024-05) Jordan, Graham ; Lightsey, E. Glenn

This paper details the processes used for developing rotating propulsive maneuvers for JPL’s Lunar Flashlight cubesat mission as told from the perspective of the mission operations team. The timeline of the Lunar Flashlight mission after launch as well as the early anomalies that spurred work on the rotating maneuver concept are detailed first. An overview of the cumulative progression of implementing the rotating maneuver concept on the spacecraft is further explored. Finally, the operational software, hardware, and procedural tools that were created and utilized to make this development possible are described in-depth, concluding with a detailed description of the implementation of ground-in-the-loop maneuvers.
Georgia Low-Income Housing Tax Credit Program: An Analysis of Neighborhood Benefits in Fulton County, Georgia

(Georgia Institute of Technology, 2024-04-30) Robnik, Hannah

The analysis attempts to quantify the benefits of affordable housing, specifically those created using federal and state LIHTC funds, to demonstrate the success of LIHTC not just in providing affordable housing for Georgians, but in increasing affordable housing resident’s quality of life and ultimately making Georgia a more livable place for all who call it home regardless of income.