AE Brown Bag Seminar
Friday, November 17
11:00 a.m. -12:20 p.m.
Guggenheim 442
Pizza will be served
Presenters
Liam Desai
Andrew Fan
Griffin Jourda
Carson Thaler
Liam Desai
Title:
UAV Flight Control Research for Autonomous Landing and Aggressive Maneuvering
Abstract:
I conducted research in the AREAL lab on autonomous vehicles. There were two parts to the research I conducted. The first was a UAV and the second was an UGV. The goal was to get the drone to autonomously land on a moving UGV and recharge. My work focused on the UGV. I learned a lot about control theory and controllers that are commonly used for these types of projects. Specifically, I learned that market controllers offer a lot more benefits than handmade controllers. While the ground vehicle had a custom made controller, my research focused on exploring the development of a control system using PixHawk and PX4.
Advisor.
Dr Jonathan Rogers
Andrew Fan
Title:
System Modeling of the James Webb Space Telescope.
Abstract:
I will be covering my last semester’s research at ASDL using SysML. SysML is designed to support the specification, analysis, design, verification, and validation of complex systems. I will also cover how it is used to model the James Webb Space Telescope
Advisor:
Dr. Dimitri Mavris
Griffin Jourda
Title:
Attitude Determination and Control for the OrCa-2 CubeSat Mission
Abstract:
The OrCa-2 CubeSat mission aims to demonstrate experimental satellite hardware on-orbit and provide a target for the calibration of ground-based telescopes by hosting calibrated optical panels. Due to functional requirements regarding communications budgets, power production, and scientific goals, the satellite requires a robust attitude determination and control system (ADCS). OrCa-2’s ADCS is developed completely by SSDL and is fully integrated with the motherboard of the satellite. For attitude determination, the ADCS utilizes various sensor measurements fused by an extended Kalman filter, and for attitude control the satellite employs various algorithms for controlling magnetic torquers to de-tumble the satellite and point towards the sun. This presentation will detail the development of the OrCa-2 ADCS, including hardware utilized, algorithms flying onboard the satellite, and various testing campaigns employed to validate this hardware and software.
Faculty Advisor: Dr. Brian Gunter
Carson Thaler
Title
Investigating the Emissions of a Lean-Premixed-Prevaporized Combustor for Civil Supersonic Transportation
Abstract
With the renewed interest in civil supersonic transportation (CST), there is a necessity to develop an environmentally sustainable supersonic fleet. A lean-premixed-prevaporized combustor allows for high-speed travel while reducing the harmful emissions associated with burning fuel. However, using a lean air-to-fuel ratio introduces its own complications including unstable flame structures leading to lean blow off. NASA ULI is studying the major phenomena that govern lean blow off by experimentally testing and sampling at relevant supersonic engine conditions. Fuel is introduced at varying axial locations in the premixer to determine the threshold at each condition before blow off occurs. Optical and laser diagnostic techniques such as fuel Planar Laser-Induced Fluorescence (PLIF) and OH chemiluminescence are used to characterize the premier effect on flame structure and engine emissions within the optically accessible combustor. These results will enrich the current understanding of emissions stemming from high-speed aircraft, ensuring a harmonious coexistence between CST and environmental preservation.
Advisor:
Professor Adam Steinberg