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Nonuniqueness and equivalence in online inverse reinforcement learning with applications to pilot performance modeling
(2023-05)
The focus of this thesis is behavior modeling for pilots of unmanned aerial vehicles.The pilot is assumed to make decisions that optimize an unknown cost functional, which is estimated from observed trajectories using a ...
Impact of vibrations on mobile infrasound sensing and the development of a custom sensor package
(2023-05)
Acoustic frequencies below 20 Hz, referred to as "infrasound", are emitted by various phenomena. Events such as volcanoes, tornadoes, earthquakes, industrial processes, detonations, and bolides, can be analyzed via the ...
Phase evolution, microstructure and wear behavior of al₀.₅cocrfeni₂ high entropy superalloy and al/al₀.₅cocrfeni₂ composites processed using spark plasma sintering
(2023-05)
High Entropy Superalloys (HESA), an extension of high entropy alloys, exhibit excellent high temperature properties with low density, making them a potential replacement for expensive and heavy superalloys and to be used ...
Design and evaluation of a small-scale portable hybrid rocket engine test stand
(2023-05)
This paper presents the design and evaluation of a small, portable hybrid rockettest stand that can accommodate up to a 3-in diameter engine casing. The primary goal
of this study is to determine the most effective way to ...
Experimental investigation into microstructures of aircraft grade balsa shear webs
(2023-05)
Unmanned aerial vehicles (UAVs) typically rely on balsa wood as the primary material for their aircraft structure. While previous research at Oklahoma State University had established basic material properties of aircraft ...
Integration and evaluation of a 180-kw turboprop engine with a turboelectric ground test rig
(2023-05)
This paper presents the integration of a PBS Aerospace 180-kW turboprop engine with a Cessna 172, four seat, 1,090-kg (2,400-lbf) max takeoff weight aircraft for use as a turboelectric ground test rig. The quickly growing ...
Design and validation of a versatile thermomechanical fatigue test system retrofit kit
(2023-05)
This paper presents the design and experimental validation of a low-cost thermomechanical fatigue (TMF) test system that can be retrofitted to a dynamic
load universal test machine with minimal modifications. The motivation ...
Effect of additive-manufactured fuel grain geometry on small-scale hybrid rocket performance
(2023-05)
This paper presents a parametric study of additive-manufactured fuel grain geometry on small-scale hybrid rocket performance. The motivation of this study is to understand and increase hybrid rocket performance to be a ...
Comparative study of small UAS fuel tank fabrication methods
(2023-05)
This paper will discuss the development, manufacturing, and testing of various fuel tanks intended for use in small unmanned aircraft with the intent of limiting weight, cost, and manufacturing complexities. The main goals ...
Parametric optimization of lattice structure heat sinks: An integrated computational and experimental approach
(2023-05)
Lattice structures have frequently been investigated for their unique mechanical and thermal properties and have been optimized for better performance for these characteristics. Their mechanical properties have shown amazing ...