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Characterization of the impulsive jet produced from a dolphin's blowhole
(2020-12)
The health of bottlenose dolphins can be monitored by marine biologists through the analysis of their exhaled breath. Unique concepts to capture this breath in the wild include flying an Unmanned Aerial System (UAS) through ...
Augmented Invariant-EKF designs for simultaneous state and disturbance estimation
(2020-07)
In this thesis, we study Invariant-EKF designs for invariant systems with disturbances. We identify two sets of sufficient conditions that preserve the invariance of systems when additive dynamic disturbances are applied. ...
Coolant passage segmentation influence on regenerative-cooling effectiveness for small spacecraft thrusters
(2020-05)
The purpose of this thesis is to examine the effect of varying the number of cooling passages in a regeneratively-cooled rocket combustion chamber and nozzle analog for a small spacecraft thruster producing 22N (5lbf) ...
Recursive Newton-Euler dynamics and sensitivity analysis for dynamic motion planning
(2020-12)
In this study, sensitivity equations are derived for recursive Newton-Euler dynamics using Denavit-Hartenberg (DH) moving coordinates. The dynamics and sensitivity equations depend on the 3x3 DH rotation matrices. Compared ...
In-situ impregnation of polymer matrix with copper powder during additive manufacturing
(2020-07)
The fillers are used to increase the functional properties of polymer matrix composites (PMCs). Additive manufacturing can be potentially used to tailor the PMCs' properties through customization of the spatial architecture ...
Design, simulation, and construction of a hot-gas bypass chiller for a commercial scale psychrometric coil testing facility
(2020-12)
In recent years, there has been a large effort from industry and researchers to improve the efficiency of HVAC&R systems. At Oklahoma State University (OSU), the Building & Environmental Systems Research Group (BETSRG) has ...
Electrode erosion of an electrical discharge machining drill for aerospace fastener removal
(2020-05)
This paper presents an examination of an electrical discharge machining hand drill system for aerospace fastener removal purposes to define secondary level influence of cut depth, electrode diameter, and fastener material ...
Identification of physical processes via data driven methods
(2020-05)
Extracting governing equations from data can be viewed as reverse engineering of Nature- using data to identify the physical laws/models. This approach is crucial for fields where data is abundant ( such as geophysical ...
Data-driven sparse estimation of nonlinear fluid flows
(2020-05)
Estimation of full state fluid flow from limited observations is central for many practical applications in physics and engineering science. Fluid flows are manifestations of nonlinear multiscale partial differential ...
Development of a software in the loop simulation approach for risk mitigation in unmanned aerial system development
(2020-12)
A common method to reduce risk during the development of new designs is simulation and estimation. The extent to which these simulation and estimation techniques can be relied upon for small Unmanned Aerial Systems (sUAS) ...