Aerospace Engineering Commons^™

Study Of Custom Tool Control In Aviation And Aerospace And Selection Of Materials And Manufacturing Process, Ethan C. Rowley

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Business and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Ethan C. Rowley on April 27, 2017.

Providing A Unique Stem Education Opportunity With A Five Day Eleomission, Robert J. Twiggs, Amin Djamshidpour, Matt Craft, Dale Nash, Hank Voss

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint presentation created by Robert Twiggs, Amin Djamshidpour, Matt Craft, Dale Nash, and Hank Voss titled "Providing a Unique STEM Education Opportunity with a Five Day ELEOMission" from April 26, 2017.

Software Requirements Specification For Lunar Icecube, Michael R. Glaser-Garbrick

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science at Morehead State University in partial fulfillment of the requirements for the Degree Master of Science by Michael R. Glaser-Garbrick on April 21, 2017.

Computer Simulation Of The Attitude Of Lunar Icecube During Early Operations And Deployment, Johnathon F. Fitzpatrick

Morehead State Theses and Dissertations

A Thesis Presented to the Faculty of the College of Science Morehead State University in partial fulfillment of the requirements for the degree of Master of Science by Jonathan F. Fitzpatrick on April 21, 2017.

An Evaluation Of The Relationships Between Collegiate Aviation Safety Management System Initiative, Self-Efficacy, Transformational Safety Leadership And Safety Behavior Mediated By Safety Motivation, Daniel Kwasi Adjekum

International Journal of Aviation, Aeronautics, and Aerospace

The study conceptualized Safety Management System (SMS) initiative, self-efficacy, and transformational safety leadership as constructs that relates to safety behavior (measured by safety compliance and safety participation) when mediated by safety motivation using a quantitative approach. Structural equation modeling techniques was used to derive a final measurement model that fit the empirical data and was used to test the study hypotheses. Utilizing a sample of 282 collegiate flight students and instructors from a large public university in the US, a 46-item survey was used to measure respondent’s perceptions on the study variables. The results indicate that perceptions of SMS policy …

2u Cubesat Structural Design And Integration, Yevgeniy Byeloborodov

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science, Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Yevgeniy Byeloborodov on April 18, 2017.

System And Method For Robust Nonlinear Regulation Control Of Unmanned Aerial Vehicles Synthetic Jet Actuators, Vladimir V. Golubev, William Mackunis

Publications

An unmanned aerial vehicle (UAV) is provided with a plurality of synthetic jet actuators and a nonlinear robust controller. The controller compensates for uncertainty in a mathematic model that describes the function of the syn­thetic jet actuators. Compensation is provided by the use of constant feedforward best guess estimates that eliminate the need for more highly computationally burdensome approaches such as the use of time-varying adaptive param­eter estimation algorithms.

System And Method For Robust Nonlinear Regulation Control Of Unmanned Aerial Vehicles Synthetic Jet Actuators, Vladimir Golubev, William Mackunis

Publications

An unmanned aerial vehicle (UAV) is provided with a plurality of synthetic jet actuators and a nonlinear robust controller. The controller compensates for uncertainty in a mathematic model that describes the function of the synthetic jet actuators. Compensation is provided by the use of constant feedforward best guess estimates that eliminate the need for more highly computationally burdensome approaches such as the use of time-varying adaptive parameter estimation algorithms.

Concept Study Of A Reusable Suborbital Launch Vehicle (Rslv), Jared Fuchs, Matthew Haskell, Benjamin Thompson, William Hankins

Research Horizons Day Posters

No abstract provided.

Determining The Translational Velocity Of Flying Objects Using Ultrasonic Sensors, Alex Christley

Research Horizons Day Posters

No abstract provided.

Satellite Sequencing Optimization Using A Genetic Algorithm, Andrew Verstraete

Research and Creative Activities Poster Day

The problem of mission design for a robotic servicing satellite in geosynchronous Earth orbit (GEO) was investigated. A representative set of potential client satellites was selected, and operational needs were randomly assigned based on the average number of GEO retirements, anomalies, and repositioning maneuvers that currently occur each year. An objective function was developed to represent the value of servicing mission sequences, including client fees, time penalties, and operational risk. A genetic algorithm was then used to find sequences of operations on the potential client set that maximized the objective function’s value. Scenarios were analyzed with the database of satellites …

Method And Shear-Driven Micro-Fluidic Pump, Nihad E. Daidzic

Aviation Department Publications

United States Patent Application, Publication Number US 2017/0096990 A1, Publication Date April 6, 2017.

An example includes an apparatus to pump a fluid. The apparatus includes a housing extending along a length defining an elongate interior, an actuator in the housing, conforming to the elongate interior, the actuator including a plurality of lumens, each having a length extending substantially parallel to the elongate interior, each from around 10 to 200 micrometers across and an actuator configured to oscillate the actuator in the actuator housing along the length of the elongate interior with a rate differential between movement in a first …

Powered-Lift Aircraft Category: What Is It?, Nihad E. Daidzic

Aviation Department Publications

FAA Safety Seminar (GL1574995) held at Minnesota State University, Mankato at 18:00 CST on Thursday, April 6, 2017.

Interactions Of A Counter-Rotating Vortex Pair At Multiple Offsets, Kyle Forster, Tracie J. Barber, Sammy Diasinos, Graham Doig

Aerospace Engineering

The interactions between two streamwise vortices were investigated by wind tunnel testing of two NACA0012 vanes at various lateral offsets. One vane was spaced 10 chord lengths (C) downstream of the other, with both at an angle of incidence of 8 degrees and a Reynolds number of 7 x 10⁴. The evolution of the vortex pair was observed until 6.5C behind the downstream vane using Particle Image Velocimetry (PIV). It was found that proximity of the upstream vortex to the downstream vane had a significant effect on the rotational rate of the subsequent vortex pair, with far offset …

A Poet In Space: Identity Construction Through Hybridity, Jonathan Pessant

Thinking Matters Symposium Archive

William Carlos Williams wrote: A poem is a small Machine made of words. Poetry and the STEM fields are no different when each discipline attempts to find meaning in the world, when each creates something beautiful through experimentation. STEM has the scientific method, with inductive and deductive reasoning, and the laws of nature while English has rhetorical style and grammatical structure. With a little imagination, hybridity between these two seemingly different discourses can produce new perspectives within each, and for each. These new perspectives could lead to new questions which would not have been imagined separately. This hybridity may be …

Tracking Characteristics Of Tracer Particles For Piv Measurements In Supersonic Flows, Fang Chen, Hong Liu, Zifeng Yang, Hui Hu

Mechanical and Materials Engineering Faculty Publications

The tracking characteristics of tracer particles for particle image velocimetry (PIV) measurements in supersonic flows were investigated. The experimental tests were conducted at Mach number 4 in Multi-Mach Wind Tunnel (MMWT) of Shanghai Jiao Tong University. The motion of tracer particles carried by the supersonic flow across shockwaves was theoretically modelled, and then their aerodynamic characteristics with compressibility and rarefaction effects were evaluated. According to the proposed selection criterion of tracer particles, the PIV measured results clearly identified that the shockwave amplitude is in good agreement with theory and Schlieren visualizations. For the tracer particles in nanoscales, their effective aerodynamic …

Find Your Center, Nihad E. Daidzic

Aviation Department Publications

No abstract provided.

Satellite Sequencing Optimization And Observational Orbit Determination Using Genetic Algorithms, Andrew W. Verstraete

Masters Theses

The problem of mission design for a robotic servicing satellite in geosynchronous Earth orbit (GEO) was investigated. A representative set of potential client satellites was selected, and operational needs were randomly assigned based on the average number of GEO retirements, anomalies, and repositioning maneuvers that currently occur each year. An objective function was developed to represent the value of servicing mission sequences, including client fees, time penalties, and operational risk. A genetic algorithm was then used to find sequences of operations on the potential client set that maximized the objective function’s value. Scenarios were analyzed with the database of satellites …

Investigating The Potential Of Using Off-Axis 3d Woven Composites In Composite Joints’ Applications, Mohamed Nasr Saleh, Ying Wang, Arief Yudhanto, Adam Joesbury, Prasad Potluri, Gilles Lubineau, Constantinos Soutis

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The effect of circular notch has been evaluated for three different architectures of three-dimensional (3D) carbon fiber woven composites (orthogonal, ORT; layer-to-layer, LTL; angle interlock, AI) through open-hole quasi-static tension and double-lap bearing strength tests in the off-axis (45°) direction. Damage characterization is monitored using Digital Image correlation (DIC) for open-hole testing and X-ray Computed Tomography (CT) for double-lap bearing strength test. The off-axis notched 3D woven composites exhibit minor reduction (less than 10 %) of the notched strength compared to the un-notched strength. DIC strain contour clearly show stress/strain localization regions around the hole periphery and stress/strain redistribution away …

Biomass Cookstoves: An Empirical Study Into The Relationship Between Thermal Efficiency And Tending Practices For The Developing World, Erin Peiffer

Honors Theses

More than 2 billion people in the world use biomass stoves for cooking and heating their homes. Due to incomplete combustion, toxic byproducts such as soot, nitrous oxides and carbon monoxide gasses form. These toxic substances contribute to pollution and can lead to serious health issues over time if inhaled leading to approximately 4 million premature deaths each year. The formation of these toxic substances can be mitigated, in part, through the introduction of increased turbulence intensity allowing for the so-called “well-stirred combustion regime”. Here we will be exploring the health, environmental, and social effects of biomass combustion in the …