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- Space Vehicles (34)
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- UAV (3)
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- AERO institute (1)
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- Adaptive control (1)
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- Adaptive trajectory tracking algorithm (1)
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- Publication
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- Robert "Bob" Twiggs STEM Education Collection (34)
- Von Braun Symposium Student Posters (4)
- Doctoral Dissertations and Master's Theses (3)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (2)
- International Journal of Aviation, Aeronautics, and Aerospace (2)
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- Master's Theses (2)
- Aviation / Aeronautics / Aerospace International Research Conference (1)
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- Faculty Publications - Biomedical, Mechanical, and Civil Engineering (1)
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- Masters Theses (1)
- Mechanical & Aerospace Engineering Theses & Dissertations (1)
- Mechanical Engineering (1)
- Publications (1)
- Purdue University Press Books (1)
- STAR Program Research Presentations (1)
- School of Computing: Faculty Publications (1)
- Theses and Dissertations--Mechanical and Aerospace Engineering (1)
- Undergraduate Journal of Mathematical Modeling: One + Two (1)
- Publication Type
Articles 31 - 60 of 60
Full-Text Articles in Aeronautical Vehicles
Eps Simulator, Robert J. Twiggs
Eps Simulator, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on the "EPS Similator" on March 24, 2014.
Comm-Using Decibels - Loose Slides, Robert J. Twiggs
Comm-Using Decibels - Loose Slides, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Comm-Using Decibles - Loose Slides" from March 13. 2014.
Overview Of Eps, Robert J. Twiggs
Overview Of Eps, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on an "Overview of EPS" of March 10, 2014.
Communication Protocols, Robert J. Twiggs
Communication Protocols, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Communication Protocols" from March 8, 2014.
Comm-Processing Data, Robert J. Twiggs
Comm-Processing Data, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Comm-Processing Data" from March 3, 2014.
Antennas - Loose Slides, Robert J. Twiggs
Antennas - Loose Slides, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Antennas" from March 2, 2014.
Data Link For Palamede Spacecraft Based On The Orbcomm Constellation As Space Infrastructure, Franco Bernelli-Zazzera
Data Link For Palamede Spacecraft Based On The Orbcomm Constellation As Space Infrastructure, Franco Bernelli-Zazzera
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Franco Bernelli-Zazzera on "Data link for Palamede spacecraft based on the Orbcomm constellation as space infrastructure" from February 21, 2014.
Galileo, The European Global Navigation Satellite System:Status And Challenges, Marco Lisi
Galileo, The European Global Navigation Satellite System:Status And Challenges, Marco Lisi
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Marco Lisi on "Galileo, the European Global Navigation Satellite System:Status and Challenges" from February 20, 2014.
Infrastructure For Planetary Science, Carle M. Pieters
Infrastructure For Planetary Science, Carle M. Pieters
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Carle M. Pieters on "Infrastructure for Planetary Science" from February 20, 2014.
Current Developments In Space Infrastructure: Space Horizons 2014, Mason Peck
Current Developments In Space Infrastructure: Space Horizons 2014, Mason Peck
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Mason Peck on "Current Developments in Space Infrastructure: Space Horizons 2014" from February 20, 2014.
Quasars And Pulsars And Masers (Oh, My!), Michael Hecht
Quasars And Pulsars And Masers (Oh, My!), Michael Hecht
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Michael Hecht on "Quasars and Pulsars and Masers (Oh, my!)" from February 19, 2014.
Pocketqubes: Access To Space Infrastructure For Small Organizations, Robert J. Twiggs
Pocketqubes: Access To Space Infrastructure For Small Organizations, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "PocketQubes: Access to space infrastructure for small organizations" from February 19, 2014.
Pocketqubes: Access To Space Infrastructure For Small Organizations, Robert J. Twiggs
Pocketqubes: Access To Space Infrastructure For Small Organizations, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "PocketQubes: Access to space infrastructure for small organizations" from February 19, 2014.
Comm-Link Equations - Loose Slides, Robert J. Twiggs
Comm-Link Equations - Loose Slides, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Comm-Link Equations" from February 13, 2014.
Computer Data Busses, Robert J. Twiggs
Computer Data Busses, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Computer Data Busses" from February 13, 2014.
Commincations - Deicibel, Robert J. Twiggs
Commincations - Deicibel, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Comminications - Decibel" from February 11, 2014.
Communications - Decibel, Robert J. Twiggs
Communications - Decibel, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Communications - Decibel" from February 11, 2014.
Power Storage & Control: Review With Questions, Robert J. Twiggs
Power Storage & Control: Review With Questions, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Power Storage & Control: Review with Questions" from February 4, 2015.
Nasa Human Exploration Rover Challenge, Estelle Fortes, Aaron Taylor, Caitlin Talerico, Jessica Chow, Jessica Turcios, Johnnie Perry, Joshua Beck, Juana Cecilia Martin-Gonzalez, Lisa Ferguson, Michaela Branscomb, Mo Sabliny, Raeann Vansickle, Sarah Pearson, Sierra Dryer, Zach Henney, Brenda Haven
Nasa Human Exploration Rover Challenge, Estelle Fortes, Aaron Taylor, Caitlin Talerico, Jessica Chow, Jessica Turcios, Johnnie Perry, Joshua Beck, Juana Cecilia Martin-Gonzalez, Lisa Ferguson, Michaela Branscomb, Mo Sabliny, Raeann Vansickle, Sarah Pearson, Sierra Dryer, Zach Henney, Brenda Haven
Aviation / Aeronautics / Aerospace International Research Conference
NASA's Great Moonbuggy Race, held annually in at the Marshall Space Flight Center in Huntsville, Alabama, is an engineering design challenge that asks teams of student engineers to design a human-‐powered vehicle capable of traversing a simulated lunar surface. However, there is an interesCng sCpulaCon in the design of the moonbuggy: it must be able to be transported in a 4x4x4 foot cube, echoing the design constraint faced by the engineers who built the Lunar Roving Vehicles used by the astronauts of the later Apollo missions. The vehicle in this proposal, Ocelot, designed by the Society of Women Engineers at …
Basic Number Sysyems, Robert J. Twiggs
Basic Number Sysyems, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Basic Number Systems" from January 14, 2014.
Sse-122 Satellites & Space Systems, Spring 2014, Robert J. Twiggs
Sse-122 Satellites & Space Systems, Spring 2014, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A syllabus created by Professor Bob Twiggs for Space Science Engineering - Satellites & Space Systems (SSE 122) on January 14, 2014.
Gust Mitigation Of Micro Air Vehicles Using Passive Articulated Wings, Adetunji Oduyela, Nathan Slegers
Gust Mitigation Of Micro Air Vehicles Using Passive Articulated Wings, Adetunji Oduyela, Nathan Slegers
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
Birds and insects naturally use passive flexing of their wings to augment their stability in uncertain aerodynamic environments. In a similar manner, micro air vehicle designers have been investigating using wing articulation to take advantage of this phenomenon. The result is a class of articulated micro air vehicles where artificial passive joints are designed into the lifting surfaces. In order to analyze how passive articulation affects performance of micro air vehicles in gusty environments, an efficient 8 degree-of-freedom model is developed. Experimental validation of the proposed mathematical model was accomplished using flight test data of an articulated micro air vehicle …
A Mobile Self-Leveling Landing Platform For Small-Scale Uavs, Stephen Austin Conyers
A Mobile Self-Leveling Landing Platform For Small-Scale Uavs, Stephen Austin Conyers
Electronic Theses and Dissertations
This thesis presents a semi-autonomous mobile self-leveling landing platform designed to launch, recover and re-launch VTOL UAVs without the need for human intervention. The landing platform is rugged, lightweight and inexpensive, making it ideal for civilian applications that require a base station from which a rotorcraft UAV can be launched and recovered on terrain that is normally unsuitable for UAV operations. This landing platform is capable of self-leveling on rough terrain and inclined slopes, and can autonomously operate in remote locations for extended periods of time using large onboard lithium batteries and wireless communication. This thesis discusses the unique design …
Rocket Flight Path, Jamie Waters
Rocket Flight Path, Jamie Waters
Undergraduate Journal of Mathematical Modeling: One + Two
This project uses Newton’s Second Law of Motion, Euler’s method, basic physics, and basic calculus to model the flight path of a rocket. From this, one can find the height and velocity at any point from launch to the maximum altitude, or apogee. This can then be compared to the actual values to see if the method of estimation is a plausible. The rocket used for this project is modeled after Bullistic-1 which was launched by the Society of Aeronautics and Rocketry at the University of South Florida.
Filtered-Dynamic-Inversion Control For Fixed-Wing Unmanned Aerial Systems, Jon Mullen
Filtered-Dynamic-Inversion Control For Fixed-Wing Unmanned Aerial Systems, Jon Mullen
Theses and Dissertations--Mechanical and Aerospace Engineering
Instrumented umanned aerial vehicles represent a new way of measuring turbulence in the atmospheric boundary layer. However, autonomous measurements require control methods with disturbance-rejection and altitude command-following capabilities. Filtered dynamic inversion is a control method with desirable disturbance-rejection and command-following properties, and this controller requires limited model information. We implement filtered dynamic inversion as the pitch controller in an altitude-hold autopilot. We design and numerically simulate the continuous-time and discrete-time filtered-dynamic-inversion controllers with anti-windup on a nonlinear aircraft model. Finally, we present results from a flight experiment comparing the filtered-dynamic-inversion controller to a classical proportional-integral controller. The experimental results show …
Robust And Adaptive Nonlinear Control Of Limit Cycle Oscillations In Uavs Using Synthetic Jet Actuators, Natalie Ramos Pedroza
Robust And Adaptive Nonlinear Control Of Limit Cycle Oscillations In Uavs Using Synthetic Jet Actuators, Natalie Ramos Pedroza
Doctoral Dissertations and Master's Theses
Limit cycle oscillations (LCO), also known as utter, cause significant challenges in fight control of unmanned aerial vehicles (UAVs), and could potentially lead to structural damage and catastrophic failures. LCO can be described as vibrational motions in the pitching and plunging displacements of an aircraft wing. Even in low Reynolds number (low-Re) fight regimes, LCO can exceed the limiting boundary for safe UAV fight. Further, as practical considerations motivate the design of smaller, lighter weight UAVs, there is a growing need for UAV systems that do not require heavy mechanical actuators (e.g., ailerons). To address this, the use of synthetic …
Development And Operation Of The Pocketqube T-Logoqube, Kevin Zack
Development And Operation Of The Pocketqube T-Logoqube, Kevin Zack
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Kevin Zack titled "Development and Operation of the PocketQube T-LogoQube" from April 22, 2014.
Autonomous Capabilities For Small Unmanned Aerial Systems Conducting Radiological Response: Findings From A High-Fidelity Discovery Experiment, Brittany Duncan, Robin Murphy
Autonomous Capabilities For Small Unmanned Aerial Systems Conducting Radiological Response: Findings From A High-Fidelity Discovery Experiment, Brittany Duncan, Robin Murphy
School of Computing: Faculty Publications
This article presents a preliminary work domain theory and identifies autonomous vehicle, navigational, and mission capabilities and challenges for small unmanned aerial systems (SUASs) responding to a radiological disaster. Radiological events are representative of applications that involve flying at low altitudes and close proximities to structures. To more formally understand the guidance and control demands, the environment in which the SUAS has to function, and the expected missions, tasks, and strategies to respond to an incident, a discovery experiment was performed in 2013. The experiment placed a radiological source emitting at 10 times background radiation in the simulated collapse of …
Fault-Tolerant Trajectory Tracking Of Unmanned Aerial Vehicles Using Immunity-Based Model Reference Adaptive Control, Brenton K. Wilburn
Fault-Tolerant Trajectory Tracking Of Unmanned Aerial Vehicles Using Immunity-Based Model Reference Adaptive Control, Brenton K. Wilburn
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation presents the design, development, and simulation testing of an adaptive trajectory tracking algorithm capable of compensating for various aircraft subsystem failures and upset conditions. A comprehensive adaptive control framework, here within referred to as the immune model reference adaptive control (IMRAC) algorithm, is developed by synergistically merging core concepts from the biologically- inspired artificial immune system (AIS) paradigm with more traditional optimal and adaptive control techniques. In particular, a model reference adaptive control (MRAC) algorithm is enhanced with the detection and learning capabilities of a novel, artificial neural network augmented AIS scheme. With the given modifications, the MRAC …
Control Design And Performance Analysis For Autonomous Formation Flight Experiments, Caleb M. Rice
Control Design And Performance Analysis For Autonomous Formation Flight Experiments, Caleb M. Rice
Graduate Theses, Dissertations, and Problem Reports (ETD)
Autonomous Formation Flight is a key approach for reducing greenhouse gas emissions and managing traffic in future high density airspace. Unmanned Aerial Vehicles (UAV’s) have made it possible for the physical demonstration and validation of autonomous formation flight concepts inexpensively and eliminates the flight risk to human pilots. This thesis discusses the design, implementation, and flight testing of three different formation flight control methods, Proportional Integral and Derivative (PID); Fuzzy Logic (FL); and NonLinear Dynamic Inversion (NLDI), and their respective performance behavior. Experimental results show achievable autonomous formation flight and performance quality with a pair of low-cost unmanned research fixed …