2-D Path Planning For Direct Laser Deposition Process,
2010
Missouri University of Science and Technology
2-D Path Planning For Direct Laser Deposition Process, Swathi Routhu, Divya Kanakanala, Jianzhong Ruan, Xiaoqing Frank Liu, Frank Liou
Computer Science Faculty Research & Creative Works
The zigzag and offset path have been the two most popular path patterns for tool movement in machining process. Different from the traditional machining processes, the quality of parts produced by the metal deposition process is much more dependent upon the choice of deposition paths. Due to the nature of the metal deposition processes, various tool path patterns not only change the efficiency but also affect the deposition height, a critical quality for metal deposition process. This paper presents the research conducted on calculating zigzag pattern to improve efficiency by minimizing the idle path. the deposition height is highly dependent …
Hot Air Balloon Navigation,
2010
California Polytechnic State University, San Luis Obispo
Hot Air Balloon Navigation, Dustin Blackwell
Aerospace Engineering
This report describes a program used for navigating a hot air balloon. The program, Balloon_Trip, was written using MATLAB and gives a flight path to follow from a start position to an end position. Balloon_Trip calculates the flight path by taking in wind conditions and then flying through these different winds so as to steer the hot air balloon. The program calculates the flight path by taking into consideration at all times how the wind will propel the balloon while it is rising or falling in elevation. It then takes the most direct and least complicated, if not fastest, …
Bi-Material Attachment Through A Soft Tissue Interfacial System,
2010
Missouri University of Science and Technology
Bi-Material Attachment Through A Soft Tissue Interfacial System, Y. X. Liu, S. Thomopoulos, Victor Birman, J. S. Li, G. M. Genin
Mechanical and Aerospace Engineering Faculty Research & Creative Works
No abstract provided.
A 24ft/7.3m Parabolic Reflector Antenna Performance & Feed Design Analysis,
2010
Morehead State University
A 24ft/7.3m Parabolic Reflector Antenna Performance & Feed Design Analysis, Anthony Shelley
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science & Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Anthony Shelley on November 29, 2010.
The Weather Forecast Fortoday In Space! Exploring Our Space Environment & Satellite Orbits,
2010
Morehead State University
The Weather Forecast Fortoday In Space! Exploring Our Space Environment & Satellite Orbits, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "The Weather Forecast forToday in Space! Exploring our space environment & satellite orbits" from November 17, 2010.
Descent Systems For An Improved And Reusable Gemini Capsule,
2010
University of Alabama in Huntsville
Descent Systems For An Improved And Reusable Gemini Capsule, Heather Pitts
Von Braun Symposium Student Posters
No abstract provided.
Nasa X-Toolss Design Optimization,
2010
University of Alabama in Huntsville
Nasa X-Toolss Design Optimization, David Keeton, Cheryl Rose, Daniel Cervantes, Kelly Green, Justin Chism
Von Braun Symposium Student Posters
No abstract provided.
Aethon Research Rocket, Charger Rocket Works,
2010
University of Alabama in Huntsville
Aethon Research Rocket, Charger Rocket Works, Daniel Cavender, Diana Alsbrook, Leonard French, Jarred Green, Andrew Hiatt, Jarrod Mosteller, Brandon Setayesh, Nathan Toy
Von Braun Symposium Student Posters
No abstract provided.
Mars Sample Return Utilizing The Capabilities Of The Heavy Lift Launch Vehicle,
2010
University of Alabama in Huntsville
Mars Sample Return Utilizing The Capabilities Of The Heavy Lift Launch Vehicle, Matt White
Von Braun Symposium Student Posters
No abstract provided.
Design And Fabrication Of A 1/3 Scale Gemini-Style Capsule,
2010
University of Alabama in Huntsville
Design And Fabrication Of A 1/3 Scale Gemini-Style Capsule, Toshawnka Walker, Jonathan Davis, Brockton Thompson, Ryohsuke Aoki
Von Braun Symposium Student Posters
No abstract provided.
Poias Philoctetes/Okyrhoe Integrated Asteroid Surveyor,
2010
University of Alabama in Huntsville
Poias Philoctetes/Okyrhoe Integrated Asteroid Surveyor, Ian Maddox
Von Braun Symposium Student Posters
No abstract provided.
Formula Sae Preliminary Aerodynamic Design,
2010
University of Alabama in Huntsville
Formula Sae Preliminary Aerodynamic Design, Robert Coates, Matt Wright
Von Braun Symposium Student Posters
No abstract provided.
Noegenetic Io Monitoring Observernimo,
2010
University of Alabama in Huntsville
Noegenetic Io Monitoring Observernimo, William Daniels
Von Braun Symposium Student Posters
No abstract provided.
Space Science From Morehead State University,
2010
Morehead State University
Space Science From Morehead State University, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Space Science from Morehead State University" from October 10, 2010.
Neural Network Burst Pressure Prediction In Composite Overwrapped Pressure Vessels Using Mathematically Modeled Acoustic Emission Data,
2010
Embry-Riddle Aeronautical University
Neural Network Burst Pressure Prediction In Composite Overwrapped Pressure Vessels Using Mathematically Modeled Acoustic Emission Data, Junya Iizuka
Master's Theses - Daytona Beach
The purpose of this research was to predict burst pressures in composite overwrapped pressure vessels (COPV) using mathematically modeled acoustic emission (AE) data. The AE data were collected during hydrostatic burst (hydroburst) testing often 15-inch (380 mm) diameter COP Vs. The data gathered during these tests were filtered in order to remove long duration hits, multiple hit data, and obvious outliers. Based on the duration, energy, and amplitude of the AE hits, the filtered data were classified into the various failure mechanisms of composites using a MATLAB based self-organizing map (SOM) neural network. Previous research has demonstrated that the parameters …
Investigation Of Scaling Effects For A Synthetic Jet Actuator Using High And Low Fidelity Analyses,
2010
Embry-Riddle Aeronautical University
Investigation Of Scaling Effects For A Synthetic Jet Actuator Using High And Low Fidelity Analyses, Amandine Bourlier
Master's Theses - Daytona Beach
This research presents an investigation on the scaling effects for synthetic jet actuators using Ansys-CFX and a Lumped Element Model (LEM). Synthetic jets or zero net mass-flux devices use a vibrating diaphragm to generate an oscillatory flow through a small orifice. A synthetic jet actuator can be used on MAVs as thrust generator or fixed on an airfoil for flow separation control. A Computational Fluid Dynamics (CFD) model was created, using Ansys-CFX, to be validated against referred publications. The use of mesh adaption is discussed. This baseline model was then used to complete a scaling analysis using a set of …
Estimation Of Air Flow Angles Derived From An Inertial Navigation System,
2010
Embry-Riddle Aeronautical University - Daytona Beach
Estimation Of Air Flow Angles Derived From An Inertial Navigation System, Brett Douglas Mather
Master's Theses - Daytona Beach
The purpose of this study is to explore the use of an Inertial Navigation System as a primary method for measuring aircraft air flow angles in flight testing. The traditional methods used to measure air flow angles consist of sensors external to the aircraft, such as an air data boom or an angle of attack probe. The advantage of using INS to measure air flow angles would be in the simplicity of the instrumentation. All components could be fixed internally, leaving minimal external modifications to the aircraft necessary for instrumentation. This would reduce costs and instrumentation time and enable air …
Defining An Abrasion Index For Lunar Surface Systems As A Function Of Dust Interaction Modes And Variable Concentration Zones,
2010
University of Colorado Boulder
Defining An Abrasion Index For Lunar Surface Systems As A Function Of Dust Interaction Modes And Variable Concentration Zones, Ryan L. Kobrick, David M. Klaus, Kenneth W. Street Jr.
Publications
Unexpected issues were encountered during the Apollo era of lunar exploration due to detrimental abrasion of materials upon exposure to the fine-grained, irregular shaped dust on the surface of the Moon. For critical design features involving contact with the lunar surface and for astronaut safety concerns, operational concepts and dust tolerance must be considered in the early phases of mission planning. To systematically define material selection criteria, dust interaction can be characterized by two-body or three-body abrasion testing, and sub-categorically by physical interactions of compression, rolling, sliding and bending representing specific applications within the system. Two-body abrasion occurs when a …
Optimization And Oscillation Of A Two-Dimensional Bump To Enhance Airfoil Performance,
2010
Old Dominion University
Optimization And Oscillation Of A Two-Dimensional Bump To Enhance Airfoil Performance, Dinesh Atchala
Mechanical & Aerospace Engineering Theses & Dissertations
The objective of this project is to improve the aerodynamic performance of an aircraft in transonic speed using a two dimensional contour bump. A natural laminar flow airfoil, RAE5243, has been chosen for the validation case to demonstrate the adequacy of the flow solver used in this study. 2D contour bump is parameterized as the bump position via airfoil, the crest position via bump, maximum height and length of the bump for the parametric study. After these studies, one of the gradient based optimization techniques is utilized to optimize the 2D bump parameters to achieve an augmentation in lift-to-drag …
Fault-Injection Experiment For The Statistical Characterization Of Faults In Avionics Communication System,
2010
Old Dominion University
Fault-Injection Experiment For The Statistical Characterization Of Faults In Avionics Communication System, Amy M. Yates
Electrical & Computer Engineering Theses & Dissertations
Since flight control systems perform safety-critical functions, it is important to understand the possible effects on the closed-loop dynamical system's performance caused by these faults. The purpose of this project is to design the software and hardware needed to add fault-injection and monitoring capabilities to ROBUS-2, a flight communication system. ROBUS-2 is the current version of the fault-tolerant computer communication system used by the Scalable Processor-Independent Design for Enhanced Reliability (SPIDER), a general-purpose fault-tolerant integrated modular architecture (IMA) developed at the NASA Langley Research Center. The major components of SPIDER include processing elements (PEs) to perform calculations, bus interface units …
