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Full-Text Articles in Engineering
Design And Fabrication Of A Polymer Fdm Printer Capable Of Build Parameter Monitoring And In-Sit Geometric Monitoring Via Photogrammetry, Travis Roberts
Design And Fabrication Of A Polymer Fdm Printer Capable Of Build Parameter Monitoring And In-Sit Geometric Monitoring Via Photogrammetry, Travis Roberts
All Theses
Additive manufacturing, or 3D printing, is a complex process that creates free-form geometric objects by sequentially placing material in a location to construct an object, usually as a layer-by-layer process. One of the most widespread methods is Fused Deposition Modeling (FDM). FDM is used in many of the consumer-grade polymer 3D printers available today. While consumer grade machines are cheap and plentiful, they lack many of the features desired in a machine used for research purposes and are often closed-source platforms. Commercial-grade models are more expensive and are also usually closed-source platforms that do not offer flexibility for modifications often …
Med-Drop Pill Dispenser, Cole Pike, Taylor Morris, Christopher Bruni, Jose Gomez
Med-Drop Pill Dispenser, Cole Pike, Taylor Morris, Christopher Bruni, Jose Gomez
Mechanical Engineering
Veterans’ Affairs home care nurses currently spend anywhere from thirty minutes to two hours filling out monthly prescriptions one pill at a time to veterans who are unable to leave their homes. The goal of this project was to create an easy-to-use device that could be left at a patient’s home that nurses could use to quickly and accurately dispense medication into the patient’s monthly pill box.
Multiscale And Multimaterial 3d Printing: Impact Of Feedstock Properties And Processing Parameters On Printed Parts, Kazi Md Masum Billah
Multiscale And Multimaterial 3d Printing: Impact Of Feedstock Properties And Processing Parameters On Printed Parts, Kazi Md Masum Billah
Open Access Theses & Dissertations
Material extrusion additive manufacturing (AM) technology is one of the most commonly used technology to fabricate functional prototypes and end-use application parts with custom design. The evolution of the extrusion technology led this particular AM process to grow in many aspects such as new materials development, new design thinking, fabrication of parts in multiscale length, and manufacturing of monolithic parts with multiple functionalities. The research presented in this Dissertation results in the creation of knowledge in material extrusion AM technology with the length scale of production-grade to large-scale 3D printing machine those were used to enable the fabrication of multimaterial …
Design Of A Cable-Driven Manipulator For Large-Scale Additive Manufacturing, Phillip Chesser
Design Of A Cable-Driven Manipulator For Large-Scale Additive Manufacturing, Phillip Chesser
Masters Theses
Additive manufacturing of concrete is a growing field of research, yet current motion platforms do not offer viable routes towards large scale deployable systems. This thesis presents the design and analysis of a novel cable-driven robot for use in large scale additive manufacturing. The system developed, termed SkyBAAM, is designed to be easily deployable to a construction site for on-site additive manufacturing of buildings and other large structures. The design philosophy behind this system is presented. Analysis of this system first explores the kinematics, and stiffness as a function of cable tension. Analysis of the workspace and singularities is also …
Senior Design Capstone: Using An Engineering Design Process To Create A Sawzall Wobble Fixture For Milwaukee Tools, Tyler Moore
Senior Design Capstone: Using An Engineering Design Process To Create A Sawzall Wobble Fixture For Milwaukee Tools, Tyler Moore
Honors Theses
The overall objective of this design project was to successfully design a fixture to expedite the repairs of Sawzalls at the Milwaukee Tools repairs facility in Greenwood, Mississippi. This project was executed in accordance with guidelines set forth by the Senior Capstone Design class at the University of Mississippi as well as the quality engineers sponsoring the project at Milwaukee Tools. The fixture was created utilizing an engineering design process with the goal of allowing technicians to press two Sawzall wobbles onto an angled Sawzall wobble shaft using an arbor press with just one press. By beginning with a straightforward …
Dynamic Loading Directed Neural Stem Cell Differentiation, Abdullah Revaha Akdemir
Dynamic Loading Directed Neural Stem Cell Differentiation, Abdullah Revaha Akdemir
USF Tampa Graduate Theses and Dissertations
Spinal cord injuries (SCI) are among the biggest challenges for medical and engineering fields in the modern era. Many people experience various accidents every year that cause major irreversible trauma in the spinal cord. Damaged neural cells caused by SCI cannot be regenerated, and patients have to live with pain, spasms, or loss of movement. Stem cell differentiation can be a potential solution to generate enough neurol cells in vitro to apply at the defective region. In this research, the impact of dynamic mechanical stimulation on the differentiation of PC-12 cell lines towards neurol cells was studied. Models to apply …
Printing Parameter Determination And Characterization Of Additively Manufactured Kovar Steel, Will Macgreggor Davidson
Printing Parameter Determination And Characterization Of Additively Manufactured Kovar Steel, Will Macgreggor Davidson
Mechanical Engineering ETDs
Kovar (ASTM F15, UNS K94610) steel has many applications across Sandia National Laboratories but is best known within academia and industry for its glass-to-metal and glass-to-ceramic hermetic sealing capabilities. Successful printing parameters for a Renishaw AM400 to additively manufacture artifacts from Kovar steel powder have been determined. The printed test artifacts have been studied for ultimate tensile strength, density, surface roughness, hardness, bulk composition, and impact toughness. Longer throughput measurements such as porosity, coefficient of thermal expansion, and grain structure studies have been established for future delivery to the research team. Yet another delivery from this thesis research is a …
Design For Additive Manufacturing (3d Printing), Michael O'Donnell, Michael J. Levy
Design For Additive Manufacturing (3d Printing), Michael O'Donnell, Michael J. Levy
Williams Honors College, Honors Research Projects
The goal of this project is to study the performance of a 3D printed mechanical part subjected to topology optimization. A part that is somewhat complex in its load bearing and geometry will be selected. That part will then be designed, finite element analysis will be performed on it to optimize its topology, and then it will be 3D printed and tested. The goal of topology optimization is to either save material cost and/or part weight due to the ability of 3D printing to manufacture parts with complex and obscure geometry.
Design And Testing Of A Feed-Forward Control System For Deployable Vortex Generators Dependent On Angle Of Attack, Solomon B. Whitmire, Christopher J. Chapanar, Kirklin M. Anderson, Nickalus R. Amon, Daniel W. Chech
Design And Testing Of A Feed-Forward Control System For Deployable Vortex Generators Dependent On Angle Of Attack, Solomon B. Whitmire, Christopher J. Chapanar, Kirklin M. Anderson, Nickalus R. Amon, Daniel W. Chech
Williams Honors College, Honors Research Projects
A vortex generator (VG hereafter) is a common feature of an aircraft wing that disturbs the flow on the leading edge of the wing, thus energizing the boundary layer and reducing flow separation. For an aircraft experiencing flow separation, VGs can increase the lift-to-drag ratio of the wing and prevent stall; however, if flow separation isn’t an issue, the unnecessary frontal area of the VGs has the potential to produce parasitic drag. This study seeks to determine whether the use of a deployment system can improve the performance of VG’s by raising or lowering them depending on the angle of …