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Full-Text Articles in Mechanical Engineering
Subtalar Fusion Fixture Design And Test, Nathan Ortiz
Subtalar Fusion Fixture Design And Test, Nathan Ortiz
Honors Theses
Subtalar arthrodesis is performed when cartilage in the talo-calcaneal (the ankle) joint is degraded in a patient and there are multiple approaches to this surgery. Using synthetic bone material, fixtures were cast from aluminum, using the process of evaporation pattern casting, and epoxy. This casting was used to grip the calcaneus bone of the foot in order to load it mechanically, simulating different scenarios that would be encountered during walking. The relative displacement of the ankle joint was measured using a digital image correlation (DIC) program that was modified to work in both two- and three-dimensional space. This program can …
Design And Analysis Of A Cold Gas Propulsion System For Stabilization And Maneuverability Of A High Altitude Research Balloon, Mitchell Brownell
Design And Analysis Of A Cold Gas Propulsion System For Stabilization And Maneuverability Of A High Altitude Research Balloon, Mitchell Brownell
Honors Theses
The need for a cold gas propulsion system is crucial to the scientific industry which allows for maneuvering and stabilizing a high altitude research balloon and propose an inexpensive, light weight design that researchers can reproduce. The methodology to the design of this system was based on factors that are all dependent upon one another. The parameters that directed the decisions made throughout this design project was the thrust needed to rotate the unit, and the allowable weight permitted by federal regulations. The frame was designed with a gas storage system, gas transmission system, and nozzle assembly which was integrated …