Browsing by Department "Mechanical Engineering"
Now showing items 1-20 of 234
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(2019-12-13)Department: Mechanical EngineeringComputational material models for analyzing aerodynamic loads on metallic supersonic and hypersonic aircraft panels rarely include plastic deformation. In this study, the Multi-Yield Surface Plasticity model is introduced ...
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(2009-12-10)Department: Mechanical EngineeringThere has been considerable research devoted to control and experimental realization of bipedal locomotion with the aim to develop a fully functional humanoid robot. Similar to humans, such a robot should be able to walk ...
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(2005-07-25)Department: Mechanical EngineeringThe purpose of this work is to present a scalable distributed sensor network capable of localizing acoustic sources in the near-field. Traditional sensor networks employ a central controller, however; centralized data ...
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(2014-06-27)Department: Mechanical EngineeringThe use of immersed-boundary methods to solve complex/moving-boundary flow problems, especially those in biofluid dynamics, has been popular in recent years. Such methods typically employ a stationary structured grid, e.g., ...
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(2015-12-02)Department: Mechanical EngineeringOver the last decade, researchers have started exploring the design space of MCR: devices that can operate autonomously within the human body and can diagnose, prevent, monitor, and cure diseases. MCR are miniature ...
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(2012-04-20)Department: Mechanical EngineeringThe aim of this study is to develop a magnetic resonance imaging (MRI) compatible robot to enable image guided interventions to enhance accuracy and reduce invasiveness. MRI provides exquisite soft tissue images, and fluid ...
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(2011-12-21)Department: Mechanical EngineeringThis thesis presents the design and testing of a standing controller for a powered transfemoral prosthesis that is capable of real-time ground slope adaptation and sit-to-stand and stand-to-sit transitions. The controller ...
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(2015-05-21)Department: Mechanical EngineeringAs the second leading cause of cancer death worldwide, gastric cancer is a global issue. Screening programs have had a significant impact on reducing mortality but are unavailable to most people in in low- and middle-income ...
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(2012-03-05)Department: Mechanical EngineeringThis thesis presents the design, implementation and testing of a lower limb exoskeleton that allows paraplegic patients to stand and walk. The device is supplemented with functional electrical stimulation (FES) at the ...
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(2009-07-25)Department: Mechanical EngineeringThe human leg serves as the primary mechanism to provide locomotion and general mobility, both of which require significant power generation at the joints. Today, commercial lower limb prostheses are generally passive ...
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(2022-11-20)Department: Mechanical EngineeringReplication of healthy knee behavior after amputation requires prosthetic knees to provide active and resistive stance behaviors, as well as ballistic and non-ballistic swing behaviors. Current state-of-the-art prosthetic ...
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(2006-12-04)Department: Mechanical EngineeringAn experimental analysis of a novel two-dimensional lid-driven cavity flow is presented. The system that is developed and tested contains six movable boundary sections that can be driven in pairs to generate complex flow ...
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(2022-09-21)Department: Mechanical EngineeringHistorically, the vast majority of prescribed transfemoral prostheses have been passive or modulated passive devices, which is to say that they are from the user’s perspective net energy negative. Such devices have proven ...
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(2019-07-19)Department: Mechanical EngineeringWhile carbon fiber spring prostheses remain the standard in transtibial prostheses, an increasing number of multifunctional prostheses – those that provide different behaviors than a simple spring, such as hydraulic damping ...
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(2018-09-14)Department: Mechanical EngineeringModeling Friction Stir Welding (FSW) has proven elusive over the past two decades since being patented by The Welding Institute in 1991. One promising model developed by Nandan et al. explains material flow through a ...
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(2013-07-26)Department: Mechanical EngineeringMECHANICAL ENGINEERING A STUDY OF THE THERMAL PROPERTIES OF COMMERCIALLY AVAILABLE MULTI-WALLED CARBON NANOTUBES AND GOLD NANOWIRES KYLE OTTE Thesis under the direction of Professor Deyu Li The thermal properties ...
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(2011-07-29)Department: Mechanical EngineeringIn conventional internal combustion engines, valves are opened and closed using a cam surface. The cam is kinematically related to the piston positions through the crankshaft and timing belt. In contrast, there is no ...
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(2022-10-27)Department: Mechanical EngineeringSprings can provide force to assist motor-driven robots or spring-augmented humans at zero net energy cost by recycling mechanical work during motion. However, humans have limited force and range of motion, and motors have ...
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(2020-04-02)Department: Mechanical EngineeringA main way to control the reaction characteristics of an energetic material is through changes in chemical composition. However, with the advancements of additive manufacturing technology, reaction characteristics can now ...
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(2022-05-16)Department: Mechanical EngineeringMuch of the energy consumed by the world’s industrial sectors is lost as waste heat. Concurrently, manufacturing facilities also require vast, valuable quantities of compressed air, air that is most often produced from ...