Browsing Mechanical engineering by Title
Now showing items 60-79 of 431
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Cable Driven Robots: Hysteretic Cable Stretch, Cable-Pulley Network Friction, Fatigue Life, and Kinematics of Two-Arm Multi Staged Flexible Manipulator
Cable driven mechanisms face control challenges associated with hysteretic response of cable and dynamic friction from guide pulleys due to variable cable tension. In this thesis, a new dynamic models of cable driven ... -
Cadaveric Simulation of Flatfoot and Surgical Corrective Techniques: The Evans versus the Z-osteotomy
(2013-07-25)The main clinical purpose of this study is to compare two different surgical procedures, the Evans calcaneal osteotomy and the Z-osteotomy, both of which are used to correct Stage II (flexible) cases of flatfoot deformity. ... -
Calibration and optimization of a biplane fluoroscopy system for quantifying foot and ankle biomechanics
Joint pain or loss of function manifests in subtle changes in kinematics and the biomechanical behavior of the articulating surfaces, the ligaments, and tendons acting as soft tissue constraints. Understanding the relationships ... -
Capacitive Eye Tracker made of Carbon-Nanotube Paper Composite for Human-Machine Interface and Neuroscience Applications
The uniqueness of eyes, facial geometry, and gaze direction make eye tracking a very challenging technological pursuit. The gold standard for an eye-tracking device has been the scleral search coil system. Despite dominant ... -
Carbon Nanotube-Based Wearable Sweat Sensors; Design and Fabrication
Wearable sweat sensors enable non-invasive diagnosis of various diseases and real-time health monitoring. Few sensors exhibit pH measurement on skin due to interference by sodium chloride ions. This thesis presents a ... -
Certification of Discontinuous Composite Material Forms for Aircraft Structures
New, high performance chopped, discontinuous, or short fiber composites (DFCs), DFCs, such as HexMC and Lytex, made by compression molding of randomly oriented pre-impregnated unidirectional tape, can be formed into complex ... -
Characterization and Control of Electrostatically Assisted Two-Fluid Coaxial Atomization
Multiphysics control of atomization is a promising new area of research that could result in more robust and versatile atomizers, producing a desired range of droplets under a very broad range of operating conditions. This ... -
Characterization and Modeling of the leading edge erosion of Wind Turbine Blades due to Sand Particles Impingement
Harsh environments such as desert and arid environments are showing promising potential for energy production from wind turbine blades. However, when wind turbines are erected in such environments, unavoidable damage due ... -
Characterization of Composite Dust Generated During Milling of Uni-Directional and Random Fiber Composites
As every manufacturer of carbon-fiber composite structures knows, one of the most nettlesome aspects of the production process is that machining, drilling and sanding of carbon fiber composites produces fine dust. These ... -
Characterization of Cutting Forces in Milling of Unidirectional and Random Fiber Composites
There is an ever increasing demand for materials with High strength-weight ratio (Specific strength), corrosion resistance in the current aerospace, automotive and consumer industries apart from other technical applications. ... -
Characterization of Mechanical and Perceptual Properties of the Human To Improve the Design of Wearable Devices
Although wearable devices are rapidly improving in features and ability, their performance and comfort remain poor when they are coupled to the wearer. Issues such as poor anchoring between the device and the body, inefficient ... -
Characterization of Uncertainty and Variability of Freshwater Consumption Impacts in Life Cycle Assessment
(2013-07-25)Life cycle assessment (LCA) provides a standardized protocol for estimating a wide range of life cycle technology impacts. LCA is used to make comparisons between alternative technology systems and to identify opportunities ... -
Closed-Loop Control of a 3D Printer Gantry
The use of closed-loop control to improve performance in gantry robots is a well-established technology, but adding the necessary sensors and computational hardware to low-cost 3D printer gantries has been generally thought ... -
Cohesive Transitions in Decentralized Networks with Delays
This dissertation involves development of controls for cohesive transitions in non-ideal networks with delays. Most existing network control strategies focus on improving the convergence rate of networks to consensus, say ... -
Combustion, Heat Transfer and Soot Formation in Biomass-Burning Cookstoves
Over three billion people in the world rely on biomass for their cooking and heating needs. Indoor cooking using biomass has been identified as a significant contributor to cancer, respiratory illnesses and cardiovascular ... -
Comparing Model Based and Model Free techniques for Underactuated In-hand Manipulation
Compared to their fully actuated counterparts underactuated hands are cheap, lighter and provide stable grasp across variety of objects without feedback. However, underactuated hands are less dexterous for in-hand manipulation ... -
Comparison of Lagrangian Coherent Structures and Relative Dispersion in a Mixing Layer
Lagrangian coherent structures (LCS) and relative dispersion are two widely used tools to study mixing and have been successfully applied to a wide variety of flows. Their computation requires particle advection by numerical ... -
Comparison of Model-Predictive control and PID control for Adaptive Cruise Control of UW EcoCAR vehicle
This work evaluates two control strategies for Adaptive Cruise Control (ACC), classical control (PID control), and Model Predictive Control (MPC) with linear-piecewise approximated engine fuel map as a part of cost function ... -
Comparison of Sooting behavior amongst various Liquid Fuels
Hydrocarbon combustion at fuel – air equivalence ratio (φ) greater than 1 results in incomplete combustion and formation of black flaky substance, soot. Soot is found responsible for health ailments, global warming and ... -
Comprehensive Control Strategies for a Seven Degree of Freedom Upper Limb Exoskeleton Targeting Stroke Rehabilitation
(2013-02-25)In this dissertation control algorithms are developed and tested for the EXO-UL7 towards a control strategy for stroke rehabilitation. EXO-UL7 is a seven degree of freedom (Dof) powered upper limb exoskeleton that was ...