Browsing Mechanical engineering by Title
Now showing items 178-197 of 431
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Experimental and numerical analysis of abrasive waterjet drilling of brittle materials
(1998)The interaction between abrasive waterjet (AWJ) and brittle materials, as well as lated machining mechanisms, was studied using a hybrid experimental - numerical analysis approach. First, the machineability of ceramic ... -
Experimental and Numerical Methods for Characterization of Impact Damage in Titanium-Graphite Laminates
TiGr (Titanium-Graphite) is a relatively new aerospace material system composed of layers of titanium alloy and graphite-reinforced thermoplastic. This material is in a class of materials called FMLs (Fiber-Metal-Laminates) ... -
Experimental and Numerical Modeling of NOx Formation in Premixed Combustion of Pure and Renewable Liquid Fuels
A jet stirred reactor (JSR) is used to study the effects of fuel type and composition on NOx emissions. The reactor temperature is varied from 1700K to 1900K. Both pure and blended fuels are used in the experiments with ... -
Experimental and Numerical Study of Fatigue Life in Aluminum 6061-T6 under Stochastic Loading
(2013-02-25)Numerically determining fatigue under stochastic vibrations are typically performed use computational intensive transient response models. This research will delve into an alternate less computation intensive method of ... -
Experimental Realization of Deadbeat Control on a Hybrid Model of Legged Locomotion
In this thesis work, I validate the deadbeat controller on a one-legged hopper by experiment, which includes the construction of the test bed, controller build-up, adjustment of dynamics for the controller and experimental ... -
Experimental Studies of the Breakup Dynamics in Turbulent Multiphase Jets
Breakup of a dispersed phase in a turbulent flow is a classical problem in multiphase flow with many applications in industrial and natural processes. Two different problems have been investigated. The first problem focused ... -
Experimental study of active and passive blade pitch control strategies for axial-flow marine current turbines
Cost and reliability remain among the main barriers limiting widespread adoption ofriverine, estuarine, or ocean current turbine power generation. In particular, structural loads are significantly greater than for wind ... -
Experimental Study of Damage and Defect Detection during Drilling of CFRP Composites
(2014-04-30)University of Washington Abstract Experimental Study of Damage and Defect Detection during Drilling of CFRP Composites Eshetu Demissie Eneyew Chair of the Supervisory Committee: Professor Ramulu Mamidala Department of ... -
Experimental study of defects and delaminations produced in abrasive waterjet cutting and drilling of polymer matrix composite.
(2008)The purpose of the work reported in this thesis was to further the investigation of the problem of bending in a circular disk of variable thickness. Many difficulties were encountered in this research arising from the use ... -
Experimental Study of Inertial Particles in Turbulence: Preferential Concentration, Relative Velocity and Droplet Collisions
Wind tunnel experiments are used to investigate the dynamics of small inertial particles (water droplets ≈ 5-150 μm in diameter) in homogeneous, isotropic, slowly decaying grid turbulence (Re_λ ≈ 350, ε ≈ 0.1 m^2/s^3). ... -
Fabrication and Characterization of Nanostructured Oxides for Energy Storage
Materials for energy storage have become increasingly important in the modern world as alternatives to petrochemical energy sources. Although technology such as lithium-ion batteries and solid oxide fuel cells are in ... -
Fabrication, Characterization and Application of PZT-Silane Nano-Composite Thin-Film Sensors and Actuators
Structural health monitoring (SHM) plays a very important role in improving structural safety, preventing catastrophic failures and lowering maintenance costs. Current sensing methods have some limitations, such as being ... -
Facilitating Locking Pin Alignment in Transtibial Amputees via Auto-Retracting Tethered Pin
Transtibial amputees have a variety of suspension systems available to them. One of the more common systems uses a locking pin to create a mechanical connection to their prosthesis. For those using a locking pin, it is ... -
A Failure Analysis Case Study of the Fluid-Structural Interactions on Trashracks
(2012-09-13)A failure analysis investigation was completed on the trashracks at Powerhouse One of Rock Island Dam. The investigation was part of the overall condition assessment and rehabilitation work being performed at the dam. The ... -
Fault detection of rolling element bearings
(2005)The early detection of bearing failure requires methods that are sensitive to impulsive signals and their changes. The difficulty of early bearing defect detection is that the signal component generated by early defect is ... -
Finite Element Modeling of Brain Injury for Performance Evaluation of Football Helmets
Football helmets worn today are primarily designed to prevent skull fracture and irreversible brain injury. In that limited respect, today’s helmets are a success with the frequency of reported football-related skull ... -
Finite Element Modeling of the Foot
Finite element (FE) foot modeling is a useful tool for investigating foot and ankle biomechanics. Such models can provide insight into internal soft tissue behavior of the foot and are ideal for conducting parametric ... -
Flow Mechanotransduction Response in Endothelial Cell Monolayers and Platelets
(2013-07-25)Blood flow through the cardiovascular system forms many spatiotemporally dynamic flow fields. This is due to the naturally pulsatile motion of the cardiac cycle, the inherent elastic behavior of arteries and the collapsibility ... -
Flow-Capacity-Maintaining, Decoupled Conflict Resolution Procedures for Air Traffic Control
This research addresses the design of automated provably-safe en-route Conflict Resolution Procedures (CRP) for Air Traffic Control (ATC). The main issue in ATC today is to deal with the increasing workload on air traffic ... -
Fluid-Structure Interaction and Gyroscopic Sensing in Flapping, Flexing Bio-Inspired Wings
Flying animals use the flexibility of their wings to perform impressive aerodynamic maneuvers that are not yet achievable using engineered systems. Since insects do not possess muscles within their wings, these animals ...