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Articles 1 - 11 of 11

Full-Text Articles in Mechanical Engineering

Development And Design Of Constant-Force Mechanisms, Brent Lewis Weight Nov 2002

Development And Design Of Constant-Force Mechanisms, Brent Lewis Weight

Theses and Dissertations

This thesis adds to the knowledge base of constant-force mechanisms (CFMs). It begins by reviewing past work done in the area of CFMs and then develops new nondimensionalized parameters that are used to simplify the calculations required to design a CFM. Comparison techniques are then developed that utilize these non-dimensionalized parameters to compare mechanisms based on stiffnesses, percent constant-force, actual lengths, normal displacements, and feasible design orientations. These comparison techniques are then combined with optimization to define new mechanisms with improved performance and range of capabilities. This thesis also outlines a design process, methods to identify mechanisms that are suitable ...


Elasticity In Microstructure Sensitive Design Through The Use Of Hill Bounds, Benjamin L. Henrie May 2002

Elasticity In Microstructure Sensitive Design Through The Use Of Hill Bounds, Benjamin L. Henrie

Theses and Dissertations

In engineering, materials are often assumed to be homogeneous and isotropic; in actuality, material properties do change with sample direction and location. This variation is due to the anisotropy of the individual grains and their spatial distribution in the material. Currently there is a lack of communication between the design engineer, material scientist, and processor for solving multi-objective/constrained designs. If communication existed between these groups then materials could be designed for applications, instead of the reverse. Microstructure sensitive design introduces a common language, a spectral representation, where both design properties and microstructures are expressed.

Using Hill bounds, effective elastic ...


Flow-Acoustic Coupling Of A Side-Branch Resonator, David R. Hart Jan 2002

Flow-Acoustic Coupling Of A Side-Branch Resonator, David R. Hart

Theses and Dissertations

No abstract provided.


An Investigation Into Electrostatic Water Treatment Systems, C. Alexis Bennett Jan 2002

An Investigation Into Electrostatic Water Treatment Systems, C. Alexis Bennett

Theses and Dissertations

No abstract provided.


Self-Excited Oscillations Of Free - And Bonded-Shear Flow Past A Resonant Cavity, Alis Ekmekci Jan 2002

Self-Excited Oscillations Of Free - And Bonded-Shear Flow Past A Resonant Cavity, Alis Ekmekci

Theses and Dissertations

No abstract provided.


Finite Element Modeling Of Lens Deposition Using Sysweld, Aaron Mengel Jan 2002

Finite Element Modeling Of Lens Deposition Using Sysweld, Aaron Mengel

Theses and Dissertations

No abstract provided.


Ammonia Removal From Fly Ash Using A Continuously Operating Acoustically Assisted Fluidized Bed, Kenneth Bradford Lawton Jan 2002

Ammonia Removal From Fly Ash Using A Continuously Operating Acoustically Assisted Fluidized Bed, Kenneth Bradford Lawton

Theses and Dissertations

No abstract provided.


Spectroscopic Measurements In Flames For Glass Furnace Applications, Michael J. Saeger Jan 2002

Spectroscopic Measurements In Flames For Glass Furnace Applications, Michael J. Saeger

Theses and Dissertations

No abstract provided.


An Investigation Into The Optimization Of Small-Scale Closed Die Cold Forging, Timothy G. Skibitsky Jan 2002

An Investigation Into The Optimization Of Small-Scale Closed Die Cold Forging, Timothy G. Skibitsky

Theses and Dissertations

No abstract provided.


Mechanical Property Of Fused Deposition Parts, Yu Zhang Jan 2002

Mechanical Property Of Fused Deposition Parts, Yu Zhang

Theses and Dissertations

No abstract provided.


Computational Simulations Concerning Unsteadiness Attenuation In Axial Turbines, Robert R. Croft Jan 2002

Computational Simulations Concerning Unsteadiness Attenuation In Axial Turbines, Robert R. Croft

Theses and Dissertations

Axial turbomachines have inherently unstable flow fields due to the interaction between rotating and nonrotating blade rows. In addition, combustor instabilities add considerable stress on the blading via the introduction of localized radial and/or circumferential temperature discontinuities known as hot streaks. To alleviate the losses due to nonconformities within the turbine a computational effort has been undertaken investigating the effects of clocking an imbedded stage in a multi- stage axial turbine and a separate study considering the effects of an imposed temporally oscillating hot streak within a 1 1/2 stage turbine. Time-dependent hot streak results show little relation ...