Index Catalog // ScholarsArchive@OSU

Drilling process evaluation by predicting drilled hole quality and drill bit wear with on-line acoustic emission signals

Creator:: Wang, Kuang-Jen, 1962-
Abstract:: Improvement of manufacturing productivity is dependent on the successful automation of manufacturing processes, the success of which is based in turn upon the availability of information which describes the state of manufacturing operations. Acoustic Emission (AE) signals related to the cutting process and tool wear have been recently applied to...
Resource Type:: Dissertation
Full Text:: . Abstract approved: Robert K. Paasch Improvement of manufacturing productivity is dependent on the

A model for the mechanical behavior of irradiated mixed carbide sphere pac fuel pins

Creator:: George, Thomas L.
Abstract:: A model is developed that allows the prediction of the stress-strain distribution in a mixed carbide sphere pac fuel pin during irradiation. The model is coupled with a previously developed model for the thermal behavior of the pin. The one-dimensional (radial at various axial locations) solution is for quasi-steady pin...
Resource Type:: Dissertation
Full Text:: Growth and Shrinkage in the Small Sphere Array due to Plastic Flow 115 4.4 YIELD STRESS OF (U,PU)C 116

High cycle fatigue modeling and analysis for deck floor truss connection details

Creator:: DePiero, Anthony H.
Abstract:: The Oregon Department of Transportation is responsible for many steel deck truss bridges containing connection details that are fatigue prone. A typical bridge, the Winchester Bridge in Roseburg, Oregon, was analyzed to assess the loading conditions, stress levels, and fatigue life of the connection details. The analysis included linear-elastic beam...
Resource Type:: Masters Thesis
Full Text:: F-k-DVV c\"Rec' o-c^ -c?;e 4g o'c> C\c)c)f cc) C'`c 2.cd, Fast Lane Strain gage ---- \ Strain

Implementation and evaluation of a participating media radiation model in the TEMPEST thermal-hydraulic computer code

Creator:: Rector, David R.
Abstract:: In this work, a method for solving the differential form of the radiative transfer equation was implemented into an existing three-dimensional thermal-hydraulic computer program known as TEMPEST. The method used was the P-l approximation, where the angular distribution of the radiation intensity is represented by a truncated series of spherical...
Resource Type:: Masters Thesis
Full Text:: =0 * sin [(ni-mi-2k+1)e1} (2.16) where r(c) is the gamma function, and the notation (a)k is

Quantification of total and plastic 3D strain fields within micro-damaged polyurethane foam

Creator:: Sutton, Matthew T.
Abstract:: Local material damage that occurs within cellular solids, such as polymer foams and trabecular bone, and precedes local fractures of the cell struts or walls is called micro-damage. The accumulation of micro-damage within cellular solids is often undesirable, although it is thought to be vital to the development and health...
Resource Type:: Masters Thesis
Full Text:: ............ 1 2. Flow chart for displacement measurement procedure (Bay, B. K. et al. 1999

Monitoring and diagnosis of a multi-stage manufacturing process using Bayesian networks

Creator:: Wolbrecht, Eric T.
Abstract:: This thesis describes the application of Bayesian networks for monitoring and diagnosis of a multi-stage manufacturing process, specifically a high speed production part at Hewlett Packard. Bayesian network "part models" were designed to represent individual parts in-process. These were combined to form a "process model", which is a Bayesian network...
Resource Type:: Masters Thesis
Full Text:: for node A 9 4.2 Prior probability table for node C 9 4.3 Conditional probability table for node B

Evaluation of failure diagnosis in conceptual design of mechanical systems

Creator:: Ruff, David N.
Abstract:: A methodology for improving quality and reducing life cycle costs of mechanical systems is described. The principal concept is that a system can be designed, in the conceptual stages, to be easier to diagnose for failures. To perform this, functional decomposition and form to function mapping are utilized both as...
Resource Type:: Masters Thesis
Full Text:: Design of Mechanical Systems Redacted for Privacy Abstract approved: Robert K. Paasch A

Analytical method for the prediction of reliability and maintainability based life-cycle labor costs

Creator:: Fitzpatrick, Mark W.
Abstract:: An analytical method for predicting life-cycle maintainability labor costs is developed. The purpose of the analytical method is to allow the evaluation of products, based on life-cycle labor cost, early in the design process. The Boeing 737-300/400/500 Bleed Air Control System is used as a test model, and the results...
Resource Type:: Masters Thesis
Full Text:: approved: Robert K. Paasch An analytical method for predicting life-cycle maintainability labor costs is

The effect of geometric orientation and random wind conditions on flat plate convection rates

Creator:: Melchior, Daniel K.
Abstract:: An experimental investigation has been performed to determine the forced convection heat transfer due to three-dimensional air flow over a flat plate as a function of angle of attack and free stream velocity. The experimental method employed a transient thermal technique and placed the convecting surface next to the exhaust...
Resource Type:: Masters Thesis
Full Text:: used for the reduction of the data collected. Pr 2/3 [ me I T -T. 1 K I c I to To-T. j jp (2-15

An examination of point defects and atomic diffusion in silicon

Creator:: Monson, Tyrus K.
Abstract:: The self-interstitial defect is commonly regarded as important in regulating diffusion in silicon. A review of the literature reveals that the scientific bases for invoking the self-interstitial defect are weak, while an alternate defect, the vacancy cluster, has been largely ignored. One argument which has been used to establish dominance...
Resource Type:: Dissertation
Full Text:: silicon AN ABSTRACT OF THE DISSERTATION OF Tyrus K. Monson for the degree of Doctor of Philosophy in

ScholarsArchive@OSU

Drilling process evaluation by predicting drilled hole quality and drill bit wear with on-line acoustic emission signals

A model for the mechanical behavior of irradiated mixed carbide sphere pac fuel pins

High cycle fatigue modeling and analysis for deck floor truss connection details

Implementation and evaluation of a participating media radiation model in the TEMPEST thermal-hydraulic computer code

Quantification of total and plastic 3D strain fields within micro-damaged polyurethane foam

Monitoring and diagnosis of a multi-stage manufacturing process using Bayesian networks

Evaluation of failure diagnosis in conceptual design of mechanical systems

Analytical method for the prediction of reliability and maintainability based life-cycle labor costs

The effect of geometric orientation and random wind conditions on flat plate convection rates

An examination of point defects and atomic diffusion in silicon

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