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Now showing items 1-17 of 17
Modeling of selective laser sintering of single-component metal powders
(University of Missouri--Columbia, 2006)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Selective Laser Sintering (SLS) is a rapid prototyping technology which enables freeform fabrication of complex-geometry components directly from ...
Nanomechanical property characterization of femoral head materials
(University of Missouri--Columbia, 2006)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Orthopedic Implants under long-term physiological loading could produce changes in the surface mechanical properties and possible failure. The knowledge ...
Characterization of drillability of sandwich structure of carbon fiber reinforced epoxy composite over titanium alloy
(University of Missouri--Columbia, 2006)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Composite-over-Titanium structures are the major candidates for substitution of conventional materials in aerospace industries. This paper investigates ...
Modeling, design and control of forced-feedback metering poppet valve system
(University of Missouri--Columbia, 2006)
This research explores valve design, dynamic modeling, and techniques to achieve flow control for a forced-feedback metering poppet valve system. In particular, nonlinear and linear models of a forced feedback configuration ...
A fault detection scheme for modeled and unmodeled faults in a simple hydraulic actuator system using an extended Kalman filter
(University of Missouri--Columbia, 2006)
In this work an extended Kalman filter (EKF) is used to detect a variety of faults in a simple hydraulic actuator system. Much interest exists in detecting faults in their early stages in the hopes that machine downtime ...
Nonlinear mechanics and testing of highly flexible one-dimensional structures using a camera-based motion analysis system
(University of Missouri--Columbia, 2006)
Both experimental and theoretical investigations are conducted for the dynamics of cables and strings. The exact equations of motion for finite but small amplitude vibration of string were derived based on a fully nonlinear ...
Analysis of lubrication groove geometry
(University of Missouri--Columbia, 2006)
Lubrication is process of using lubricants in moving machine components to reduce friction and wear between them and consequently to improve their running life. In this thesis, a groove is introduced in these components ...
Experimental investigation of nanofluid oscillating heat pipes
(University of Missouri--Columbia, 2006)
An experimental investigation was conducted of oscillating heat pipes (OHP) charged with diamond nanofluid. By combining the high thermal conductivity of nanofluids with the high heat transport rate of OHPs, a new type of ...
Applying and analyzing robust modern control on uncertain hydraulic systems
(University of Missouri--Columbia, 2006)
In this work modern robust control systems are designed and compared to standard techniques for a hydraulic implement system. The system includes an independent metering valve (IMV) and a variable displacement pump. The ...
Galilean moon tour using simplified trajectory computational techniques
(University of Missouri--Columbia, 2006)
It is desired to find a trajectory for a spacecraft that will capture into an orbit about Jupiter and then subsequently capture into an orbit about each of the Galilean moons. The two main variables are the mass ratio, ...
Theoretical and experimental investigation of oscillating heat pipes
(University of Missouri--Columbia, 2006)
A mathematical model describing the oscillation characteristics of slug flow in a capillary tube is presented. The model considers the vapor bubble as the gas spring for the oscillating motions in a capillary tube including ...
A single-sided access simultaneous solution of acoustic wave speed and sample thickness for isotropic materials of plate-type geometry
(University of Missouri--Columbia, 2006)
In ultrasonic nondestructive evaluation, acoustic waves are used to inspect and characterize materials. Two commonly measured parameters are material thickness and acoustic wave speed in the material. These parameters are ...
System modeling and control design of a two-stage metering poppet-valve system
(University of Missouri--Columbia, 2006)
The goal of this work is to develop mathematical models, stability criteria, and control designs for a two-stage poppet valve system with a simple back-side pipeline condition that may be used in a valve stack to create ...
Modern control design for a variable displacement hydraulic pump
(University of Missouri--Columbia, 2006)
In this work modern control methods are used to design and analyze control methods for a variable-displacement hydraulic pump. More accurate uncertainty descriptions are derived by using a structured uncertainty model as ...
Specific bio-modeling and analysis techniques at cellular and systems level
(University of Missouri--Columbia, 2006)
Modeling approaches are developed for two different levels, cellular (Part I) and systems (Part II), and used to develop insights into system performance. PART I consists of three chapters focusing on computational ...
Torque ripple attenuation for an axial piston swash plate type hydrostatic pump: noise considerations
(University of Missouri--Columbia, 2006)
The main goal of this work is to reduce the disturbing noise generated by axial piston swash plate type hydrostatic pumps by attenuating the shaft torque variation. The analysis begins by deriving the equation of the shaft ...
Advanced analysis of short-fiber polymer composite material behavior
(University of Missouri--Columbia, 2006)
Short-fiber polymer composites experience widespread use in many industrial applications, where the orientation states of the short-fibers within the polymer matrix define the material properties of the composite structure. ...