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Now showing items 61-77 of 77
Compact oscillating heat pipe and development of fuzzy copper or wicking structures
(University of Missouri--Columbia, 2008)
A central processing units (CPU) calculation speed is limited by the heat it produces. As the number of transistors and the clock speed of CPUs increase they become more powerful, but they also generate more heat which ...
Forced convection in nanofluids over a flat plate
(University of Missouri--Columbia, 2008)
This work analyzes the characteristics, flow development, and heat transfer coefficient of nanofluids under laminar forced convection over a flat plate. Nanofluids are engineered colloids composed of a base fluid and ...
Advanced guidance algorithms for the Ares V cargo launch vehicle
(University of Missouri--Columbia, 2008)
Launch ascent guidance is an area that routinely involves applications of optimization tools and optimal control theory. The vacuum ascent trajectory problem has been formulated as a two-point boundary-value problem with ...
Optimization of electromagnetic acoustic transducers for nondestructive evaluation of concrete structures
(University of Missouri--Columbia, 2008)
There are more than 130,000 prestressed concrete bridges in the United States with about 37,000 bridges being more than 30 years old. Prestressing steel strands are an important construction element used in these bridges ...
Elastic property prediction of long fiber composites using a uniform mesh finite element method
(University of Missouri--Columbia, 2008)
This research numerically evaluates elastic non-isotropic material properties of fiber reinforced composite materials. Calculations are performed with a finite element mesh composed of a uniform array of three dimensional ...
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 ...
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 ...
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. ...
Exploratory development of VARIM process for manufacturing high temperature polymer matrix composites
(University of Missouri--Columbia, 2005)
This research focuses on an exploratory development of vacuum assisted resin infusion molding (VARIM) process for manufacturing high temperature polymer composite materials. High temperature matrix composites are needed ...
Finite element analysis of residual stress generation during spot welding and its affect on fatigue behavior of spot welded joints
(University of Missouri--Columbia, 2005)
This dissertation presents the finite element based prediction of residual stress generation in a spot welded joint during the spot welding process and the effects of residual stress on fatigue behavior of a spot welded ...
Development of an integrated approach combining artificial neural network material based on modeling with finite element analysis of forming processes
(University of Missouri--Columbia, 2005)
The use of a finite element model for design and analysis of a metal forming processes is limited by the incorporated material model's ability to predict deformation behavior over a wide range of operating conditions. ...
Comprehensive optimization for thermoelectric refrigeration devices
(University of Missouri--Columbia, 2005)
A large market is currently in place for which thermoelectric (TE) technology can provide diverse energy solutions. This market should continue to grow as improvements are made to TE materials. In the last 10-15 years, ...
X-ray topography techniques for the analysis of laser irradiated silicon
(University of Missouri--Columbia, 2005)
There is currently much interest in femtosecond scale laser interactions with materials. Comparison of the damage produced by the femtosecond laser pulses to the longer laser pulses is also of interest. This study examined ...
A generalized approach for calculation of the eigenvector sensitivity for various eigenvector normalizations
(University of Missouri--Columbia, 2005)
Sensitivity analysis is an important step in any gradient based optimization problem. Eigenvalue and Eigenvector Sensitivity Analysis has been a major area for more than three decades in structural optimization. An efficient ...
Mechanical and thermal buckling of thin films
(University of Missouri--Columbia, 2005)
Devices with feature size on the order of one micrometer have found widespread applications in science and engineering. MEMS, is a rapidly growing technology for the fabrication of miniature devices which provides a way ...
Advanced analysis and design of polymer sheet extrusion
(University of Missouri--Columbia, 2007)
A manufacturing process design methodology is presented which can be used to improve the production of polymer components manufactured via the extrusion. The design methodology employs polymer process modeling, design ...
Modeling tools and prototype design of loop heat pipe for electronics cooling
(University of Missouri--Columbia, 2009)
In this dissertation, a set of modeling tools for loop heat pipe (LHP) design is developed, and original analytical models for annular two-phase flow are proposed. LHPs are promising two-phase thermal transport devices for ...