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Design Optimization Using Augmented Lagrangian Particle Swarm Optimization
(Mechanical Engineering, 2011-07-14)
Engineering optimization problems normally include multiple, non-trivial, non-linear constraints. Traditionally gradient based optimization methods were used to solve these types of problems because of their high computational ...
Imbalance Response Of A Four Degree Of Freedom Rigid Rotor Supported By Hybrid Three Pad Air Foil Bearing
(Mechanical Engineering, 2011-03-03)
Air foil bearings (AFB's) are widely used in small to midsized turbomachinery. They provide safer, cleaner and cheaper bearing operation. They are simple in construction, offer very low drag friction and have very high ...
Stress Analysis For A Three Phase Plate With A Concentric Circular Inclusion By Deriving An Airy Stress Function
(Mechanical Engineering, 2011-07-14)
This thesis derives the Airy stress function for a three phase plate that consists of two concentric circular inclusions and a matrix phase. It incorporates the elastic property of each phase as well as the geometry of the ...
Spacecraft Formation Flight: Analysis Of The Perturbed J2-modified Hill-Clohessy-Wiltshire Equations
(Aerospace Engineering, 2007-08-23)
With the recent technological gains made in satellite design and manufacturing, there has been great interest in utilizing a cluster of satellites to perform the same tasks performed by larger satellites. Historically, ...
Topology Optimization Using Hyper Radial Basis Function Network
(Mechanical Engineering, 2010-03-03)
Topology optimization has been conventionally used in automobile and aerospace industries to produce lightweight structures for minimum compliance or maximum fundamental frequency. Today, topology optimization finds ...
Thermo-mechanical Interaction Within Engineered Tissue During Freezing
(Mechanical Engineering, 2009-09-16)
Cryopreservation is the preserving of biological tissues at sub zero temperature. There are many useful applications to cryopreservation such as storing donated organs till they are needed rather than letting them go to ...
Development Of Spectral And Wavelet Time-of-flight Methods For Propagating Shock And Detonation Waves
(Aerospace Engineering, 2009-09-16)
An accurate time delay estimate for a propagating disturbance, including an estimate of its uncertainty, is important in many areas of science. Several techniques were developed for determining the propagation time of a ...
An Analytical And Numerical Model For Design Of Non- Uniformly Powered Silicon Chips Based On Both Thermal And Device Clock Performance
(Mechanical Engineering, 2008-04-22)
Silicon chips continue to grow in capabilities, complexity and performance. Silicon chips typically integrate functional components such as logic and level two (L2) cache memory in their architecture. This functional ...
Effect Of Friction On The Zel'dovich Von Neumann Doring To Chapman Jouguet Transition
(Aerospace Engineering, 2010-11-01)
Detonation theory proposes Chapman-Jouguet state of equilibrium due to the sonic speed of the products relative to the wave. Experimental observations however indicated the existence of a sub-Chapman-Jouguet state. The ...
Constrained Dynamics Approach For Motion Synchronization And Consensus
(Aerospace Engineering, 2011-03-03)
In this research we propose to develop constrained dynamical systems based stable attitude synchronization, consensus and tracking (SCT) control laws for the formation of rigid bodies. The generalized constrained dynamics ...