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Now showing items 41-50 of 56
Investigation Of Minimum Response For Damage Assessment
(Mechanical Engineering, 2007-08-23)
Assessment of structural damage based on changes in vibratory response characteristics has been researched for many years, with much attention directed toward the use of modal parameters. Modal responses contribute to ...
Design Optimization And Synthesis Of Manipulators Based On Various Manipulation Indices
(Mechanical Engineering, 2007-08-23)
Design optimization of serial manipulators involves striking a balance between an appropriate joint angle and exact link lengths. The optimization technique used in this thesis uses a unique algorithm that optimizes the ...
Reliability Of Lead-free Solder Under Cyclic Bending
(Mechanical Engineering, 2007-08-23)
To characterize particular compositions of lead free solder, four point cyclic bending test was conducted to study the affects of accelerated stress testing on the package to board interconnects. Nine CTBGA packages with ...
Parameters Affecting Critical Heat Flux Of Nanofluids: Heater Size, Pressure Orientation And Anti-freeze Addition
(Mechanical Engineering, 2007-08-23)
This research aims at investigating the effect, heater size, pressure, heater orientation and effect of anti-freeze addition on critical heat flux of nanofluids which have shown large potentials as coolants for high power ...
Development Of Three Block Thermal Compact Model And Verification Of Modified Linear Superposition Technique For Stacked Die
(Mechanical Engineering, 2007-08-23)
Over the last few years an impressive amount of progress has been achieved in the field of compact modeling of chip packages. But available compact modeling methods could not address the issue of limitation on the mesh ...
Uncertainty Characterization Of Orbital Debris
(Aerospace Engineering, 2007-08-23)
The increase of orbital debris in the low Earth orbit is a concern for the space industry. Spacecraft and satellites are at risk of collision with orbital debris. Collisions can damage sensitive components or result in ...
An Evaluation Of Using Component Mode Synthesis For Structural Models
(Mechanical Engineering, 2007-08-23)
Structural analysts have used component mode synthesis (CMS), also known as substructuring, for decades to divide large structural models into smaller, more manageable models, and to reduce the size of the associated ...
Arc-heated Gas Flow Experiments For Hypersonic Propulsion Applications
(Aerospace Engineering, 2007-08-23)
Although hydrogen is an attractive fuel for a hypersonic air-breathing vehicle in terms of reaction rate, flame temperature, and energy content per unit mass, the substantial tank volume required to store hydrogen imposes ...
Numerical Study Of Chemically Reacting Viscous Flow Relevant To Pulsed Detonation Engines
(Aerospace Engineering, 2007-08-23)
A computational fluid dynamics code for two-dimensional, multi-species, laminar Navier-Stokes equations is developed to simulate a recently proposed engine concept for a pulsed detonation based propulsion system and to ...
Research For Dynamic Seal Friction Modeling In Linear Motion Hydraulic Piston Applications
(Mechanical Engineering, 2007-08-23)
This paper presents a unique physics-based analytic model for dynamic seal friction in hydraulic actuators as a function of cylinder pressure, seal material, piston rod dimensions, piston rod seal gland dimensions, and ...