Browsing Department of Mechanical and Aerospace Engineering by Issue Date
Now showing items 41-60 of 916
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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 ... -
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 ... -
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, ... -
Multi-sensor Fusion Based Control For Autonomous Operations: Rendezvous And Docking Of Spacecraft
(Aerospace Engineering, 2007-08-23)The project considers the problem of motion synchronization of free flying robotic spacecraft and serviceable floating objects in space. The synchronization maneuvers are based on sample and hold nonlinear translational ... -
Frequency Response Approximation Methods Of The Dissipative Model Of Fluid Transmission Lines
(Mechanical Engineering, 2007-08-23)This thesis introduces an accurate and efficient method of obtaining a linear approximation for a nonlinear model of a complete fluid transmission line system using Matlab® Signal Processing Toolbox and Symbolic Math Toolbox ... -
MEMS Packaging: Fluxless Soldering and Reliability Assessment
(Mechanical Engineering, 2007-08-23)This thesis presents process development and reliability assessment of the fluxless packaging of the MEMS devices. This packaging consists of metallized Kovar package with side wall of same material and circular holes for ... -
Study Of Blast Wave Impact On Concrete
(Aerospace Engineering, 2007-08-23)The past decade has brought an upsurge of terrorist attacks throughout the world. A common form of attack is bombings employed against a civilian structure. These bombs lead to blast waves resulting from high explosive ... -
Enhancement Of Cryoinjury By Use Of Eutectic Crystallization Of An Amino Acid Adjuvant
(Mechanical Engineering, 2007-08-23)Enhancement of cryoinjury by use of eutectic formation was investigated to improve the efficacy of cryosurgery. Although the enhancement of cryoinjury associated with eutectic crystallization of sodium chloride (NaCl) has ... -
A Generic Stability And Control Tool For Flight Vehicle Conceptual Design: Aeromech Software Development
(Aerospace Engineering, 2007-08-23)During the conceptual design (CD) phase, various solution concepts must, and should, be explored to select the best flight vehicle size and configuration in order to meet the mission requirements. As the aerospace industry ... -
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 ... -
Spreading, Solidification And Remelting Behavior Of Liquid Metal Droplets Sequentially Impinging Onto A Metal Substrate
(Mechanical Engineering, 2007-08-23)The fluid dynamics and simultaneous solidification of two successive molten metal droplets impacting a flat substrate is investigated numerically. The primary objective is to investigate the effects of initial droplet and ... -
Enhancement Of Pool Boiling Heat Transfer Using Thermally-conductive Microporous Coating Techniques
(Mechanical Engineering, 2007-08-23)The present research is an experimental study of the enhancement of boiling heat transfer using microporous coating techniques. The current research is divided into four major phases. During the first phase, the effects ... -
Finite Element Analysis Of Moisture And Thermal Induced Stress In Flip Chip Packages
(Mechanical Engineering, 2007-08-23)The process of moisture absorption and subsequent hygroswelling stress development is a cause of concern in the IC packaging industry. Also thermal stresses developed during the lead free reflow process with a high peak ... -
Flexible Microfluidic Circuit With Embedded In-plane Valve
(Mechanical Engineering, 2007-09-17)Recent developments in Microfluidic systems have demonstrated many potential applications related to biology, chemistry and medical sciences. Fluidic manipulation with precise volume control is a basic function in these ... -
Design, Analysis And Development Of A Morphable Wing Structure For Unmanned Aerial Vehicle Performance Augmentation
(Mechanical Engineering, 2007-09-17)In this research, we propose mechanisms to continuously morph a wing from a lower aspect ratio to a higher and to further extremities of a gull and an inverted-gull configuration. The mechanism comprises of a linear actuator ... -
Stress Analysis Of An Ellipsoidal Inclusion
(Mechanical Engineering, 2007-09-17)The focus of the present thesis is to develop a mathematical model to calculate the stresses inside an ellipsoidal inclusion present in an infinitely extended matrix region and to validate the mathematically derived model ... -
Complete Stress Analysis For Two Dimensional Inclusion Problem Using Complex Variables
(Mechanical Engineering, 2007-09-17)This thesis addresses the problem of finding stresses and displacements in an infinite plate with a two dimensional circular inclusion with different material properties using complex variable method with biaxial loading ... -
Exploratory Studies Of Convective Flows Due To Arc Tracking
(Aerospace Engineering, 2007-09-17)The objective of the research was to develop an understanding of how a flame propagates through an electronic enclosure. FLUENT®, a Navier-Stokes solver, was chosen due to its widespread commercial use, the availability ... -
Context-aware Inference System To Capture Design Rationale From Legacy MCAD
(Mechanical Engineering, 2008-04-22)There exist numerous design rationale systems that convert captured information into structured design rationale while providing rationale representation and retrieval. These systems woefully neglect the design rationale ... -
Design And Analysis Of Multi-functional Laparoscopic Tool
(Mechanical Engineering, 2008-04-22)Laparoscopic tools have been developed over many years, but there is a need for a laparoscopic tool that can be used for multiple purposes without the need to be removed and reinserted in the body. This thesis discusses ...