Browsing Department of Mechanical and Aerospace Engineering by Title
Now showing items 444-463 of 916
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Finite Element Analysis Of Forging
(Mechanical Engineering, 2009-09-16)Numerical modeling and simulation of metal forming is very effective in saving production time, effort and economy and has thus gained prominence in many industries all over the world. In metal-forming finite element ... -
Finite Element Analysis Of Helicopter Main Rotor Hub Plates To Evaluate The Possibility Of Increasing The Time To Retirement
(Mechanical Engineering, 2009-09-16)Rotorcraft main rotor systems have multiple components that are subject to very high loads and moments. These loads and moments dictate the life expectancy of the parts based upon the components material of composition. ... -
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 ... -
Finite Element Analysis Of Stresses In Involute Spur & Helical Gear
(Mechanical Engineering, 2011-03-03)Developing an analytical approach and modeling procedure to evaluate stress distribution under velocity and moment would provide a useful tool to improve spur gear design with high efficiency & low cost. The purpose of ... -
Finite Element Analysis on Hybrid Boron-Carbon Composites
(2017-08-28)Adaptability to different situations and the ease of combination makes composites one of the most extensively used materials in the engineering industries. One of the ways of managing properties of composites is hybridization ... -
Finite Element Based Cross-Sectional Buckling Optimization for a Constant Area, Pinned-Pinned Composite Column
(2016-05-10)In archery, dynamic buckling compromises the target accuracy of arrows. For both dynamic and quasi-static buckling, the buckling load depends on the cross-sectional area moment of inertia, which can be increased by modifying ... -
FINITE ELEMENT BASED METHODOLOGY TO PREDICT FATIGUE COMPRESSION FAILURE IN COMPOSITE BASED ON FIBER KINKING DAMAGE MODEL
(2020-09-04)Advanced polymer matrix composites are widely used in designing high-performance and lightweight spacecraft, rotorcraft, and automotive structures, due to its superior performance such as specific stiffness, specific ... -
Finite Element Based Methodology For Prediction Of Matrix-dominated Failure In Composites
(Aerospace Engineering, 2014-07-14)The objective of this work is to develop a computational failure prognosis methodology applicable to virtual testing of composites. The major motivation for the establishment of virtual testing is the ability to reduce ... -
Finite Element Based Stability Constrained Weight Minimization Of Sandwich Composite Ducts For Airship Applications
(Aerospace Engineering, 2011-10-11)High Altitude Long Endurance (HALE) airships are platform of interest due to their persistent observation and persistent communication capabilities. A novel HALE airship design configuration incorporates a composite sandwich ... -
FINITE ELEMENT BASED WEIGHT REDUCTION SUBJECT TO STABILITY CONSTRAINTS FOR AN AIRSHIP COMPOSITE DUCT
(2016-05-10)The primary functions of High Altitude Long Endurance (HALE) airships are persistent observation and wide area direct line of sight communication. Traditional airships have an ellipsoidal type hull, which is characterized ... -
FINITE ELEMENT MODELING AND STRESS DISTRIBUTION OF UNIDIRECTIONAL COMPOSITE MATERIALS UNDER TRANSVERSAL LOADING
(2017-01-17)Micromechanics of Composites analyze stresses inside any heterogeneous material. These stresses can not only be used for calculation of effective stiffness or compliance, but also for predicting strength and failure modes ... -
Finite Element Modeling Of Carbon Nanotube Reinforced Polymer Composites And Evaluating Its Thermal Conductivities
(Mechanical Engineering, 2007-08-23)High thermal conductivity of carbon nanotubes has motivated us to study and understand the thermal mechanisms in nanocomposites. Though several theoretical models predict a high thermal conductivity for CNT reinforced ... -
FITTING B-SPLINES CURVES TO COARSE DATA CLOUD USING MODIFIED SQUARED DISTANCE MINIMIZATION METHOD
(2016-08-22)Additive manufacturing has made us realize that we can fabricate complex shapes that were difficult to manufacture with subtractive processes. Topology optimizations results have complex shapes and have rough surfaces which ... -
Fixed Wing Aircraft Collision Avoidance Using Collision Cone Theory
(2022-08-12)This thesis develops the guidance and control components of an aircraft collision avoidance system, using a collision cone-based approach. These guidance and control laws are developed by considering the nonlinear relative ... -
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 ... -
FLEXIBLE-CONTINUUM ROBOT FOR BLADDER TISSUE DIAGNOSTICS
(2017-09-14)The aim of this thesis is to investigate and develop a robotic system capable of a transurethral palpation of any targeted area on the bladder interior wall tissue to determine the biomechanical properties of the tissue ... -
Flight Data Analysis And Simulation Of Wind Effects During Aerial Refueling
(Aerospace Engineering, 2008-08-08)This thesis presents an analysis of data obtained in an automated aerial refueling test flight conducted with a KC-135 as the tanker and a Learjet 25 as the surrogate receiver UAV. The purpose is to identify the wind induced ... -
Flight Path Tracking Control and Simulation
(2018-11)**Please note that the full text is embargoed** ABSTRACT: This paper focuses on the six-degree of freedom nonlinear flight simulation. A method of formulating commands for flight path control and simulation in a three-dimensional ... -
Flip Chip Back End Design Parameters To Reduce Bump Electromigration
(Mechanical Engineering, 2008-09-17)The advancement in flip chip technology has enabled us to meet the requirement of smaller die size along with the increased functionality. Due to this development in flip chip packaging technology along with higher current ... -
Fluid-crack Interaction In Hydraulic Fracturing
Hydraulic fracturing has been one of the major improvements in petroleum engineering in the past few decades. Since then this process has been used progressively and over million wells have been fracked using hydraulic ...