Browsing Department of Mechanical and Aerospace Engineering by Title
Now showing items 770-789 of 916
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A Semi-analytical Approach To Obtain Physical Fields In Heterogeneous Materials
(Mechanical Engineering, 2013-07-22)Predicting the macroscopic response of heterogeneous materials has been the subject of extensive research in the engineering community, even more so, in the composites guild. With analytical solutions being almost impossible ... -
Semi-analytical Complex Variable Based Stochastic Finite Element Method
(Mechanical Engineering, 2009-09-16)The stochastic finite element method (SFEM) is an approach that allows an analyst to define material, load, and geometry parameters as random variables to represent uncertainty in an engineering problem. The method is then ... -
SENSITIVITY STUDY OF CALIBRATED DATA CENTER MODELS TO MINIMIZE SITE SURVEY TIME USING CFD
(2021-05-12)Data center (DC) consists of components like cooling pipes, data cables, power conduits, etc. To analyze the thermal behavior of DC using computational fluid dynamics, virtual model of DC is required. To build this virtual ... -
Sensor Tasking for Satellite Tracking Utilizing Observability Measures
(2018-12-06)In this thesis, novel observability-measure based sensor tasking methods are studied for satellite tracking applications. The tasking is performed by first computing the Hellinger Distance between ground/space based sensors ... -
SET-THEORETIC FRAMEWORKS FOR ONLINE OPTIMIZATION, ESTIMATION, AND CONTROL
(2021-08-10)This research is primarily focused on developing online frameworks, which are suited to real-time implementation, for performance optimization, estimation, and control of dynamical systems using set-theoretic concepts ... -
SHAPE MODELING, ATTITUDE ESTIMATION, AND CLASSIFICATION OF ARTIFICIAL RESIDENT SPACE OBJECTS (RSO) USING PHOTOMETRIC LIGHT CURVES
(2021-06-28)Light curve inversion (LCI) has proven valuable in using photometric measurements to optimize various physical parameters of a resident space object (RSO) such as rotational period about its own spin axis, pole orientation ... -
SHAPE OPTIMIZATION OF A FAN DUNCTE FOR A VERTICAL TAKEOFF AND LANDING
(2018-08-31)The popularity of ride sharing services and recent improvements in electric car performance and automation have sparked interest in E-VTOL (Electric Vertical Takeoff and Landing) aircraft for personal transportation. ... -
SHAPE OPTIMIZATION OF HELICAL COIL TUBE FOR MAXIMIZING HEAT TRANSFER
(2016-12-20)Many researchers have observed the enhancement of heat transfer in coiled tubes compared to straight tubes with the same diameter and length. It is known fact, that in a helical coil tube the maximum axial velocity shifted ... -
Simulation And Performance Analysis Of Ejector Nozzle In A Low-bypass Turbofan Engine Using NPSS
Nozzles for propulsive applications in airbreathing engines have long been studied to augment thrust and reduce the size of the engine. They are critical elements of the engine as they convert the internal energy into ... -
Simulation Modelling of Thermal Runaway propagation in Li Ion batteries
(2019-05-14)Li Ion batteries are highly engineered systems which have become part and parcel of our daily lives. Safety of these systems has been in jeopardy ever since they were created. Mechanical abuse, shot circuit, overcharging ... -
SIMULATION OF A SOFT BODY NON-GRASP MANIPULATOR USING A SPRING-MASS-DAMPER CLOTH MODEL
(2021-08-12)Simulation and modeling are well known and important tools in the field of robotics, being used to validate design and in the development of robotic control systems. Traditionally, robotic systems have been primarily rigid ... -
Simulation Of Indeterminate Multi-point Impact And Contact With Friction
(Mechanical Engineering, 2011-03-03)This work presents a method for determining the post-impact behavior of a rigid-body undergoing simultaneous, multiple impacts with friction. A discrete algebraic model is used with an event-driven function which finds ... -
Simulation Of Indeterminate Multiple, Simultaneous Impact And Contact For A Flexible Multibody System
This work presents a method for understanding the impact behaviour of a flexible body undergoing multiple, simultaneous contacts. A continuous model is used with an event-driven function in MATLAB, which detects the ... -
Simulation, Control and Testing of a Custom 5-DOF Robotic Manipulator System
(2018-05-21)Open chain manipulators are a well posed problem, however it was necessary to build a system customized to meet the needs of the Unmanned Ground Vehicle developed in the Aerospace Systems Laboratory. Considering that there ... -
SLICING ALGORITHM FOR COMPLEX CONTOUR GENERATION FROM COARSE MESHED ISO-SURFACE DATA
(2016-12-20)Finite element based topology optimization is used to develop complex geometric configurations for additive manufacturing. Complex coarse-meshed Iso-surface data is extracted from topology optimization results and smooth ... -
SMART BED AND CONTACT IMPACT OF FLEXIBLE BODIES USING ENERGY COMPENSATION METHOD
(2015-12-09)This work investigates robotic means to prevent pressure ulcers in human bodies. The smart bed is intended to act as an intelligent assistant to a care-giver that relieves some of the physical and mental burden involved ... -
SMARTWALKER – ROLLING WALKER INSTRUMENTATION AND DATA ACQUISITION SYSTEM DEVELOPMENT TO MONITOR, VISUALIZE AND STORE ROLLING WALKER USAGE DATA
(2016-12-20)The Smart Walker project was designed to fill a necessity of monitoring in real time the use of rolling walkers (RW) and study the causes that contribute to the high rate of fallings among its users. The main objectives ... -
Solder Ball Reliability Assessment of Wafer Level Chip Scale Package (WLCSP) Through Power Cycling
(2016-12-20)Failure analysis and its effects are major reliability concerns in electronic packaging. More accurate fatigue life prediction can be obtained after the consideration of all affecting loads on the electronic devices. When ... -
SOLDER JOINT DESIGN OPTIMIZATION OF QUAD-FLAT PACKAGE WITH GULLWING LEADS UNDER ACCELERATED THERMAL CYCLING AND POWER CYCLING
(2018-07-10)Ever growing complexity in designing of Integrated Circuits and accommodating high number of Interconnections in the device is the main source of motivation in today’s world of IC devices. Quad Flat Package (QFP) with ... -
SOLDER JOINTS DESIGN OPTIMIZATION OF QFN PACKAGES FOR DIFFERENT BOARDS BY INVESTIGATING SOLDER JOINT RELIABILITY
(2017-05-30)Quad Flat No-lead package (QFN) is one of the most cutting-edge technologies emerged in the market, exhibiting high performance and efficiency with unparalleled cost effectiveness. QFN, a leadless package, is an ideal ...