Browsing Department of Mechanical and Aerospace Engineering by Title
Now showing items 784-803 of 916
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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 ... -
Solution To Incompressible Navier Stokes Equations By Using Finite Element Method
(Aerospace Engineering, 2010-11-01)The finite element method has become a popular method for the solution of the incompressible Navier-Stokes equations. High Reynolds number cases require fine meshes so computational efficiency becomes an important factor ... -
Solution To Multi Term Boltzmann Equation For Plasma Assisted Combustion
(Aerospace Engineering, 2010-11-01)Plasma assisted ignition and combustion (PAIC) is a technology where plasma is generated by high voltage, nano second pulse duration and high repetitive rate pulses. The high reduced electric field during the pulse allows ... -
Solution To Three Dimensional Incompressible Navier-stokes Equations Using Finite Element Method
(Mechanical Engineering, 2013-03-20)A primitive variable mixed order formulation of finite element method for solving three dimensional incompressible Navier-Stokes equations is presented. The method of weighted residuals is used to obtain the approximate ... -
SPACE ACCESS SYSTEMS DESIGN: Synthesis Methodology Development for Conceptual Design of Future Space Access Systems
(2017-08-31)The early Conceptual Design (CD) of a Space Access System (SAS) is the most abstract, innovative, and technologically challenging phase throughout the entire aerospace product development life-cycle. While it is the most ... -
Space Launch Vehicle Design: Conceptual Design of Rocket Powered, Vertical Takeoff, Fully Expendable and First Stage Boostback Space Launch Vehicles
(2018-02-15)Engineering design can be broken down into three phases: conceptual design, preliminary design, and detailed design. During the conceptual design phase, several potential configurations are studied towards the identification ... -
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, ... -
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 ... -
Spur Gear Analysis Using Mathcad
(Mechanical Engineering, 2012-07-25)In gear manufacturing applications, it is required to calculate surface stress and bending stress with minimum error. This thesis represents engineering calculation of bending and surface compression of external teethed ... -
Stable Reference Trajectory Modification For Handling Actuator Failure In Control Systems
(Aerospace Engineering, 2012-04-11)The issue of rapidly reconfiguring the reference trajectory under unanticipated actuator failures in order to regain lost performance or aircraft handling qualities is explored. The failures detected in real-time are ... -
State Variable Methods of Assessment, Prognosis, and Control of Composite and Bonded Structures
(Proceedings of the American Society for Composites—Thirty-third Technical Conference, 2018)**Please note that the full text is embargoed** ABSTRACT: It is generally recognized that the determination of material state is the baseline foundation for the assessment and prognosis of current and future performance ... -
Static And Dynamic Calibration Of A Multi-component Sidewall Force Balance For A Transonic Ludwieg Tube Wind Tunnel
(Aerospace Engineering, 2012-04-11)Experimentation involving transonic flow requires replicating not only the Mach number but also the Reynolds number. Improper matching of the Reynolds number affects the interaction between the shocks and boundary layer ... -
STATIC AND DYNAMIC FEA ANALYSIS OF A COMPOSITE LEAF SPRING
(2017-01-17)Composite materials are widely used in aeronautical, marine and automotive industries, because of their excellent mechanical properties, low density and ease of manufacture. Due to this increasing trend to utilize composite ... -
Static Response Calibration of 3D Printed Thin Walled Structures Using Fused Deposition Modelling
(2019-12-10)3-D printing has enabled flexible, tool-less fabrication that yields numerous benefits. One benefit is unique and complex structural arrangements that increase design freedom to minimize weight. Such arrangements can be ... -
STEADY STATE AND TRANSIENT ANALYSIS OF HEAT TRANSFER IN A POROUS FIN WITH RADIALLY OUTWARDS PRESSURE-DRIVEN FLOW
(2023-05-31)**Please note that the full text is embargoed until 05/15/2024** ABSTRACT: Thermal management and energy storage problems often utilize extended surfaces, also known as fins for enhanced heat transfer. Today fins are used ...