Browsing Department of Mechanical and Aerospace Engineering by Title
Now showing items 750-769 of 916
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RELIABILITY CHALLENGES IN AIRSIDE ECONOMIZATION AND OIL IMMERSION COOLING
(2016-05-16)The Datacom facility which comprises rooms or closets used for communication, computers/servers or electronic equipment requires cooling unit which consumes 31% (23% HVAC cooling + 8% HVAC fans) of overall energy. The ... -
RELIABILITY ENHANCEMENT OF HETEROGENEOUS 3D INTEGRATED CIRCUIT AND CHARACTERIZATION OF THERMAL INTERFACE MATERIAL
(2020-08-28)Electronic products require high functional integration in small footprints with lower cost. At the same time, it is required to maintain effective communication between the IC’s and the electronic systems. Various challenges ... -
Reliability of a 2.5D TSV package
(2018-08-13)In the recent years, the Through Silicon Vias (TSVs) are helping a huge variety of the 3D IC and the 2.5D IC packaging applications to try to fulfill their requirements of functionality and higher connectivity at the expense ... -
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 ... -
Remote Patient Monitoring using Health Bands with Activity Level Prescription
(2016-12-19)With the advent of new commercially available consumer grade fitness and health devices, it is now possible and very common for users to obtain, store, share and learn about some of their important physiological metrics ... -
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 ... -
Reverse Engineering to Create High Quality Polymer Parts Using Additive Manufacturing
(2022-01-10)Reverse engineering is a process of recreating parts for which the tools no longer exist, reducing the cost of an original part by manufacturing it in-house or redesigning and improving the original part's function. This ... -
Richtmyer-Meshkov Instability In Reactive Mixtures.
(Aerospace Engineering, 2010-07-19)This research analyzes the effect of reactivity on the Richtmyer-Meshkov instability with particular emphasis on the velocity and wave number scaling and on the effect of free detonation instability modes on the interface ... -
Robot Motion Tracking Using Time-of-flight And Structured Light Sensors For Indoor Navigation
(2018-05-21)Simultaneous localization and mapping for mobile robots has been an active research field for several years with focus on the problems of accuracy and dependability of the data from the robot's peripherals. The position ... -
Robust Predictive Analytics for Determining Acclimation parameter of IT Equipment
(2018-05-22)Acclimation is the process in which an IT equipment adjusts to a change in its environment such as a change in temperature and humidity, allowing it to maintain performance across a range of environmental conditions. In ... -
Robust Synthesis Methods for Cooperative Systems
(2022-12-20)Cooperative systems, like any other dynamic systems, suffer in performance because of uncertainty yet there is an added layer of uncertainty due to the communication among agents. Therefore, analytic solution to these ... -
ROTOR PERFORMANCE MODEL (RPM)
(2021-07-06)Rotorcraft performance modeling is of high interest with multiple industry codes in existence, many of which are high-fidelity and are comprehensive in the analyses that are achievable. Along with the high-fidelity and the ... -
ROTORDYNAMIC ENHANCEMENT BY UTILIZING THE CONTROLLED HYDROSTATIC INJECTION OF HYBRID AIR FOIL BEARING
(2017-12-14)Air foil bearings (AFBs) are introduced as promising bearings for oil-free turbomachinery applications. Air foil bearing (AFB) technology has made substantial advancement during the past decades and found its applications ... -
Rotordynamic Performance Of A Rotor Supported By Three Pad Hybird Foil Bearings With Controlled Air Injection
(Mechanical Engineering, 2014-03-10)Air Foil Bearings have found their place in the commercial applications of turbo machinery. They are cleaner and more reliable at high speeds than their conventional counterparts (Rolling Element Bearings). Low drag ... -
The Samara Spacecraft: Design And Development Of A Self-stabilizing, Auto-rotating, Distributed Sensing System
(Aerospace Engineering, 2013-07-22)The scope of this research is the design and development of a self-stabilizing re-entry vehicle that closely resembles naturally occurring seeds in nature. It was hypothesized that a femto-satellite ... -
Scaling Laws For Radial Foil Bearings
(Aerospace Engineering, 2014-12)The effects of fluid pressurization, structural deformation of the compliant members and heat generation in foil bearings make the design and analysis of foil bearings very complicated. The complex fluid-structural-thermal ... -
Self-propulsion of Leidenfrost Drops between Non-Parallel Structures
(Springer NatureDepartment of Mechanical and Aerospace Engineering, The University of Texas at Arlington, 20 Septemb)In this work, we explored self-propulsion of a Leidenfrost drop between non-parallel structures. A theoretical model was first developed to determine conditions for liquid drops to start moving away from the corner of two ... -
SELF-PROPULSION OF LIQUID DROPS BETWEEN NON-PARALLEL STRUCTURES AT LEIDENFROST STATE
(2016-12-07)In this work, we explored self-propulsion of a liquid drop between non-parallel structures at a temperature above its Leidenfrost point. A theoretical model was first developed to determine conditions for a drop to move ... -
SELF-TRANSPORT OF LIQUID DROPS THROUGH A FUNCTIONAL MESH FOR REMOVING SWEAT AWAY FROM SKIN
(2016-12-07)In this work, a functional mesh is developed to transport liquid drops from one side of the mesh to the other. A theoretical model is established, which has been used to obtain three design criteria. Based on these design ... -
Semi-active Suspension System Using A Magnetorheological Damper
(Mechanical Engineering, 2015)Magnetorheological (MR) Fluid changes its yield strength when it is subjected to a magnetic field. When this fluid is used inside a damper, it has the ability to change the damping coefficients when it is acted upon by ...