Browsing Mechanical Engineering by Title
Now showing items 196-215 of 215
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A temperature-dependent two-step domain-switching model for ferroelectric materials
(Science Direct, 2009-10)Piezoelectric stack actuators are promising candidates for use in fuel injection technology. Experimental results for stack actuators have shown that a significant amount of heat is generated when they are driven under ... -
Thermal Imaging Fault Detection for Rolling Element Bearings
(IEEE, 2020-04)In rotating machinery, rolling element bearings are one of the most critical components and a large majority of system failures arise from faulty bearings. Hence, there is an increasing demand to find an effective and ... -
Thermal postbuckling of shear deformable multiscale hybrid composite beams
(Techno-Press, 2021)This research is deal with thermal buckling and post-buckling of carbon nanotube/fiber/polymer composite beams. The beam is considered to be under uniform temperature rise. Firstly, the effective material properties of a ... -
Thermo-Acoustic Water Analyzer in Hydrocarbon Emulsions with Kalman Filter
(science publications, 2012-01)Problem statement: Water detection in hydrocarbon emulsions represents a serious challenge in petroleum production industry. The elemenation of measurment noises is also desired. Approach: In this study, a systematic and ... -
Thermo-electro-mechanical Performance of Piezoelectric Stack Actuators for Fuel Injector Applications
(Sage, 2009-03)Piezoelectric actuators are increasingly used in fuel injectors due to their quick response, high efficiency, accuracy, and excellent repeatability. Current understanding of their thermo-electro-mechanical performance under ... -
THERMOACOUSTIC ANALYZER FOR WATER CONTENT DETECTION IN HYDROCARBON EMULSION
(2012)Water detection in hydrocarbon emulsions represents a serious challenge in petroleum production industry. In this paper, a systematic and an applicable method of water detection in hydrocarbon emulsion is achieved using ... -
Three dimensional computational study for spiral dry gas seal with constant groove depth and different tapered grooves
(Science Direct, 2014-04)The three dimensional simulation for dry gas seal with constant depth spiral grooves and with different taper grooves is done using ANSYS FLUENT CFD code. Grid independence study and code validation are done with experimental ... -
Three-dimensional FE analysis of ring rolling by employing thermal spokes method
(Science Direct, 2004-03)This paper investigates the performance of the “Thermal Spokes Method” in modeling the effect of the guide rolls on the ring rolling process. If the guide rolls are not included FE, simulation encounters problems such as ... -
Three-Dimensional Thermal Field in Slider Bearings
(ASME, 2008-11)A three dimensional thermohydrodynamic lubrication model which couples the Reynolds and energy equations is developed. The model uses the streamline upwind Petrov-Galerkin (SUPG) method to solve the nonsymmetric stiffness ... -
Towards the formal reliability analysis of oil and gas pipelines
(Springer, 2014-07)It is customary to assess the reliability of underground oil and gas pipelines in the presence of excessive loading and corrosion effects to ensure a leak-free transport of hazardous materials. The main idea behind this ... -
Two-machine flowshop with synchronized periodic maintenance
(EDP Sciences, 2018)In the literature, some works deal with the two-machine flow shop scheduling problem under availability constraints. Most of them consider those constraints only for one machine at a time and also with limited unavailability ... -
U-shape Acoustic Liquid Densitometer
(IIETA, 2019-04) -
Unsteady CFD simulation for high speed centrifugal compressor operating near surge
(Digital Collection: American Society of Mechanical Engineers, 2014-09)Centrifugal compressor surge and stall are an instabilities flow and system phenomenon, which can lead to a loss of engine power, large pressure transients and, in some cases, failure of the compressor and bearing system. ... -
The use of volume of solid (VOS) approach in simulating metal cutting with chamfered and blunt tools
(Science Direct, 2010-10)A new volume of solid (VOS) method is proposed for simulating metal cutting applications. The method utilizes the Eulerian finite element formulation along with a numerical scheme to calculate volume of solid fractions in ... -
Using SERVIQUAL to investigate the quality of provided wireless communication services in UAE
(Emerald Publishing Limited, 2020-02)The purpose of this paper is to investigate the service quality of wireless telecommunication services in the UAE.This study uses the five dimensions of SERVQUAL instrumentation (reliability, assurance, tangibility, empathy ... -
Validity of bolt‐removal and gap‐insertion techniques to experimentally simulate the vibration of a cracked rotor
(Wiley Online Library, 2004-05)Experimental studies of the vibration of a cracked rotor are essential in the development of vibration monitoring techniques. The greatest difficulty in conducting experimental parameter studies is the extensive amount of ... -
A Variable Neighborhood Descent Heuristic for the Multi-quay Berth Allocation and Crane Assignment Problem Under Availability Constraints
(Springer, 2018-10)In this paper, we consider the integrated Berth Allocation and Crane Assignment problem, with availability constraints and high tides restrictions, in bulk port context. We were inspired by a real case study of a port owned ... -
Vision-based approach for automated social distance violators detection
(IEEE Xplore, 2020-12)Social distancing is a necessary precaution measure taken in order to have more control over the outbreak of infectious diseases such as COVID-19. Most of Social distancing monitoring approaches are based on Bluetooth and ... -
Wave dispersion analysis of fluid conveying nanocomposite shell reinforced by mwcnts considering the effect of waviness and agglomeration efficiency
(Multidisciplinary Digital Publishing Institute, 2021-01)The current paper is aimed to investigate the effects of waviness, random orientation, and agglomeration factor of nanoreinforcements on wave propagation in fluid-conveying multi-walled carbon nanotubes (MWCNTs)-reinforced ... -
Wettability and confinement size effects on stability of water conveying nanotubes
(2020-10)This study investigates the wettability and confnement size efects on vibration and stability of water conveying nanotubes. We present an accurate assessment of nanotube stability by considering the exact mechanics of ...