Browsing Mechanical Engineering by Title
Now showing items 129-148 of 215
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Numerical Simulation and Control of Rotating Stall in a Transonic Centrifugal Compressor
(American Society of Mechanical Engineers., 2014-10)This study presents a numerical simulation of precursors and characteristics of rotating stall in a centrifugal compressor with vaned diffuser. The aim is to further understand the causes of stall inception, characteristics ... -
Numerical Simulation of Lithium-ion battery aging mechanisms and charging-discharging cycle
(IEEE Xplore, 2021-04)Numerical simulation and modelling of lithium-ion batteries are fundamentally crucial for thermal management systems, and are progressively becoming compelling in its rudimentary understanding on electrochemical performances ... -
Numerical Simulation of Stall Development Into Surge and Stall Control Using Air Injection in Centrifugal Compressors
(American Society of Mechanical Engineers, 2014-11)This study presents a numerical simulation of the formation of rotating stall and the initiation of surge in order to study the connection between stall and surge in centrifugal compressors. Also, the current paper introduces ... -
Numerical Simulation of Using Combined Active and Passive Stall Control Techniques in Centrifugal Compressors
(ASME, 2015-03)This study presents a numerical simulation of stall control by using the casing treatment method which represents the passive control technique and also by using the air injection method which represents the active control ... -
Numerical solutions of nonlinear problems of continua—I: Survey of formulation methods and solution techniques
(Science Direct, 2003-02)A comprehensive survey is provided for the formulation and solution techniques of finite element applications in nonlinear continuum mechanics problems. The survey discusses the Lagrangian, the updated Lagrangian, and the ... -
On Some Aspects of the Design of Heavy Trucks and Their Suspension Systems
(Science Direct, 2014-06)As heavy trucks traverse a rough road surface they respond dynamically. The trucks, due to their flexibility, vibrate as the road surface imposes excitation displacements at each wheel. In this paper, the truck ride problems ... -
On the aero acoustic and internal flows structure in a centrifugal compressor with hub side cavity operating at off design condition
(Elsevier, 2017-01)This paper covers the characterization of the acoustic noise and the unsteady flow field of a high speed centrifugal compressor NASA CC3. In order to accurately predict the noise, all analyses are carried out through the ... -
On the aero acoustic and internal flows structure in a centrifugal compressor with hub side cavity operating at off design condition
(Science Direct, 2017-01)This paper covers the characterization of the acoustic noise and the unsteady flow field of a high speed centrifugal compressor NASA CC3. In order to accurately predict the noise, all analyses are carried out through the ... -
On the Application of Intrinsic Thermocouples in Temperature Measurements in Water Jet Cooling
(Taylor and Francis Online, 2007-02)The reliability of intrinsic thermocouples in temperature measurements in the water jet cooling process of hot steel plates is investigated using the finite-element method. It is found that the isothermal condition does ... -
On the mesh motion for ALE modeling of metal forming processes
(Science Direct, 2002-01)Arbitrary Lagrangian–Eulerian finite element method is being increasingly used for simulation of metal-forming operations, due to its capability to combine the features of both Lagrangian and Eulerian approaches in a single ... -
Optical tomography dynamics induced by qubit‑resonator interaction under intrinsic decoherence
(2022-12)A superconducting circuit with a qubit and a resonator coupled via a two-photon interaction is considered. When the resonator is initially in a superposition of coherent states, optical tomography and quantum coherence ... -
Optimal selection of process mean for a stochastic inventory model
(Elsevier, 2013-05)It is very common to assume deterministic demand in the literature of integrated targeting – inventory models. However, if variability in demand is high, there may be significant disruptions from using the deterministic ... -
Optimal tuning of PID controllers for FOPTD, SOPTD and SOPTD with lead processes
(Elsevier, 2006-12)This paper presents the synthesis and analysis of optimal tuning of proportional integral derivative (PID) parameters for different process systems: first order plus time delay (FOPTD), second order plus time delay (SOPTD) ... -
Optimising grey iron powder compacts
(Taylor & Francis, 2009)The grey iron microstructure Fe–2C–2Si powder based compact is tailored by different kinds of in situ and post sintering processing. This has been achieved by combining thermodynamic and kinetics modelling of microstructure ... -
Optimization of fatigue life of hollow rollers under pure normal loading
(ASME Digital Collection, 2006)Fatigue life investigations have been made for hollow rollers in pure normal loading. Different hollowness percentages between 20% and 80% have been tested to find the optimum percentage hollowness that gives the longest ... -
Optimization of journal bearings using a hybrid scheme
(SAGE Journals, 2007-05)An optimization scheme that minimizes power loss and side leakage in journal bearings applications in turbines and other machinery operating in laminar flow is developed. The power loss equation is derived and shown to ... -
Optimization of the efficiency of stall control using air injection for centrifugal compressors
(Wiley Online Library, 1980-05)A plasticity theory for porous metals is proposed. A simple model of a porous materials is analysed by the finite element method. Small strain elastic–plastic analysis provides stress–strain curves, yield stressed and ... -
Poisson's ratio effects on the mechanics of auxetic nanobeams
(Elsevier Masson, 2018-07)Poisson’s ratio is an important mechanical property that reveals the deformation patterns of materials. A positive Poisson’s ratio is a feature of the majority of materials. Some materials, however, display “auxetic” behaviors ... -
Predicting Loading–Unloading Pile Static Load Test Curves by Using Artificial Neural Networks
(Springer International Publishing, 2019-06)In the United Arab Emirates, Continuous Flight Auger piles are the most widely used type of deep foundation. To test the pile behavior, the static load test is routinely conducted in the field by increasing the dead load ... -
Predicting optimum hollowness of normally loaded cylindrical rollers using finite element analysis
(Taylor & Francis, 2010-12)Fatigue life investigations have been made for hollow rollers in pure normal loading. Different hollowness percentages between 20 and 80% have been tested to find the optimum percentage hollowness that gives the longest ...