Browsing Mechanical Engineering by Title
Now showing items 128-147 of 206
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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 ... -
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 ... -
Predicting the pile static load test using backpropagation neural network and generalized regression neural network – a comparative study
(Taylor & Francis Online, 2018-09)In this paper, two neural network models; the Back Propagation Network, and the Generalized Regression Neural Network were built to predict the downward displacement of the entire static load test for Continuous Flight ... -
Predictions of the frequencies of bending-torsion coupled laminated composite plates with discontinuities: Novel analytical modeling and experimental validation
(Elsevier, 2017-11)A novel analytical model that accurately represents the free vibration response of intact/damaged composite plates accounting for the bending-torsional coupling is developed. Unlike the existing models for the bending-torsion ... -
Pull-in instability of multi-phase nanocrystalline silicon beams under distributed electrostatic force
(Pergamon, 2015-05)The effects of the material structure on the pull-in instability of nano-actuated beams made of nanocrystalline silicon (Nc–Si) and subjected to a distributed electrostatic force are investigated. Nc–Si is represented ... -
Quasi-static thermo-electro-mechanical behaviour of piezoelectric stack actuators
(IOPScience, 2008-01)Smart Materials and Structures Quasi-static thermo-electro-mechanical behaviour of piezoelectric stack actuators F X Li1, R K N D Rajapakse1, D Mumford2 and M Gadala1 Published 17 January 2008 • IOP Publishing Ltd Smart ... -
Real-time Shadow Detection and Removal by Illumination Drop Point Analysis
(IEEE Xplore, 2020-12)The existence of shadows in natural scenes cause challenges in computer vision applications such as object detection. In this paper, a proposed approach is introduced for shadow detection in single images. Unlike other ... -
Recent advances in the numerical modeling of constitutive relations
(Science Direct, 2007-09)This chapter presents an overview of the recent developments in the area of numerical and finite element modeling of nonlinear constitutive relations. The chapter discusses the elastic, hyperelastic, elastoplastic and ...