Browsing Mechanical Engineering by Title
Now showing items 109-128 of 206
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NON DESTRUCTIVE TESTING FOR Ni-Ti SAMPLES PREPARED BY DIFFERENT TECHNIQES
(IJASCE, 2013-10)Long series of searches were applied to emphasize Ni-Ti alloy composition harmony within human body. Ni-Ti alloy chemical and mechanical testing results paved for a revolution in the field of medical implants. Despite the ... -
Non-Circular Hydraulic Jump on a Moving Surface due to an Impinging Circular Free Surface Jet of Water
(Wiley Online Library, 2012-04)Liquid jet impingement has many industrial cooling applications such as metal manufacturing and steel cooling on run-out tables (ROT). The development of the wetting front around the impingement point of a jet is central ... -
Nonlinear Dynamics of Flexible Rotors Supported on Journal Bearings—Part I: Analytical Bearing Model
(American Society of Mechanical Engineers, 2018)To determine the bifurcation types in a rotor-bearing system, it is required to find higher order derivatives of the bearing forces with respect to journal velocity and position. As closed-form expressions for journal ... -
Nonlinear Dynamics of Flexible Rotors Supported on Journal Bearings—Part II: Numerical Bearing Model
(American Society of Mechanical Engineers, 2018)The nonlinear stability of a flexible rotor-bearing system supported on finite length journal bearings is addressed. A perturbation method of the Reynolds lubrication equation is presented to calculate the bearing nonlinear ... -
Nonlinear-electrostatic analysis of micro-actuated beams based on couple stress and surface elasticity theories
(Pergamon, 2014-07)In this paper, a size-dependent electrostatic model for cantilever micro-actuated beams is investigated considering the microstructure and surface energy effects. The modified couple stress theory is used to capture the ... -
A Novel Model for Benchmarking the Performance of Retail Stores for Retail Operations using Lean Manufacturing Approach
(ResearchGate, 2017)In the present study, lean manufacturing approach has been utilized to measure and benchmark the efficiency of retail services at five different store branches belonging to the same hypermarket and supermarket retail firm ... -
Numerical analysis of metal cutting with chamfered and blunt tools
(American Society of Mechanical Engineers., 2002-05)In high speed machining of hard materials, tools with chamfered edge and materials resistant to diffusion wear are commonly used. In this paper, the influence of cutting edge geometry on the chip removal process is studied ... -
Numerical analysis of metal cutting with chamfered and blunt tools
(American Society of Mechanical Engineers, 2002-04)In high speed machining of hard materials, tools with chamfered edge and materials resistant to diffusion wear are commonly used. In this paper, the influence of cutting edge geometry on the chip removal process is studied ... -
Numerical Assessments of Impingement Flow over Flat Surface due to Single and Twin Circular Long Water Jets
(Tsest, 2012-11)Hydrodynamics of impingement flow is a key partner of heat transfer analysis of run-out table (ROT) steel cooling. Velocity and pressure profiles before and after impingement of long circular free-surface industrial water ... -
Numerical Investigation of Compressor Blades Deformation During Stall Development into Surge
(American Institute of Aeronautics and Astronautics, 2017-05)The present paper focuses on the simulations of the flow behavior and the structural analysis for a high-speed compressor at the transition time between stall and surge. Two cases are presented; the first case is for the ... -
Numerical Investigation of Rotating Stall Characteristics and Active Stall Control in Centrifugal Compressors
(American Society of Mechanical Engineers., 2014-11)This paper focuses on providing better view for the understanding of rotating stall phenomenon in centrifugal compressors by using numerical simulations and presents a study of the role of air injection method in delaying ... -
Numerical investigation of rotating stall in centrifugal compressor with vaned and vaneless diffuser
(Springer Link, 2015-12)This study presents a numerical simulation of the stall and surge in a centrifugal compressor and presents a description of the stall development in two different cases. The first case is for a compressor with vaneless ... -
Numerical Investigation of Steady Air Injection Flow to Control Rotating Stall in Centrifugal Compressors
(American Society of Mechanical Engineers., 2014-10)This paper concerns the role of air injection method in stabilization and stall control in centrifugal compressors. The main aim is to find the best arrangement of air injection parameters such as injection angle and ... -
Numerical prediction of optimum hollowness and material of hollow rollers under combined loading
(ELSEVIER, 2009)Fatigue life investigations have been made for cylindrical hollow rollers in pure rolling contact. In addition to normal loading, the rollers have been subjected to tangential loading of 1/3rd the normal load value. ... -
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 ...