Browsing Mechanical Engineering by Title
Now showing items 189-208 of 465
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Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains
(Elsevier, 2015)In order to determine the long term durability of friction stir welded joints with ultra-fine grained microstructure, investigation of the mechanical response with specific emphasis on fatigue behaviour is critical. In ... -
Fatigue characteristics of continuous welded rails and the effect of residual stress on fatigue-ratchetting interaction
(Taylor & Francis, 2020-03-16)The importance of ratchetting-fatigue interaction is garnering interest due to complex failure mechanism of rail welds under cyclic loading. The objective of this paper is to investigate the fatigue characteristics of ... -
First-principle diffraction simulations as a tool to solve the nanodiffraction problem
(International Union of Crystallography, 2021-08)N/A -
Flow and heat transfer study of an impinging piezoelectric fan over a vertical surface
(ASME, 2016)Piezoelectric fans are low-form-factor cooling devices, which have gained recent attention for electronics cooling. These devices feature a vibrating blade, which sheds vortices from its tip during its motion. The performance ... -
Flow visualization and LES simulations inside a chevron type plate heat exchanger
(Begell House Inc., 2018)An up-scaled model of a single channel of CPHE was used under dynamically similar conditions for the experiments. In experiments, pressure drop measurements and flow visualizations were conducted with aluminum flitter and ... -
Fluid flow characteristics inside convergent, divergent and straight open-end pressure swirl atomizer
(Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2020)Effects of geometrical parameters on the performance of small-scale open-end pressure swirl atomizers (PSA) have been studied using computational fluid dynamics. The shape of the swirl chamber is the main geometrical feature ... -
Force reference extraction via human interaction for a robotic polishing task: Force-induced motion
In this paper, a method to control a manipulator using force-induced trajectory is proposed. The trajectory is learned from an operator doing the polishing task using a tool attached to the robot's end-effector. The learning ... -
Formation of nano-sized compounds during friction stir welding of Cu–Zn alloys: effect of tool composition
(Elsevier, 2020-12)For the first time, the origin of tool composition effect on microstructure and mechanical properties of the friction stir welded joints has been disclosed. For this aim, nanoindentation, orientation image microscopy, and ... -
Fracture behavior of ultrafine-grained titanium under tension at elevated temperatures
(ASME, 2020-10-01)This investigation focused on the deformation response and microstructural changes of severely deformed titanium during post-severe plastic deformation tension, at temperatures of 300–600 °C and at strain rates of 0.001–0.1 ... -
Free simulation software and library
(Springer, 2018-01-01)With the advent of powerful computation technologies and efficient algorithms, simulators became an important tool in most engineering areas. The field of humanoid robotics is no exception; there have been numerous simulation ... -
Frequency-based dynamic topology optimization methodology for improved door closing sound quality
(Sage, 2019-12-05)Door closing sound quality of a vehicle has become one of the most important customer-related quality metrics in the recent years. There has been a vast amount of information on the design parameters contributing to this ... -
From passive to active pitch regulation of wind turbines: Optimization method with numerical validation
(ASME, 2015)An optimization method that changes the control strategy of the Horizontal Axis Wind Turbine (HAWT) from passive- to active-pitch has been developed. The method aims to keep the rated power constant by adjusting the blade ... -
A fundamental approach to electrochemical analyses on chemically modified thin films for barrier CMP optimization
(IOP Publishing, 2019-04-09)Chemical Mechanical Planarization (CMP) process development for 10nm nodes and beyond demands a systematic understanding of atomic-scale chemical and mechanical surface interactions for the control of material removal, ... -
Gabor filter based localization of needles in ultrasound guided robotic interventions
(IEEE, 2014)This paper presents an entropy based parameter tuning method for needle segmentation, and a probability map based needle tip estimation method using Gabor-based line filter. The proposed automatic parameter tuning method ... -
Gabor filter-based localization of straight and curved needles in 2D ultrasound images
(TÜBİTAK, 2020)2D ultrasound (US) is one of the most commonly used medical imaging devices for needle localization in biopsies. However, the produced images are low-resolution and contain an excessive number of artifacts, which makes the ... -
Geometric design of micro scale volumetric receiver using system-level inputs: An application of surrogate-based approach
(Elsevier, 2023-09-15)Concentrating solar thermal power is an emerging renewable technology with accessible storage options to generate electricity when required. Central receiver systems or solar towers have the highest commercial potential ... -
Global existence and blow-up of solutions for a general class of doubly dispersive nonlocal nonlinear wave equations
(Elsevier, 2013-01)This study deals with the analysis of the Cauchy problem of a general class of nonlocal nonlinear equations modeling the bi-directional propagation of dispersive waves in various contexts. The nonlocal nature of the problem ... -
Gradient-based optimization of micro-scale pressurized volumetric receiver geometry and flow rate
(Elsevier, 2023-02)This study focuses on the design optimization of a micro-scale pressurized volumetric receiver by changing geometry and flow rate constrained by the volume, outlet air temperature, and outer surface temperature. The ... -
Graphene as a piezoresistive material in strain sensing applications
(MDPI, 2022-01-12)High accuracy measurement of mechanical strain is critical and broadly practiced in several application areas including structural health monitoring, industrial process control, manufacturing, avionics and the automotive ... -
Growth of NGVs and comparative study of cylinder material for CNG storage
(Springer, 2023)In the present paper, the growth of Natural Gas Vehicles (NGVs) and the various pressure vessels used for storing compressed natural gas (CNG) is discussed.Also, the comparison of Von-mises stress in pressure vessels (PVs) ...
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