Mechanical Engineering / Makina Mühendisliği
Recent Submissions
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Electric charge of nanopatterned silica surfaces
(Royal Society of Chemistry, 2019)The most recent technologies employ nanoscale surface patterning or roughening in order to engineer desired properties on a surface. Electrokinetic properties at the interface of such surfaces and ionic liquids show different ... -
Mode-I fracture toughness of carbon fiber/epoxy composites interleaved by aramid nonwoven veils
(Techno-Press, 2019)In this study, carbon fiber/epoxy (CF/EP) composites were interleaved with aramid nonwoven veils with an areal weight density of 8.5 g/m(2) to improve their Mode-I fracture toughness. The control and aramid interleaved ... -
Effect of nano-film thickness on thermal resistance at water/silicon interface
(Elsevier, 2019-05)Parallel to the developments in micro/nano manufacturing techniques, component sizes in micro/nano electro mechanical systems have been decreasing to nanometer scales. Decrease in lengths in heat transfer direction below ... -
Modification of commercial boron carbide powder using Rapid Carbothermal Reduction
(Wiley, 2019-05)Non-uniform morphology and existence of free carbon are two main problems for commercial boron carbide powders. This work proposes a method for eliminating free carbon and changing the morphology of commercial powders using ... -
Off-design analysis of transonic bypass fan systems using streamline curvature through-flow method
(Walter de Gruyter, 2019-05)The two-dimensional streamline curvature through-flow modeling of turbomachinery is still a key element for turbomachinery preliminary analysis. Basically, axisymmetric swirling flow field is solved numerically. The effects ... -
An experimental test procedure for validation of stiffness model: A case study for R-CUBE parallel mechanism
(Springer, 2019)Haptic device manipulators are used for generating haptic feedback. This feedback is composed of force which is regulated with respect to motion information. Accurate generation of the feedback requires exact position ... -
Structural compliance effects on the accuracy and safety of a R-CUBE haptic device
(Springer, 2019)This paper addresses the contribution of structural compliance on stiffness and safety of a R-CUBE Haptic Device. Structural compliance is determined in several poses via FEM analysis and addressed by referring to local ... -
Geometrical analysis of a continuously variable transmission system designed for human-robot interfaces
(Elsevier, 2019)New robotic systems are placed out of their constrained workspaces in order to work alongside humans. Consequently, these applications call for robots monitoring and regulating physical human-robot interaction. These robots’ ... -
Low-power and low-cost stiffness-variable oesophageal tissue phantom
(Springer, 2017)Biological tissues are complex structures with changing mechanical properties depending on physiological or pathological factors. Thus they are extendible under normal conditions or stiff if they are subject to an inflammatory ... -
Reconfigurable deployable umbrella canopies
(Institute of Electrical and Electronics Engineers, 2018)The kinematic design of reconfigurable deployable canopy mechanisms with radially distributed limbs are presented in this study. The mechanisms allow a compact form and are reconfigurable with several alternative deployed ... -
The ARROWS Project: Robotic technologies for underwater archaeology
(Institute of Physics Publishing, 2018-06)The paper summarizes the main results achieved during the three-year European FP7 ARROWS project (ARchaeological RObot systems for the Worlds Seas). ARROWS concluded at the end of August 2015 and proposed to adapt and ... -
Wetting of chemically heterogeneous striped surfaces: Molecular dynamics simulations
(American Institute of Physics, 2018-06)Using molecular dynamics simulations, we thoroughly investigated the wetting behaviors of a chemically heterogeneous striped substrate patterned with two different wetting materials, face-centered cubic gold and face-centered ... -
Adaptive signal processing strategy for a wind farm system fault accommodation
(Institute of Electrical and Electronics Engineers, 2018-03)In order to enhance the 'sustainability' of offshore wind farms, thus skipping unplanned maintenance operations and costs, that can be important for offshore systems, the earlier management of faults represents the key ... -
The effect of cooling on mechanical and thermal stresses in vascular structures
(Yıldız Technical University, 2018-02)Here, we show how the vascular channel configuration and its shape affect the mechanical strength which is simultaneously subjected to heating and mechanical load. The material properties were defined as functions of ... -
A continuously variable transmission system designed for human-robot interfaces
(IFToMM, 2018-12)Continuously Variable Transmission (CVT) systems are being used for many applications such as automotive transmissions, robotics, aerospace. In an ideal condition, these systems have the potential to provide continuously ... -
Manipulator design for a haptic system with improved performance
(IFToMM, 2018-12)This paper presents the work carried out to improve the design of an existing kinesthetic haptic device. The proposed improvement is designated for enhancing this device’s impedance width which is a common metric in ... -
Silika yüzeylerin ıslanma hareketlerinin moleküler dinamik ile modellenmesi
(Gazi University, 2018)Yeni üretim tekniklerine paralel olarak nano-boyutlu teknolojiler çok geniş bir uygulama alanında kullanılmaya başlanmakta ve yeni uygulamalar geliştirmek için keşfedilmesi ve anlaşılması gereken konular süratle artmaktadır. ... -
The shape and size effect of the diatom frustule addition on the compression behavior of an epoxy
(Trans Tech Publications, 2018)The effects of the Achnanthes Taeniata and the diatomaceous earth (diatomite) frustules addition on the compressive strength of an epoxy matrix were investigated experimentally. The Achnanthes Taeniata frustules having ... -
Experimental evaluation of actuation and sensing capabilities of a haptic device
(Springer, 2019)Haptic devices are used to increase the telepresence level by providing the sense of touch to the human operator. Simultaneously, they capture the targeted motion of the human operator to generate a motion demand for the ... -
Design of a teleoperation scheme with a wearable master for minimally invasive surgery
(Springer, 2019)Minimally invasive surgery is increasingly being preferred over conventional surgery, however many problems still persist in longer surgeries such as pituitary surgeries, where surgeons are still required to hold an endoscope ...
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