Department of Mechanical Engineering

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Recent Submissions

Microstructure and nanomechanical behavior of sputtered CuNb thin films Abboud, Mohammad; Motallebzadeh, Amir; Duygulu, Özgür; Maaß, Robert; Özerinç, Sezer (2021-09-01) © 2021 Elsevier LtdWe report on the mechanical properties of Cu–Nb alloys produced by combinatorial magnetron sputtering. Depending on the composition, the microstructure is either fully amorphous (~30–65 at.% Cu), a dispe...
Supercritical extraction of biomass as an effective pretreatment step for the char yield control in pyrolysis Trubetskaya, Anna; Budarin, Vitaliy; Arshadi, Mehrdad; Magalhães, Duarte; Kazanç Özerinç, Feyza; Hunt, Andrew John (2021-06-01) © 2021 The Author(s)This work demonstrates that the coupling of supercritical carbon dioxide extraction with pyrolysis is an effective method for the removal of extractives from forestry residues and generation of solid ch...
Ideal tooth profile modifications for improving nonlinear dynamic response of planetary gear trains Ozturk, Veysel Yalin; Ciğeroğlu, Ender; Özgüven, Hasan Nevzat (2021-05-01) The ultimate goal in this study is to investigate the effects of tooth profile modifications (TPMs) on PGTs by performing parametric studies. For this purpose, firstly a nonlinear planetary gear dynamics model with time-va...
Prediction of yields and composition of char from fast pyrolysis of commercial lignocellulosic materials, organosolv fractionated and torrefied olive stones Magalhães, Duarte; Gürel, Kaan; Matsakas, Leonidas; Christakopoulos, Paul; Pisano, Italo; Leahy, J.J.; Kazanç Özerinç, Feyza; Trubetskaya, Anna (Elsevier BV, 2021-04-01) © 2020 The Author(s)This study investigated the fast pyrolysis behaviour of torrefied olive stones, fractionated olive stones and lignocellulosic commercial compounds. Olive stones were reacted in a continuous industrial t...
An extended view for acoustofluidic particle manipulation: Scenarios for actuation modes and device resonance phenomenon for bulk-acoustic-wave devicesa) Özer, Mehmet Bülent; Cetin, Barbaros (2021-04-01) For the manipulation of microparticles, ultrasonic devices, which employ acoustophoretic forces, have become an essential tool. There exists a widely used analytical expression in the literature which does not account for ...
Characterization of Reactive Metallic Nanolayers through High-speed Imaging Behboud, Ali Bagheri; Kazanç Özerinç, Feyza; Özerinç, Sezer (2021-03-15) Reactive metallic nanolayers are nanolaminated structures composed of alternating layers of two metals. Thermally or mechanically-induced mixing of these pure metal layers results in the formation of an intermetallic alloy...
Radiative heat transfer in the discrete element method using distance based approximations Johnson, Evan F.; Tarı, İlker; Baker, Derek Keıth (2021-03-01) A model to estimate radiative heat transfer in particle beds is developed for use in the Discrete Element Method (DEM). Monte Carlo ray tracing simulations are run to find the Radiation Distribution Factor (RDF) between pa...
models, EXperiments and high PERformance computing for Turbine mechanical Integrity and Structural dynamics in Europe (EXPERTISE) Özgüven, Hasan Nevzat(2021-2-28) Energy and Mobility are two primary driving forces in the 21st century. Development of incremental and disruptive technologies will have key impacts on the world’s societies, and on safety, security and competitiveness of ...
Investigation of the structural, magnetic, and cooling performance of AlFe thin film and AlFeGd nanometric giant magnetocaloric thin films Pat, Suat; Bayer, Özgür; Akay, Sertan Kemal; Mohammadigharehbagh, Reza; Kaya, Metin (Springer Science and Business Media LLC, 2021-02-01) Giant magnetocaloric thin films are promising materials for new generation energy-efficient cooling systems. To investigate the cooling performance of AlFe and AlFeGd alloys, thin films have been deposited onto a glass sub...
Mechanical properties of thermoplastic parts produced by fused deposition modeling: a review Bakir, Ali Alperen; Atik, Resul; Özerinç, Sezer (2021-02-01) Purpose - This paper aims to provide an overview of the recent findings of the mechanical properties of parts manufactured by fused deposition modeling (FDM). FDM has become a widely used technique for the manufacturing of...
Interactions during CO2Co-gasification of Biomass and Coal Chars Obtained from Fast Pyrolysis in a Drop Tube Furnace Magalhães, Duarte; Akgül, Alican; Kazanç Özerinç, Feyza; Costa, Mário (2021-01-01) © 2021 American Chemical Society.This work investigated the co-gasification of biomass and coal chars obtained from fast pyrolysis (1000 °C, ∼104 °C s-1) in a drop tube furnace. Olive residue and Soma lignite were fast-pyr...
Current trends and research opportunities in hybrid additive manufacturing Dilberoğlu, Mecid Uğur; Gharehpapagh, Bahar; Yaman, Ulaş; Dölen, Melik (2021-01-01) Despite the rapid growth in the past decade, the industrial adoption of additive manufacturing has not still been achieved due to certain limitations. A recent trend to alleviate its inherent drawbacks is to integrate addi...
A self-adaptive landmark-based aggregation method for robot swarms Sadeghi Amjadi, Arash; Raoufi, Mohsen; Turgut, Ali Emre (2021-01-01) Aggregation, a widely observed behavior in social insects, is the gathering of individuals on any location or on a cue. The former being called the self-organized aggregation, and the latter being called the cue-based aggr...
Flow rate-controlled pipetting for microfluidics: second-generation flexible hydraulic reservoir (FHRv2) Atay, Atakan; Topuz, Alper; Sariarslan, Buesra; Yıldırım, Ender; Charmet, Jerome; Couling, Kevin; ÇETİN, BARBAROS (Springer Science and Business Media LLC, 2021-01-01) A critical component of microfluidic technology is the fluid pumping mechanism. Syringe and pressure pumps are typically used in the lab environment; however, their operations generate considerable dead volume that is ofte...
Numerical and experimental investigation of acoustophoretic microfluidic devices Şahin, Mehmet Akif; Özer, Mehmet Bülent; Department of Mechanical Engineering (2021-1) Acoustophoresis is one of the techniques to manipulate suspended particles to intended positionsin continuous flow. In this study, a numerical simulation methodologythatcouples electro-mechanic, solid,and ac...
Robust Formation Coordination of Robot Swarms with Nonlinear Dynamics and Unknown Disturbances: Design and Experiments Hu, Junyan; Turgut, Ali Emre; Lennox, Barry; Arvin, Farshad (2021-01-01) IEEECoordination of robot swarms has received significant research interest over the last decade due to its wide real-world applications including precision agriculture, target surveillance, planetary exploration, etc. Man...
On the solution of nonlinear algebraic equations following periodic forced response analysis of nonlinear structures using different nonlinear solvers Kizilay, H. Sefa; Ciğeroğlu, Ender (2021-01-01) © The Society for Experimental Mechanics, Inc 2021.In periodic forced response analysis of nonlinear structures, most of the time analytical solutions cannot be obtained due to the complex behavior of the nonlinearity and/...
Vibration reduction of a structure by using nonlinear tuned vibration absorbers Dogan, Muhammed Emin; Ciğeroğlu, Ender (2021-01-01) © The Society for Experimental Mechanics, Inc 2021.Tuned Vibration Absorbers (TVA) are commonly used in reducing undesirable vibrations of mechanical structures. However, TVAs work in a very limited frequency range and if ...
Maneuver planning strategy for rapid response solar sail satellite concept Polat, Halim; Tekinalp, Ozan (2021-01-01) © 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.Regarding the use of Solar Sail Satellites at low altitudes for the proposed concept, a study is carried out to determine the critic...
Investigation of Cue-Based Aggregation Behaviour in Complex Environments Wang, Shiyi; Turgut, Ali Emre; Schmickl, Thomas; Lennox, Barry; Arvin, Farshad (2021-01-01) © 2021, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.Swarm robotics is mainly inspired by the collective behaviour of social animals in nature. Among different behaviours such...

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