Department of Mechanical Engineering, Article

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Recent Submissions

Experimental and numerical investigation of the effects of roof profile geometry on PV panel performance Toprak, Beytullah İsmet; SOLMAZ, İsmail; Bayer, Özgür (2026-07-01) This study examines the influence of roof profiles and the spacing between roofs and photovoltaic (PV) modules on the thermal behavior and electrical efficiency of PV panels under varying cooling fluid velocities and solar...
Optimized Multi-Unmanned Aerial Vehicle Coverage Path Planning for Efficient Solar Panel Cleaning: A Rectilinear and Vehicle Routing Problem-Based Approach Ghaziani, Matin; Yaman, Ulaş; Turgut, Ali Emre (2026-07-01) This study proposes a novel methodology for efficient multi-unmanned aerial vehicle (UAV) coverage path planning (CPP) tailored to solar panel cleaning applications. The approach incorporates rectilinear path planning and ...
Towards developing an add-on module to estimate attacker position for unmanned aerial vehicles Bakırcıoğlu, Veli; Şenyayla, Ozan; ARIKAN, KUTLUK BİLGE; Turgut, Ali Emre; Şahin, Erol (2026-06-01) Mini and micro unmanned aerial vehicles (mUAVs), which are often used as “eyes-in-the-sky” in defense applications are often vulnerable to sniper attacks coming from the ground. In this study, we propose an add-on defense ...
Analytical stick–slip and contact-loss transitions of a one-dimensional dry friction damper with gap Ozaydin, Onur; Ciğeroğlu, Ender (2026-06-01) Dry friction dampers are employed in many engineering applications to reduce vibrations and increase the fatigue life of mechanical parts. In supercritical helicopter tail drive shafts, dry friction dampers with gaps are u...
Implicit large eddy simulation of nearly incompressible flows with a discontinuous Galerkin–Boltzmann formulation Ata, Onur; Aygün, Atakan; Warburton, Tim; Karakuş, Ali (2026-05-01) We present a high-order implicit large eddy simulation (ILES) approach for simulating flows at the nearly incompressible regime. Our methodology is based on the utilization of a nodal discontinuous Galerkin (DG) discretiza...
Dynamics and Control of a Novel Hybrid Legged Robot with Temporary Flight Capabilities KUTLUAY, EMİR; Gültekin, Oğuzhan; Yazıcıoğlu, Yiğit (2026-05-01) In this study, a novel flying legged robot configuration with enhanced obstacle-crossing capability is introduced. Legged robots, especially RHex robots, already possess high obstacle-crossing capability; however, the obst...
Thermal Storage vs. Battery Storage in Urban Microgrids: A Techno-Economic Assessment of Hybrid PV–PTC–ORC Systems with Storage Medghalchi, Zahra; Taylan, Onur (2026-05-01) This study evaluates the techno-economic performance of hybrid solar energy systems designed for urban microgrids, with a particular focus on the role of thermal energy storage (TES) as an alternative to battery energy sto...
Thermochemical Characterization and Environmental Ash of COVID-19-Related Medical Waste Disposal Güçlü, Umut; Pisano, Italo; Trubetskaya, Anna; Hijazi, Ayman; Leahy, James J.; Kazanç Özerinç, Feyza (2026-04-21) The extensive use of single-use personal protective equipment (PPE) during the COVID-19 pandemic has substantially increased the generation of plastic-rich medical waste, raising concerns regarding its safe thermal treatme...
Nonlinear identification of jointed connections using nonlinear internal force identification method Ahi, Tahsin; Ciğeroğlu, Ender; Soleimani, Hossein; Özgüven, Hasan Nevzat (Springer Science and Business Media LLC, 2026-3-4) This paper presents a new method for identifying the nonlinear parameters of a connection used to couple two structures. The proposed Nonlinear Internal Force Identification Method (NIFIM) calculates the nonlinear internal...
Sürdürülebilir Türkiye için Solar Termal Teknolojileri Çalıştayı Sonuç Bildirgesi Taylan, Onur; Eryilmaz, Hande; Erden Topal, Yelda; Derin Güre, Pınar; Baker, Derek Keıth (2026-03-01)
Integrated framework for in-process modal analysis and tool–workpiece engagement detection Kaçan, Samet Can; Çalışkan, Hakan (2026-02-01) This paper presents an Extended Kalman Filter (EKF)-based real-time methodology for in-process modal identification and tool–workpiece engagement detection in milling operations. Unlike conventional offline Experimental Mo...
Nonlinear vibrations and modal interactions in rotating pre-twisted blades with thickness and chord variations using high-fidelity models with DICFs and PA Lotfan, Saeed; Ciğeroğlu, Ender (2026-01-01) This study presents a high-fidelity investigation into the coupled in-plane and out-of-plane nonlinear vibration characteristics and modal interactions of rotating pre-twisted blades with variable thickness and chord lengt...
Performance evaluation of copper cold plates manufactured via metal fused filament fabrication and alternative methods Bacikoglu, Mehmet Canberk; Yaman, Ulaş (2026-01-01) Additive Manufacturing (AM) provides notable advantages over traditional manufacturing techniques, particularly for creating parts with intricate geometries from diverse materials (Frazier, J Mater Eng Perform 23:1917–1928...
Perspectives on the resilience of existing bridges to short- and long-term impacts of climate change Shaban, Nefize Sabahatin; Arango, Erica; Jiménez Rios, Alejandro; Rincon, Luis F.; Shang, Yue; Habeeb, Bassel; Martín-Pérez, Beatriz; Ferreira, Tiago Miguel; Mendoza-Lugo, Miguel Angel; Ramírez Eudave, Rafael; Bastidas-Arteaga, Emilio; Sousa, Hélder S.; Nogal, Maria (2026-01-01) Climate change poses escalating risks to bridge infrastructure, with short-term hazards–such as flash floods, scour, snowfall, wildfires and windstorms–interacting with long-term stressors like corrosion and thermal effect...
A local correlation-based algebraic transition model in k-ω SST formulation Okumu, Bilal; Baran, Özgür Uğraş; Baş, Onur (2026-01-01) A new correlation-based algebraic transition model using local variables is proposed. Instead of solving an additional transport equation for intermittency, the model employs an intermittency function that controls the sou...
MIP-on-the-flow: Molecularly imprinted polymers in microfluidic sensing systems Okan, Meltem; Sanko, Vildan; Yıldırım, Ender; Tekin, H. Cumhur; Külah, Haluk (2026-01-01) The integration of molecularly imprinted polymers (MIPs) with microfluidic systems has emerged as a powerful strategy for developing selective and sensitive analytical platforms. As "artificial receptors," MIPs offer robus...
Characterization of PCM melting behavior in a cavity including the effect of forced convection Adl, Houman Farshineh; Bayer, Özgür (2025-12-15) Enhancing heat transfer efficiency is crucial for improving the performance of systems designed for heat dissipation and thermal storage. Phase change materials (PCMs) offer favorable thermal characteristics but are hinder...
Estimating Muscle Forces in Patients With Cerebral Palsy During Walking Using Static Optimization and Computed Muscle Control Kidwai, Alina Nawab; Atmaca, Kerim; Tönük, Ergin; Arslan, Yunus Ziya (2025-12-01) Cerebral palsy (CP) is a group of neurological disorders that presents significant challenges for clinical rehabilitation. While muscle forces could aid clinical decision-making, direct in vivo measurement is infeasible an...
Torsional characteristics of a novel infill pattern in material extrusion type of additive manufacturing: random lines Kaya, Huseyin; Yaman, Ulaş (2025-11-12) The selection of an appropriate infill pattern in Fused Filament Fabrication (FFF) plays a critical role in determining both mechanical performance and production efficiency, as it directly influences interlayer adhesion. ...
Effect of water-filled cylindrical 4340 steel chamber length and sidewall thickness on shaped charge jet penetration Gulyasar, Fuat; Yıldırım, Raif Orhan (2025-11-07) This paper assesses how effective a water-filled cylindrical chamber, constructed using 4340 steel with a 20 mm internal diameter but varying in length and sidewall thickness, is at protecting against M85-shaped charge amm...

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