Department of Aerospace Engineering, Conference / Seminar

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Recent Submissions

Hydroacoustic analysis of tip-vortex cavitation behind a ship propeller Başkan Perçin, Özge; Fiscaletti, Daniele; Elsinga, Gerrit; Van Terwisga, Tom (2024-06-05)
Effect of Induction and Blade Elasticity Modelling on Wind Turbine Rotor Performance Predictions Aryan, Navıd; Öztürk, İldeniz; Putra, Muhammad Juanda; Sezer Uzol, Nilay; Oğuz, Elif; Greco, Luca (2024-05-27)
Numerical Simulations of Floating Offshore Wind Turbines using Open-Source Codes on HPC Putra, Muhammad Juanda; Sezer Uzol, Nilay; Uçar, Muhammed; Oğuz, Elif (2024-05-15) In the present study, the numerical modeling and simulations of a Floating Offshore Wind Turbine (FOWT) are presented. The analyses are carried out utilizing a variety of open-source codes and run on a High-Performance C...
Improving the Load Carrying Capacity of Highly Tapered Laminates Ergin, Fırat; Kayran, Altan (2024-02-08) Kat düşme bölgelerindeki artan gerilimler, katman ayrılmasına neden olur ve çok sayıda katın kısa mesafede sonlandırıldığı kompozit parçaların mukavemetini azaltır. Bu çalışmada, yüksek oranda konikleştirilmiş lamine kompo...
Aerodynamic Measurements and Benefit Quantification of a Boundary Layer Ingested Propulsion System Bilyaz, İbrahim Soner; Başkan Perçin, Özge (2024-01-04)
Experimental Study on Active Vibration Control of a Piezo-Beam Structure with Finite Series Based Adaptive Controller Gezer, R. Berk; Alan, A. Burkay; Kutay, Ali Türker; Şahin, Melin (2024-01-01) This study presents an experimental investigation of an active vibration control system implemented on a piezo-beam structure consisting of a cantilever beam with lead zirconium titanate (PZT) patches positioned at the roo...
Predictive Motion Planning for VTOL Landings on Vertically Moving Marine Platforms Kholosi, Hazem; Yayla, Metehan; Kutlu, Aykut; Söken, Halil Ersin (2024-01-01) This paper presents an algorithm developed for scheduling the landing of an aircraft on a vertically moving marine platform. The algorithm incorporates the relative velocity of the aircraft and marine platform, ensuring a ...
Frictional Sliding Modes using the Maxwell-Slip Model Özcan, Tutku Ilgın; Amireghbali, Aydin; Çöker, Demirkan (2024-01-01) This study investigates the frictional sliding dynamics occurring at the interface between two bodies in contact by using the Maxwell-slip model at the microscopic scale. The elastic body is modeled as a set of independent...
Numerical simulations of low-velocity impact experiments on cross-ply CFRP beams using a heuristic boundary conditions approach with spring elements BATMAZ, ONUR ALİ; Bozkurt, Mirac Onur; Gürses, Ercan; Çöker, Demirkan (2024-01-01) A high-fidelity finite element model is constructed to simulate the low-velocity line-impact experiments conducted previously by Bozkurt and Coker on [05/903]s CFRP beam specimens. In the finite element simulations, we imp...
Formulation of a Bilinear Traction-Separation Interface Law in Boundary Elements with Homogenization Akay, Ahmet Arda; Göktepe, Serdar; Gürses, Ercan (2024-01-01) Similar to most conventional composite materials, the interface is generally the weakest part of nanocomposites. For this reason, the behavior of the reinforcement-matrix interface is critical for determining the strength ...
Nanoscratching of polycrystalline copper examined through strain gradient crystal plasticity Günay, Enes; Ozdemir, Merthan; Yalçınkaya, Tuncay (2024-01-01) Nanoscratch testing is a method pivotal for evaluating the mechanical and tribological characteristics of materials which involves the controlled scratching of specimens with a nano-scale indenter. This research delves int...
Dwell fatigue fracture in Ti microstructures through crystal plasticity and phase field fracture frameworks Bulut, Orhun; Erdoğan, Can; Yalçınkaya, Tuncay (2024-01-01) Titanium alloys, due to their advantageous properties are used to construct key components in aero-engines. However, their susceptibility to dwell fatigue conditions has been known to lead to a severe reduction in function...
Phase Field Fracture Modelling of Crack Initiation and Propagation in Dual-Phase Microstructures Tatlı, Berkehan; Erdoğan, Can; Ozcan, Mehmed Emin; Yalçınkaya, Tuncay (2024-01-01) Dual-phase (DP) steel's spread in the industry has been fueled by its highly desirable qualities, which include a unique balance of strength and ductility, making it a valuable material for applications ranging from automo...
Strain Gradient Plasticity Analysis of Amorphous Plasticity Ünsal, İzzet Erkin; Yalçınkaya, Tuncay (2024-01-01) Amorphous materials lack a defined crystalline structure, exhibiting a disordered atomic arrangement that imparts superb mechanical properties and great potential for applications in many areas. Because of their disordered...
Bioinspired Interfaces for Improved Interlaminar Shear Strength in 3D Printed Multi-material Polymer Composites ALTUNTAŞ, UMUT; Çöker, Demirkan; Yavas, Denizhan (2024-01-01) Additively manufactured soft-hard composite materials are significant because they combine the benefits of both soft and hard materials, creating a new class of materials with unique properties. The interfaces between the ...
A Dual Quaternion Based Visual Odometry Method for a Lunar Lander Uzun, Semra Sultan; Söken, Halil Ersin (2024-01-01) Visual sensors have a major advantage over traditional sensing methods for navigation in unknown environments since they provide rich information about the environment. However, they do not offer direct navigation measurem...
Fault-tolerant ADCS for Small Satellites Using Bayesian Networks Yildirim, Cansu; Söken, Halil Ersin (2024-01-01) The Attitude Determination and Control System (ADCS) in satellites uses different modes to estimate and control attitude during various mission phases. This study presents an ADCS design for an Earth-observing small satell...
Airfoil Icing Prediction with Improved Roughness Model Özgen, Serkan; Sarlbel, Eda Bahar (2024-01-01) Wind turbines are usually exposed to harsh environmental conditions, resulting in the icing of their structures. The production capability of iced wind turbines drops significantly compared to clean turbines. Understanding...
Machine Learning Based Predictions of Airfoil Aerodynamic Coefficients for Reynolds Number Extrapolations Özgören, Ahmet Can; Acar, Deniz Alper; Kamrak, Recep; Eriş, Görkem Mahir; Özdemir, Yasin; Sezer Uzol, Nilay; Uzol, Oğuz (2024-01-01) This study investigates the application of various machine learning (ML) algorithms for predicting two critical aerodynamic coefficients, i.e. the maximum lift coefficient (C l max ) and the minimum drag coefficient (C d m...
Investigating 3-D Flow Characteristics of Wind Turbine Airfoils using Delayed Detached Eddy Simulations at High Reynolds Numbers Akcengiz, Ezgi Orbay; Sezer Uzol, Nilay (2024-01-01) This numerical study investigates the 3-D flow field and aerodynamic characteristics of DU 00-W-212 wind turbine airfoil at high Reynolds numbers. The Computational Fluid Dynamics (CFD) simulations are performed at Reynold...

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