Department of Mechanical Engineering, Conference / Seminar

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Finite element method (11)
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Conference Paper (901)
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Recent Submissions

Comparative Analysis of Solar Tower and Parabolic Trough Systems for Solar Heat in a Steel Industry Değirmenci, Deniz; Güner, Levent; Taylan, Onur; Inceoğlu, Didem Nedret; Sakallı, Server; Ünal, Erdal (2024-04-10) Concentrated Solar Thermal (CST) systems emerge as a promising alternative to replace fossil fuels used in industrial thermal processes due to their high energy density and dispatchability. In this study, a comparative ana...
A Novel Approach for Local Structural Modification of Nonlinear Structures Ceren Ekinci, E.; Bülent Özer, M.; Özgüven, Hasan Nevzat (2024-01-01) Structural modification methods provide powerful tools to calculate the dynamic behavior of a modified structure from that of the original one. In general, either the modal properties or responses of the original structure...
A Non-retracted Path Generation Algorithm for Material Extrusion Type of Additive Manufacturing Ozcan, Melih; Hergul, Yigit; Yaman, Ulaş (2024-01-01) Path planning algorithms are utilized in various fields to improve the efficiency of the defined tasks. Regarding extrusion based additive manufacturing (AM) technologies, an optimized path performs the same task in less t...
Four-Bar Function Generation Using Excel Solver Söylemez, Eres; Kiper, Gökhan (2024-01-01) The Chapter presents a simple and efficient way of approximating a function with a four-bar mechanism using four or five design parameters including one or both of the initial crank angles. The method only involves solutio...
Experimental Modal Analysis of Structures with High Nonlinear Damping by Using Response-Controlled Stepped-Sine Testing Karaağaçlı, Taylan; Özgüven, Hasan Nevzat (2024-01-01) In the last decade, various promising nonlinear modal identification techniques have been developed based on the nonlinear normal mode (NNM) concept. Most of these techniques rely on the phase resonance testing approach wh...
Effect of Structural Parameters on the Nonlinear Vibration of L-Shaped Beams Ekici, Yigitcan; Ciğeroğlu, Ender; Yazıcıoğlu, Yiğit (2024-01-01) In this chapter, nonlinear vibration analysis of L-shaped beams is performed for different structural parameters, and the effects of these parameters are observed. The L-shaped beam is composed of two beams joined end to e...
The TRChallenge: Experimental Quantification of Nonlinear Modal Parameters and Confrontation with the Predictions Bhattu, Arati; Jamia, Nidhal; Hermann, Svenja; Müller, Florian; Scheel, Maren; Özgüven, Hasan Nevzat; Schwingshackl, Christoph; Krack, Malte (2024-01-01) In recent years, the prediction of the behavior of structures with high-level nonlinearities has been a challenging area of research. In 2021, the Tribomechadynamics Research Challenge was proposed to evaluate the current ...
Nonlinear Vibration Analysis of a Two-Blade System with Shroud-To-Shroud Contact by using Response Dependent Nonlinear Normal Modes Ahi, Tahsin; Ciğeroğlu, Ender; Özgüven, Hasan Nevzat (2024-1) Periodic forced response analysis of nonlinear real systems is a computationally demanding task. In order to reduce the computational burden, different approaches are proposed in the literature. The reduced computational e...
Extension and Experimental Verification of an Efficient Re-Analysis Method for Modified Non-linear Structures Ekinci, Ceren; Karaağaçlı, Taylan; Çelik, Furkan Kaan; Özer, Mehmet Bülent; Özgüven, Hasan Nevzat (2024-1) Design changes often occur during engineering applications. Although there are numerous methods to implement these changes and efficiently calculate dynamic responses of modified linear systems; modification methods applic...
Experimental Sub-structuring for Linear and Nonlinear Connection Dynamics: A Tutorial - Part 2: Nonlinear Joints Özgüven, Hasan Nevzat (2024-1)
High-order discontinuous Galerkin methods with finite volume subcells for compressible flows on simplices Karakuş, Ali; Unnikrishnan, Umesh; Patel, Saumil (2023-12-21) This work presents GPU-accelerated nodal discontinuous Galerkin methods for supersonic and hypersonic flows with finite volume subcell stabilization on simplices. Our approach merges the favorable attributes of the discont...
Transition Measurements on NLF(1)-0416 Airfoil Using Infrared Thermography Kalaycı, Ahmet Çağdaş; Doğan, Batuhan; Perçin, Mustafa; Uzol, Oğuz (2023-11-21)
_The Investigation of Mechanical and Thermal Properties of Sintered Bauxite and Sand Particles as Heat Transfer and Storage Media Uykun, Zeynep; Tarı, İlker; Baker, Derek Keıth (2023-10-06) The concept of using solid particles as heat transfer and storage medium has drawn interest in recent years with the advantages over the existing technologies. However, the behavior of particles in the commercial systems s...
Elektro-Hidrostatik Eyleyicilerde Dinamik Direngenliğin İyileştirilmesi Özbaş, Cumhur; Afatsun, Ahmet Can; Çalışkan, Hakan (2023-09-15) Electro-hydrostatic actuators are preferred in the aviation industry due to their compact design and high energy efficiency. Unlike conventional hydraulic actuator systems, electro-hydrostatic actuators are controlle...
Heliostat Optimization of a Solar Tower for Industrial Process Heat Güner, Levent; Taylan, Onur; Günay, Ahmet Alperen (2023-09-08)
Radiative Cooling in Greenhouses Through Spectrally Selective Cover Materials Bulut, Mertcan; Taylan, Onur; Günay, Ahmet Alperen (2023-09-08)
Coupled thermo-viscoplastic fracture model for ductile-brittle failure of amorphous glassy polymers with phase-field approach Dal, Hüsnü (2023-05-31) Amorphous glassy polymers have an extensive use in the industrial sectors including micro-electronics, medical industry and aerospace, therefore their design and usage have become a significant task nowadays. The fracture ...
Dispersion-type Anisotropic Viscoelasticity: Model Validation for Myocardium Dal, Hüsnü; Açan, Alp Kağan; Altun, Cem (2023-05-29) This contribution presents a novel constitutive model for rate-dependent response of the passive myocardium. As a first step, we performed a comparative study on dispersion-type anisotropic hyperelastic constitutive models...
Physics-Informed Neural Networks for Mesh Deformation with Exact Boundary Enforcement Aygün, Atakan; Karakuş, Ali (2023-03-03) In this work, we have applied physics-informed neural networks (PINN) for solving mesh deformation problems. We used the collocation PINN method to capture the new positions of the vertex nodes while preserving the connect...
A Local Discontinuous Galerkin Level Set Reinitialization with Subcell Stabilization on Tetrahedral Meshes Karakuş, Ali (2023-03-03)

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