Ender Ciğeroğlu

E-mail

ender@metu.edu.tr

Department

Department of Mechanical Engineering

ORCID

0000-0002-3120-1409

Scopus Author ID

12760002600

Web of Science Researcher ID

G-5014-2012

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...
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...
Coupled thermo-elastic dynamics of rotating pre-twisted blades exposed to thermal shock including nonlinear rotational effects Lotfan, Saeed; Ciğeroğlu, Ender (2025-01-05) Rotating blades operating under high-temperature experience intense mechanical and thermal stresses induced by centrifugal forces and thermal shock. In this research, to address this critical yet understudied topic, couple...
Reduced-order spectral Chebyshev models for geometrically nonlinear vibrations of thin-walled structures Lotfan, Saeed; Ciğeroğlu, Ender (2025-01-01) Geometrically nonlinear effects commonly arise in thin-walled structures, such as beams, plates, and shells, when subjected to large-amplitude vibrations. Accurate modeling of these effects is crucial in various applicatio...
Frequency Domain Analysis of Aeroelastic Flutter Problem of Planar Structures Using Generalized Differential Quadrature Method Kılıçarslan, Doğuhan; Kösterit, Güneş; Ciğeroğlu, Ender (2025-01-01) Flutter instability occurs when the modal damping of the system becomes negative while the natural frequency is nonzero, in which the energy of the system increases while the structure is undergoing vibrations. As an aeroe...
Dynamic modelling of rotating axially functionally graded pre-twisted blades with chord length variations LOTFAN, SAEED; Ciğeroğlu, Ender (2024-09-06)
SAVTEK 2024 11. Savunma Teknolojileri Kongresi Bildiriler Ciğeroğlu, Ender (ODTÜ, 2024-09-01)
Frequency Domain Analysis of Aeroelastic Flutter Problem of Planar Structures Using Generalized Differential Quadrature Method Kılıçarslan, Doğuhan; KÖSTERİT, GÜNEŞ; Ciğeroğlu, Ender (2024-02-01)
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...
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...

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