Vibration and Dynamic Analysis

This study presents a novel state-feedback controller for a three-degree-of-freedom (3-DOF) tower crane system, optimized via frequency-domain cost function minimization. Tower cranes are complex, underactuated systems highly susceptible to external perturbations, particularly aerodynamic wind loads. The proposed Freq…

In this study, the double-neutral (3P + 2N) configuration, considered a traditional solution for busbar systems subjected to overcurrent and thermal stresses under harmonic loads, and alternative cross-sectional expansion (from 6 mm × 55 mm to 6 mm × 65 mm) scenarios are investigated using a multidisciplinary approach…

In this study, nonlinear vibrations of a slightly curved Timoshenko beam with nonlinear boundary conditions are investigated. The formulation is developed based on Timoshenko beam theory, incorporating shear deformation and rotary inertia effects. Geometric nonlinearity is introduced through the von Karman strain–disp…

Abstract Jumper conductor sets are essential components in energy transmission lines, enabling the transfer of electrical energy between insulator strings positioned on either side of tension towers. In cases where the jumper conductor set is relatively long, it is secured to the tower cross-arm through an insulator a…

This study presents the structural and dynamic analysis of a real 60/15 flat-top tower crane with a free-standing height of 48 m. Finite element analyses were performed to evaluate the stress distribution, deformation, and dynamic characteristics of the main structural components. Based on the finite element results,…

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Accurate motion tracking is a key requirement in three-dimensional printing systems, where deviations of the planar positioning stage directly degrade the accuracy of the deposited path. This study proposes an adaptive Bernstein polynomial based nonlinear tracking controller for a class of two axis Cartesian positioni…

Raylı ulaşım araç bakım atölyelerinde kullanılan sabit katener sistemleri, bakım süreçleri sırasında araçların enerjisiz hatlara taşınmasını gerektirmekte olup bu durum operasyonel verimsizlik, artan iş gücü ihtiyacı ve önemli güvenlik riskleri oluşturmaktadır; bu çalışmada söz konusu kısıtları ortadan kaldırmak amacı…

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The high-speed railways require more viaducts/bridges than a conventional railway. The dynamic analysis of viaduct-like structures under the passage of high-speed trains is im-portant due to comfortable riding, the safety of via-ducts/bridges, safe running, risk of derailment, etc. In this study, it is investigated wh…

Çift Beslemeli Asenkron Generatör (ÇBAG) tabanlı rüzgar çiftliğinin şebekeye bağlantısında kullanılan iletim hattı üzerinde seri kompanzasyon oranındaki artışlar Alt-Senkron Rezonans (SSR) durumlarına sebep olmaktadır. SSR sistemde kararsızlık ve salınım artması durumlarını ortaya çıkarmaktadır. Bu problemlerin çözüml…

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