Browsing by Author "Guncan, Berkay"

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    Book Part
    Citation - Scopus: 7
    ANT-M: Design of Passive Lower-Limb Exoskeleton for Weight-Bearing Assistance in Industry
    (Springer International Publishing, 2019) Guncan, Berkay; Unal, Ramazan
    This study describes the optimized design of a passive lower limb exoskeleton for workers in the industry. The exoskeleton is aimed at helping workers who carry heavy loads, by supporting their posture and reducing stress in their knees which would prevent future injuries. However, most of the previous passive designs are insufficient in a way that they are bulky. Therefore, this study is focused on achieving lightweight passive exoskeleton. Topology optimization has been carried out to reach this goal. The results are validated using finite elements methods, in ANSYS environment. © 2018 Elsevier B.V., All rights reserved.
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    Conference Object
    Citation - WoS: 2
    Citation - Scopus: 1
    The Numerical Solutions for Stiff Ordinary Differential Equations by Using Interpolated Variational Iteration Method With Comparison to Exact Solutions
    (Amer Inst Physics, 2018) Ciftci, Cihan; Cayci, Hatice Sinem Sas; Atay, Mehmet Tarik; Toker, Batuhan; Guncan, Berkay; Yildirim, Afsin Talha
    Recently proposed Interpolated Variational Iteration Method (IVIM) is used to find numerical solutions of stiff ordinary differential equations for both linear and nonlinear problems. The examples are given to illustrate the accuracy and effectiveness of IVIM method and IVIM results are compared with exact results. In recent analytical approximate methods based studies related to stiff ordinary differential equations, problems were solved by Adomian Decomposition Method and VIM and Homotopy Perturbation Method, Homotopy Analysis Method etc. In this study comparisons with exact solutions reveal that the Interpolated Variational Iteration Method (IVIM) is easy to implement. In fact, this method is promising methods for various systems of linear and nonlinear stiff ordinary differential equations as an initial value problem. Furthermore, IVIM is giving very satisfactory solutions when compared to exact solutions for nonlinear cases depending on the stiffness ratio of the stiff system to be solved.