Mechanical Engineering / Makina Mühendisliği

Permanent URI for this collectionhttps://hdl.handle.net/11147/4129

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Author: search.filters.author.Söylemez, EresLanguage: search.filters.language.en

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Now showing 1 - 6 of 6
  • Conference Object
    Citation - Scopus: 3
    Four-bar function generation using excel solver
    (Springer, 2023) Söylemez, Eres; Kiper, Gökhan
    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 solution of linear set of equations and evaluating determinants, whereas nonlinear equations are numerically solved using a simple program such as Excel. So, the method is easy to explain and can be taught in an undergraduate course along with the wellknown linear three precision point synthesis problem. Precision point synthesis, order synthesis, mixed order synthesis, least squares approximation and extreme point synthesis can all be treated using the same method. The proposed method is illustrated with numerical examples for all mentioned synthesis problems and shown to be quite efficient with very low amount of structural error values.
  • Conference Object
    A sustainable association case study: IFToMM member organization Turkey
    (Springer, 2022) Kiper, Gökhan; Söylemez, Eres
    As a member of IFToMM founded in 2011, Turkish Machine Theory Association’s (MakTeD) structure has put special emphasis on sustainability of the association and initiated several activities for improving the quality of education and research in mechanism and machine science area, hence supporting the SDG4 Quality Education of the UN. This paper presents the activities and methodologies of MakTeD. The paper starts with a brief history of mechanism and machine science in Turkey. In 10 years MakTeD organized 4 symposiums, 1 conference, 4 summer/winter schools, 8 workshops and hosted an IFToMM Executive Council meeting. Each chapter of the biyearly held National Symposium on Theory of Machines is held by a different university and especially newly established and the universities in relatively smaller cities are prioritized in order to promote those universities and to contribute to development of these universities. Especially the summer/winter schools and workshops have a widespread impact on mechanism and machine science education and research at the universities and institutions. MakTeD also contributes to the community with published books and support programs for young researchers.
  • Conference Object
    Kinematic Synthesis of Planar 4-Bar Path Generators for Finite Line Positions
    (Springer Verlag, 2019) Kiper, Gökhan; Söylemez, Eres
    Although the kinematic synthesis of planar function, point-path and motion gen-erators are vastly studied in the literature, surprisingly synthesis of line-path gen-erators is not formulized in detail. This study presents the formulization of the planar 4-bar line-path generator synthesis problem for up to 5 homologous posi-tions. Numerical examples for 3 and 4 line positions are presented for the illustra-tion of the formulations.
  • Conference Object
    Numerical Analysis of Planar Cam Follower Mechanisms
    (IFToMM, 2012) Kiper, Gökhan; Huang, Chintien; Söylemez, Eres
    Given planar cam profiles and follower types, this paper analyzes their displacement diagrams numerically. The algorithm is based on the concept that a cam and its follower must have a common normal at the contact point. Instead of using kinematic inversion, this paper directly calculates contact points in the fixed coordinate system. This paper demonstrates a straightforward approach for motion analysis when discrete cam profile data points and link lengths are available. We implement the method by using the spreadsheet program Microsoft Excel®, which is well-suited for dealing with discrete data points. The results given in this paper can easily be employed in reverse engineering applications and adapted in undergraduate curriculum.
  • Article
    Citation - WoS: 7
    Citation - Scopus: 8
    Polyhedral Linkages Obtained as Assemblies of Planar Link Groups
    (Springer Verlag, 2013) Kiper, Gökhan; Söylemez, Eres
    The study aims to devise means of obtaining polyhedral linkages for homothetic deployment of polyhedral shapes by embedding planar link groups in faces of the polyhedral shape of interest. The questions of which polyhedral shapes may be suitable for such a pur-pose and what are the compatibility conditions for spatially assembling planar link groups are addressed. Homohedral and tangential polyhedral shapes are found to be suitable for the task and some examples of linkages are worked out.
  • Book Part
    Citation - WoS: 9
    Citation - Scopus: 10
    Kinematic Design of a Reconfigurable Deployable Canopy
    (Springer Verlag, 2014) Kiper, Gökhan; Gürcü, Fulya; Korkmaz, Koray; Söylemez, Eres
    A reconfigurable and deployable mechanism is proposed for a canopy which can also be used as a tent or a semi-open structure. The proposed single degree-of-freedom mechanism has four as-sembly modes. The conditions for deployment and reconfiguration of the mechanism are derived. These conditions impose three equality and two inequality constraints on the 11 design parameters of the mechanism. A virtual model of the mechanism is constructed in Excel for design and simulation purposes. A computational case study is presented.