Mechanical Engineering / Makina Mühendisliği

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

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Subject: search.filters.subject.Dynamic mechanical analysis

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  • Article
    Analytical Dynamic Analysis of a Kinesthetic Haptic Device
    (Dokuz Eylül Üniversitesi, 2018) Dede, Mehmet İsmet Can; Maaroof, Omar Waleed Najm; Ceccarelli, Marco
    A hybrid-structured kinesthetic haptic device based on an R-CUBE mechanism and a serial spherical wrist mechanism is considered in this article. This device is designed to simulate point-type contacts on the user. Hence, only three-dimensional forces are simulated to the user through the R-CUBE mechanism. This paper presents the quasi-static force analysis, gravity compensation calculations and dynamic analysis of the R-CUBE mechanism to serve for better understanding the capabilities of the mechanism and to be used in haptics controller development in the future studies. Making use of the derived dynamic equations, torque requirements from the actuators are examined for use in the haptic application scenarios.
  • Article
    Citation - WoS: 38
    Citation - Scopus: 42
    Layered Clay/Epoxy Nanocomposites: Thermomechanical, Flame Retardancy, and Optical Properties
    (John Wiley and Sons Inc., 2008) Kaya, Elçin; Tanoğlu, Metin; Okur, Salih
    In this study, layered clay/polymer nano-composites were developed based on epoxy resins and montmorillonite as the nanoplatelet reinforcement. Clay particles were treated with hexadecyltrimethylammonium chloride (HTCA) through an ion exchange reaction. In this way, Na+ interlay er cations of the clay is exchanged with onium cation of the surfactant that turns the hydrophilic clays (MMT) to organophilic (OMMT) characteristics. Thermal analysis results revealed that the glass transition temperature (Tg) and the dynamic mechanical properties including the storage and loss modulus of the neat epoxy resin increases by the incorporation of clay particles. It was also found that flame resistance of the polymer is improved by the addition of the clay particles.