Boğaziçi Üniversitesi Tezleri: Recent submissions

  • Robust feedforward control design for lateral vehicle dynamics 
    Tanıker, Semih. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    In this thesis, robust feedforward controller is designed for active steering which is an alternative vehicle dynamic control method to active braking control. The aim of this study is to increase performance and robustness ...
  • Side-slip estimation for ESP applications 
    Şahin, Can. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    ESP (Electronic Stability Programme) applications require reliable data about vehicle state in order to operate correctly. One of these data is the vehicle side-slip angle. In this study, a nominal and a robust side-slip ...
  • Finite element modeling of synthetic fiber-ropes 
    Akalp, Umut. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The synthetic fiber ropes are used in many fields such as cord fabrics, industrial fabrics, power transmission systems, tires and off-shore applications. The ropes are formed by twisting a small number of yarns which are ...
  • Tuned mass damper appications on slender structures to improve earthquake and wind response 
    Doğan, Veysel. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    The subject of the study is to improve earthquake and wind response of slender structures by using Tuned Mass Damper (TMD) applications. TMD application on main structure reduces the structural response amplitude by creating ...
  • Distributed control of strings of vehicles in automated highway systems 
    Şahin, İsmail Hakkı. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this thesis, distributed control of vehicular arrays is studied. The main approach is to design distributed controllers, where the vehicle interconnections repeated in the controllers. The spatially distributed nature ...
  • Segregation and interface stability in germanium-silicon single crystal alloys 
    Dario, Aidin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Melt growth allows large-scale production of semiconductor crystals. However, growth of Ge-Si single crystals from melt is extremely sensitive to experimental parameters. Obtaining accurate thermal data near the solid/liquid ...
  • Fracture mechanics analysis of shape memory alloys using finite elements 
    Şimşek, Miray. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    The objective of this work is to study phase transformation and its effects on macroscopic fracture behavior of superelastic shape memory alloy, Nitinol, using finite elements. For this purpose, A 2-D edge-cracked homogenous ...
  • The effects of different casting parameters on the microstructure and mechanical properties of titanium dental implant 
    Soydemir, Necati. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Dental implants are used to replace the missing teeth instead of dental bridges. Titanium (Ti) and its alloys are suitable to be the material for dental implants due to their excellent mechanical properties, good corrosion ...
  • Factors influencing the heat treatment of a high carbon, high chromium die steel 
    Baharoğlu, Vahan. (Thesis (M.S.)- Robert College. Faculty of Graduate School of Engineering, 1969., 1969.)
  • Mechanical properties of non-crimp fabric (NCF) fiberglass reinforced composite materials manufactured by using vacuum infusion process 
    Çalışkan, Serkan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Non-crimp fabric (NCF) fiber reinforced composite materials that are composed of textile preforms consisting of multiaxial layers of straight fiber bundles with different orientations stitched together by knitting yarns, ...
  • Transformation induced crack closure and fatigue life analysis of shape memory alloys using finite elements 
    Altan, Nadir Can. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Fatigue crack propagation behavior of shape memory alloys is investigated using finite elements. Fatigue crack growth rate is numerically determined in terms of effective stress intensity factor range and maximum stress ...
  • Design improvement for rear axle cover 
    Bank, Özgür. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this thesis, leakages on the rear axle covers used in Ford vehicles are investigated. Main reasons of leakage are discussed and problem is solved by improving rear axle cover design and by improving cover bolt performance. ...
  • Assessment of the nitriding process paramaters to improve the wear resistance of selected steels 
    Yaman, Onur. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Liquid nitriding is one of the most popular heat treatment methods due to its application temperature which is generally in the ferritic region. This results in a good dimensional control after nitriding. Still, it is ...
  • The tensile and compressive properties of four experimental magnesium alloys assessed for light duty truck oil pans 
    Tanzer, Mehmet Barış. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Light weight design has a great importance in the development process of new automobiles. In recent years, the oil prices have increased and the exhaust gases of ignition engines have become a bigger concern for global ...
  • Two phase pipe flows in fuel tank refueling 
    Boyacı, Deniz. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Automotive fuel tank refueling is modelled with FLUENT software which is a commercial CFD solver in fluid mechanics. Fuel tank components are modeled geometrically such as the fill pipe, vent pipe and tank dome. Additionally, ...
  • Application of radial basis functions method to advection-diffusion and viscoelastic flow problems 
    Tunçay, Yusuf. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    The objective of the thesis is to demonstrate an application of radial basis functions method to linear and nonlinear advection-diffusion and viscoelastic flow problems. As far as the radial basis functions method is ...
  • 2-D mathematical modelling of hydrogen storage in metal hydrides 
    Küçük, Gülşad. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this study a numerical model which simulates heat and mass transfer processes of hydrogen absorption in LaNi5 is studied. Energy balance method is used for discretizing the heat equation. Transient heat conduction with ...
  • Mechanical properties of boron nitride nanotube / epoxy polymer composites 
    Kurtuldu, Güven. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Boron nitride nanotubes (BNNTs) have attracted significant interest of the scientific world due to their remarkable mechanical and thermal properties. They have high modulus and high strength similar to carbon nanotubes. ...
  • Mechanical engineering fluid mechanics and hydraulics experimentation and laboratory design for Robert College 
    Erataman, Türkay. (Thesis (M.S.) - Robert College. Faculty of Graduate School of Engineering, 1965., 1965.)
  • Stress analysis of a solid propellant rocket motor 
    Yıldırım, Halid Can. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    The aim of this study is to perform structural analysis of a solid propellant rocket motor using the finite element method and to determine the effects of aging on the analysis results. Thermal and pressure loadings occurring ...