Boğaziçi Üniversitesi Tezleri: Recent submissions

  • Optimization of forging processes with a concurrent approach 
    Öztürk, Murat. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    With the increasing complexity of manufacturing processes and the interrelations between the different phases, the possibility of a phase being affected by a preselected design variable is very high. In that case, the ...
  • Cure kinetics modelling and cure shrinkage behaviour of AS4/8552 
    Tuğutlu, Mehmet. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this work, the reaction kinetics and through-the-thickness cure shrinkage upon curing of an AS4/8552 epoxy resin system have been studied. The study included two major works. Firstly, dynamic and isothermal experiments ...
  • Modeling of circular counterflow swissroll combustor for MEMS application 
    Özgül, Emre. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    A two-dimensional numerical model is generated for simulating combustion and heat transfer in "Spiral Swiss roll" combustors. In this research, the most important purpose is to investigate the micro-scale combustion and ...
  • Control and optimization of cure cycle for thick-sectioned thermoset composites manufacturing 
    Ünlühisarcıklı, Özer. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The objective of this study was to minimize the temperature gradients encountered in thick-sectioned thermoset composites manufacturing. For this purpose, a finite difference analysis based on mathematical models representing ...
  • Experimental and numerical study of the effect of design and processing parameters on spring-in in composite parts 
    Çınar, Kenan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Residual stresses appearing during cure of thermoset composite laminates lead to distortions such as spring-in. The dimensional changes in the produced parts cause the parts not to mate closely with the other parts in the ...
  • Modeling of rectangular counter flow heat-recirculating combustor 
    Saracoğlu, Bayındır Hüseyin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The meso-scale, 3.5 turn Swiss-roll type counter flow heat recirculating combustor is modeled by a two dimensional finite-volume computational fluid dynamics (CFD) solver. The solver includes momentum, continuity, energy ...
  • Wind power :|the utilization of wind rotors for the generation of power in underdeveloped areas 
    İnelmen, Erol, 1940- (Thesis (M.S.) - Robert College. Faculty of Graduate School of Engineering, 1965., 1965.)
  • Coupled analysis of turbomachinery blades 
    Düz, Bülent. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Three-dimensional analysis of uid ow over turbomachinery blades and the deformation of the blades under aerodynamic loads are modeled and simulated using computational techniques. Decomposition into computational sub-domains ...
  • Modeling of micropipette aspiration of flaccid human red blood cell using finite elements 
    Akyıldız, Ali Çağdaş. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    This thesis aims to analyze the steady state deformation of flaccid red blood cell (RBC) in micropipette aspiration (MA) experiment using finite elements (FE). Three different geometries, namely infinite plane, disk and ...
  • Quasi-LPV modeling and control of twin rotor multiple input multiple output system 
    Baştürk, Halil İbrahim. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The aim of this thesis is to design a Linear Parameter Varying (LPV) controller for Twin Rotor Multiple Input Multiple Output System (TRMS) which has highly nonlinear and cross coupled mathematical model, using Linear ...
  • Design of composite laminates for optimum frequency response 
    Kayıkçı, Rengin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    In this study, natural frequency response of symmetric laminated composite plates was optimized. An analytical model accounting for bending-twisting effects was used to determine the laminate natural frequency. In this ...
  • Domain decomposition analysis of aerodynamic coupling 
    Aydın, Özkan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The main objective of this research is the computational modeling and analysis of aerodynamic-coupling effects of multiple bodies in motion in a fluid using domain decomposition techniques. Simulation of such a flow field ...
  • The precipitate evolution in the nickel-based superalloy IN738LC 
    Erdeniz, Dinç. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    IN738LC is a polycrystalline, nickel-based superalloy, which is widely utilized in a variety of applications such as jet engines and land-base gas turbines. This material provides high performance at temperatures above ...
  • Experimental and numerical investigation of tool-part interacions in composites manufacturing 
    Özsoy, Övül Özgü. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Composite parts may undergo some shape distortions due to the residual stresses generated during the cure cycle. This may cause difficulties in assembling composite structures. This experimental and numerical work is done ...
  • Effects of compatibilizer type and proceessing parameters on mechanical properties of polypropylene-clay nanocomposites prepared by melt mixing 
    İşlier, M. Bora. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The effects of compatibilizer type and the processing conditions on polypropyleneclay nanocomposite preparation by melt extrusion were investigated. The objective of the study was to optimize the nanocomposite formulation ...
  • Computational investigation of non-isothermal lid-driven flow in arc-shape cavities 
    Adli, Ali Reza Rezaei. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    This thesis is concerned with the numerical analysis of laminar unsteady flow and heat transfer in lid-driven arc-shape cavities with different aspect ratios for which the top lid, maintained at lower temperature, is driven ...
  • Combined longitudinal-torsional vibration of sandwiched piezoelectric ultrasonic transducers 
    Demir, Bülent Güven. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    In this thesis, combined longitudinal-torsional vibration of ultrasonic transducer using impedance matching method is studied. In combined vibration, two modes must resonate in the same frequency. Impedance matching method ...
  • Finite element analysis of bolted joint subjected to impact loading 
    Tanlak, Niyazi. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Mechanical components are commonly fastened together through bolts. Many times, they are subjected to impact loads in use. The behavior of the joints under these conditions should be known in a design process. The objective ...
  • The effects of alloying elements on the microstructure and annealing behavior of the twin-roll cast AA1050 strip 
    Karakoyun, Fatih. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    There are two main routes of sheet aluminum production DC casting and hot rolling route and continuous casting and cold rolling route. DC casting and hot milling route is the conventional way of production, the process is ...
  • Control of an obstacle avoider mobile robot using image processing 
    Kulgu, Turgay. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    This study investigates control of a mobile Lego robot moves towards to the specified target without hitting the obstacles with the help of image processing. An experimental set-up was designed and conducted for experiments. ...

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