Güncel Gönderiler: Makine Mühendisliği Bölümü Koleksiyonu
Toplam kayıt 99, listelenen: 61-80
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Hydrodynamic aspects of oscillating flow through porous media consisting of steel spheres
(Springer International Publishing, 2014)Hydrodynamic aspects of oscillating flow through porous media are investigated within the scope of this experimental work where water is used as the flow medium. Friction factors are found reducing the data of hydrodynamic ... -
A Practical Tool for Evaluating Refrigeration Systems Using R-134a
(2017)Bu teorik çalışmada R-134a (Tetrafloretan, klor içermeyen bir soğutucu akışkan) kullanılan buhar sıkıştırmalı soğutma çevrimi 100-200 kPa buharlaştırma basıncı aralığında, 0.8-1.6 MPa yoğuşturucu basıncı aralığında olmak ... -
Three-parameter (3P) weibull distribution for characterization of strength of ceramics showing R-Curve behavior
(Elsevier Sci Ltd, 2021)Strength distribution of advanced ceramics is commonly characterized by two-Parameter (2P) Weibull distribution. However, deviation of strength distribution from 2P-Weibull distribution may occur in ceramics due to various ... -
Data-Driven Generative Design Integrated with Hybrid Additive Subtractive Manufacturing (HASM) for Smart Cities
(Springer, 2021)Generation of smart cities that considers environmental pollution, waste management, energy consumption and human activities has become more important in recent years since it was first introduced in the 1990s. In the smart ... -
Fuel or acceleration: A pareto design procedure for ships
(CRC Press/Balkema, 2018)Ship design, as all other designs, is continuously changing. The design method used in this study is to calculate ship resistance and ship motion with algorithms and then to calculate the dynamic effects such as acceleration, ... -
Multi Objective Design of Ships; A Pareto Procedure
(Springer Science and Business Media Deutschland GmbH, 2021)The design calculations for a displacement type vessel and for a planing hull are done for the main dimensions, starting with a fuel and acceleration criteria. A large number of vessels are simulated with the help of ... -
Weighted approximation by q-Ibragimov-Gadjiev operators
(Univ Osijek, Dept Mathematics, 2020)The present paper deals with a q-generalization of Ibragimov-Gadjiev operators, which were constructed by Ibragimov and Gadjiev in 1970. We study convergence properties on the interval [0, infinity) and obtain the rate of ... -
Second-order wave diffraction by horizontal rectangular barriers
(2011)A complete second-order analytical solution for the nonlinear diffraction of waves by 2-D rectangular cylinders fixed at the free surface of finite-depth waters is presented. As a sequel to a previous linear treatment of ... -
A numerical study on squat of a wigley hull
(2011)A numerical study is conducted to calculate the squat for a wigley hull. An approach based on slender body theory is used to convert the three dimensional ship problem into a series of two dimensional problems in cross ... -
Powering and seakeeping characteristics of a displacement hullform with waterline parabolization
(2010)Waterline parabolization is a design procedure used for displacement vessels to decrease the wave resistance of the hullform through the addition of amidships bulbs. The bow and shoulder wave system of a parent hullform ... -
Comparison of two base-potentials for a slender-body method
(2012)The effects of two base-potentials on the accuracy of a slender-body method are studied in this paper. In the formulation for this method which is developed for the slender ships, the velocity potential is decomposed into ... -
Parabolization and structural integrity of side bulb applied to a platform supply vessel
(DTU Mechanical Engineering, Technical University of Denmark, 2016)The waterline parabolization is a hull form-optimization method, Calisal et al. (2002) reported a 10% decrease in the effective horse power at Fr = 0.275 for a coaster tanker. The present study was made for an oil platform ... -
Comparison of Additive Protective Layer On the Cylinder Liner Surface Using Diesel Engine and Pin-On-Plate Test Rigs
(Scibulcom Ltd, 2011)In this research, the layer formation of additives on the surface of cylinder liner (single cylinder Diesel engine liner operated 22 h) was examined by using binocular, optical, scanning electron microscope and energy ... -
Effect of Additive Level On the Surface of Diesel Engine Cylinder Liner
(Scibulcom Ltd, 2011)In this research the surface of the cylinder liner was examined from metallurgical standpoints, using specimens cut from real engine component (single cylinder diesel engine liner operated 22 h), in order to identify the ... -
Z-symmetric manifold admitting concircular Ricci symmetric tensor
(Springer Heidelberg, 2020)This paper deals with Z-symmetric Riemannian manifolds with concircular Ricci symmetric tensor. In the first section, we give an introduction of Z-symmetric manifold. In the second section, the definition of concircular ... -
Pseudo Conharmonically Symmetric Spacetimes
(Univ Kragujevac, Fac Science, 2018)In the present paper, firstly, the definition of pseudo conharmonically symmetric Riemannian manifold is given. In the second section, some theorems about these manifolds are proved. In the third section, pseudo conharmonically ... -
Investigation of formability of HC380LA material via the TPIF-RL incremental forming method
(Taylor & Francis Ltd, 2020)Prototype parts can be produced rapidly and at low cost using the incremental forming method. The most important problem with this method is that it causes undesirable variations in wall thickness. Various methods have ... -
Numerical simulation of transient heat transfer in friction-stir welding
(Edizioni Ets, 2018)In this numerical study, three dimensional transient heat transfer analysis of Friction Stir Welding of two 8mm-thick AA-6061-T651 (an aluminum alloy) slabs has been performed. The numerical tool is the commercial package ... -
Numerical modeling of friction stir welding using experimental temperature data
(Ice Publishing, 2020)In this study, time-dependent heat-transfer analysis of friction stir welding of AA 6061-T651 plates was carried out. For this purpose, the Comsol code was utilized, by which the domain was modeled as a rectangular aluminum ... -
Effect of operational parameters on incremental forming of low-alloy sheet metals and its optimisation
(Taylor & Francis Ltd, 2021)Incremental forming is a method with great forming potential. With this method, especially Low-Alloy Sheet Metals prototypes can be produced. Low-Alloy Sheet DC01, one of the metals, is widely used in the machinery industry. ...
