Erişim şekli için "info:eu-repo/semantics/closedAccess" Makine Mühendisliği Bölümü Koleksiyonu listeleme
Toplam kayıt 35, listelenen: 1-20
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Analysis of the residual stresses and deformations during the autogenous GTAW process
(Emerald Group Publishing Ltd, 2021)Purpose The gas tungsten arc welding (GTAW) process is a widely used process that produces quality weldments. But the high heat generation from the GTAW arc can cause extreme temperatures as high as 20,000 degrees C. The ... -
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 ... -
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 ... -
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 ... -
A Detailed Analysis of Ideal Rankine Steam Cycle
(Amer Soc Naval Eng Inc, 2016)In this theoretical work, the ideal Rankine cycle using water vapor is studied in detail considering a condenser pressure range of 10-80 kPa, a boiler pressure range of 3-15 MPa and a superheater temperature range of 350-600 ... -
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 ... -
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. ... -
Estimating Power Output from a Tidal Current Turbine Farm with First-order Approximation of Hydrodynamic Interaction between Turbines
(Taylor & Francis Inc, 2010)This article presents a numerical approach to estimate power output from a tidal current turbine farm with first-order approximation of hydrodynamic interactions between multiple turbines. An example study is conducted by ... -
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, ... -
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 ... -
An Integrated Approach to Increase Marine Transportation Safety in Harbor Areas
(Marine Technology Soc Inc, 2017)The importance of marine transportation safety in harbors and waterways access has become a very serious governmental concern in recent years, with the holding of special conferences on major marine disasters, increasing ... -
An integrated model for estimating energy cost of a tidal current turbine farm
(Pergamon-Elsevier Science Ltd, 2011)A tidal current turbine is a device for harnessing energy from tidal currents and functions in a manner similar to a wind turbine. A tidal current turbine farm consists of a group of tidal current turbines distributed in ... -
Investigating the influence of tool shape during FSW of aluminum alloy via CFD analysis
(Chinese Inst Engineers, 2016)This paper describes the application of the CFD code, Comsol Multiphysics, to modeling the 3-D metal flow in friction stir welding of AA 2024-T3 aluminum alloy in order to investigate the influence of tool shape over the ... -
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 ... -
Mathematical programming basis for ship resistance reduction through the optimization of design waterline
(Springer Japan Kk, 2017)It has been more than a decade since Calisal et al. (J Ship Res 46(3):208-213, 2002) presented their concept of wave resistance reduction by allowing an increase in the beam of a ship accompanied by smoothing the shoulders. ... -
Modeling of twin-turbine systems with vertical axis tidal current turbine: Part II-torque fluctuation
(Pergamon-Elsevier Science Ltd, 2011)We recently showed the advantage of using a numerical system to extract energy from tidal currents by developing a new twin-turbine model (Li and Calisal, 2010a). Encouraged by this result, we decided to use this model to ... -
Modeling of twin-turbine systems with vertical axis tidal current turbines: Part I-Power output
(Pergamon-Elsevier Science Ltd, 2010)Recent interest in the tidal current industry has driven development of the prototype from the stand-alone turbine to the twin-turbine system. In this paper, we develop a numerical model to systematically analyze the ... -
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 ... -
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 ... -
Numerical simulation of pressure loss in porous media in oscillating flow
(World Scientific and Engineering Academy and Society, 2018)In this study, the pressure loss in two types of porous media for both unidirectional and oscillatory flows is analyzed using commercial software Comsol©. The numerical results are compared with those obtained in the ...