Makina Mühendisliği Bölümü Tez Koleksiyonu: Recent submissions
Now showing items 21-40 of 179
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Design of a Rotary Union For Coolant Transfer to Radar System
(Fen Bilimleri Enstitüsü, 2023)In this thesis, a rotary joint for cooling fluid transfer to the radar system is developed. The design and analysis to meet the specified technical requirements were verified by tests. In dynamic sealing tests, the sealing, ... -
Investigation of Transition Flow Over S809 Airfoil Using Infrared Thermography and Numerical Methods
(Fen Bilimleri Enstitüsü, 2023-06)This thesis presents the results of an experimental and numerical study that investigates the detection of boundary layer transitional flow using infrared thermography and Computational Fluid Dynamics analysis. The ... -
Thermal Behavior and Performance of Lithium-ion Batteries at Low Temperatures
(Fen Bilimleri Enstitüsü, 2023)In this thesis, the performance and thermal behavior of a commercial lithium-ion battery were investigated experimentally at low temperatures. Identical batteries are subjected to 0.5C and 1.0C charge-discharge at three ... -
Design and Manufacturing of A Dryer Using Waste Heat From A Household Refrigerator
(Fen Bilimleri Enstitüsü, 2023)In this thesis, the dual use of a heat pump is examined in order to avoid waste of energy and reduce the equipment, volume, and cost used for both cooling food and drying clothes. Energy efficiency in household appliances ... -
Investigation of Performance of Proton Exchange Membrane Electrolysis With Photovoltaic Systems
(Fen Bilimleri Enstitüsü, 2023)Attention towards green hydrogen production has recently risen due to global warming and energy dependency concerns. Green hydrogen production relies on renewable energy sources to generate hydrogen for various applications, ... -
Nonlinear Finite Element Analyses on the Bolt Bending Deformation
(Fen Bilimleri Enstitüsü, 2024)Joining and assembly processes in mechanical design are performed by using permanent or non-permanent methods. Among the non-permanent techniques, threaded fasteners are commonly used mechanical components providing ... -
Numerical Analysis of Hydrodynamic Ram Phenomenon in Fighter Aircraft Fuel Tanks
(Fen Bilimleri Enstitüsü, 2023-09)When a high-velocity particle hits a liquid-filled chamber, it penetrates the chamber and transfers its kinetic energy to the liquid. Liquid moving in the chamber and high-energy shock waves propagating in the liquid can ... -
Finite Element Analysis of Beam-to-Beam Eccentric End Plate Connections
(Fen Bilimleri Enstitüsü, 2023-07-10)This study presents a broad investigation on eccentric end plates used for beam-to-beam connections by utilizing finite element analysis. This investigation is based on previous experimental work on beam-to-beam connections ... -
A Tuned Mass Damper Design Based on Eddy Current Damping
(Fen Bilimleri Enstitüsü, 2023)All dynamic structures encounter vibration during their operation. A structure experiences the vibration load in an amplified manner at structure’s natural frequencies. If the amplitude of vibration load is high enough, ... -
Weight Reduction and Material Characterization in A Part Used in Aviation Applications Produced by Additive Manufacturing Method
(Fen Bilimleri Enstitüsü, 2023)Optimizing design in the aviation sector without altering load paths, achieving fuel savings through weight reduction, reducing carbon footprint, and gaining high maneuverability for aircraft through such improvements ... -
Immersed Boundary Method for Rotorcraft Aerodynamics Using OpenFOAM
(Fen Bilimleri Enstitüsü, 2022)The rotorcraft CFD literature review showed that efficient, easy to apply, and computationally less expensive methods are still a need for the design and performance predictions of rotorcraft. Immersed Boundary Method ... -
A Novel Constant Force Compliant Gripper Design
(Fen Bilimleri Enstitüsü, 2023-04)The aim of this thesis is to design a novel constant-force compliant gripper mechanism. The design is a monolithic holding mechanism which is fixed on one side and free on the gripper side. The mechanism has four compliant ... -
Sensitivity Analysis of Material Parameters on the Micro-Scale Stress Distribution in Fiber Reinforced Composites
(Fen Bilimleri Enstitüsü, 2023)Knowing the mechanical behavior of fiber-reinforced composites are important since unidirectional (UD) composite materials have been widely used in many industries. Different methods in macro-scale and micro-scale have ... -
Handling Quality Oriented Fault Tolerant Longitudinal Flight Control Algorithm Design For A Jet Trainer Aircraft
(Fen Bilimleri Enstitüsü, 2023)In the scope of the thesis an alternative longitudinal flight control algorithm, which satisfies predefined stability and performance requirements, in case of a specific fault is aimed for a jet trainer aircraft. Base ... -
Crack Propagation During Actuation Cycles of The Nitihf High Temperature Shape Memory Alloys
(Fen Bilimleri Enstitüsü, 2023)Shape Memory Alloys (SMAs) are very special materials with their distinctive ability to recover their shape change by phase transformation via mechanical and/or thermal stimulations. When the alloy heated above a certain ... -
Determining the Effects of Transformation Induced Plasticity and Creep Plasticity on the Functional Fatigue Life of NiTiHf High Temperature Shape Memory Alloys
(Fen Bilimleri Enstitüsü, 2023)With their high work output during thermal cycling under load, NiTiHf high temperature shape memory alloys became promising candidates for smart actuator design for aerospace industry. However, high temperature applications ... -
Design, Fabrication and Control of A Novel Shape Memory Alloy (SMA)-Wire-Based Flexible Composite Actuator
(Fen Bilimleri Enstitüsü, 2023)Soft actuators are frequently seen in many design areas. They can adapt to the desired motion and do not harm the material they touch. These features give many ideas to designers. In this thesis, such a soft composite ... -
Investigation of Advanced Current Characteristics on Expulsion Formation and Characteristics of Resistance Spot Welded Advanced High Strength Steels
(Fen Bilimleri Enstitüsü, 2023)In this thesis, the experiments with HSLA600 which is widely used in industry will be investigated. Single, double and triple pulse welding will be applied to the materials to obtain the biggest, homogenous nugget geometry ... -
Electrospinning of Super Tough Nylon 6,6 Fibers and Their Use in Layered Composites
(Fen Bilimleri Enstitüsü, 2023)Despite their obvious advantages in applications that require a high strength-to-weight ratio, delamination problems in layered composite structures continue to be a major drawback. Interleaving the layers with films or ... -
Adjustment of the Thermal Expansion Coefficient of 3D Printed Composite Tools for Composite Overwrapped Pressure Vessels
(Fen Bilimleri Enstitüsü, 2023)A thermal mismatch problem between a curable composite and the tool material can negatively impact the cured product's geometrical precision and structural integrity, leading to insufficient quality or, even worse, reduced ...
