Makina Mühendisliği Bölümü Tez Koleksiyonu: Güncel gönderi
Toplam kayıt 179, listelenen: 61-80
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Thermal Behavıor of Lıthıum-Ion Batterıes Under Normal and Abuse Operatıng Condıtıons
(Fen Bilimleri Enstitüsü, 2022)This doctoral thesis investigates the electrical and thermal behaviors of Li-ion battery cells during the normal and abnormal conditions using the experimental and modeling methods. First, various standard battery tests ... -
Fınıte Element Method Correlatıon Of Damage Tolerance Tests For Composıte Sandwıch Structures
(Fen Bilimleri Enstitüsü, 2022-12-20)In this study, damage tolerance and impact responses of a sandwich composite aircraft radome (radar dome) were determined numerically and experimentally at different energy levels. The sandwich composite was composed of ... -
Multibody Simulation of Coupled Aerodynamics and Structural Model of a Helicopter Main Rotor
(Fen Bilimleri Enstitüsü, 2023-02-02)The use of helicopters has been on the rise since their invention, particularly due to their ability to perform axial and hover flights. However, designing a helicopter rotor is a complex process, as it involves understanding ... -
Investigation of the Effect of Aging Under Stress on the Shape Memory Properties of NiRich NiTiHf High Temperature Shape Memory Alloy
(Fen Bilimleri Enstitüsü, 2022)Shape memory alloys (SMAs) are extraordinary materials having very high shape or strain recovery capabilities via martensite-austenite phase transformation. The shape recovery capability of SMAs can be effectively exploited ... -
Random Vibration Fatigue Analysis of Brackets Installed on Tracked Land Vehicle
(Fen Bilimleri Enstitüsü, 2022)Fulfilling the operational static requirements may not be enough for the materials used in engineering applications. Generally, failures occur due to dynamic loadings, especially in the military environments. If these ... -
Predicting Fatigue Life of a mount of a Device with Shock Absorber
(Fen Bilimleri Enstitüsü, 2022)All aircraft operate under vibration loads and these loads cause vibration-induced fatigue damage to the parts. Fatigue damages are dangerous because they occur suddenly without giving a warning before, for this reason ... -
Simulation-Based Testing and Evaluation of Automated Vehicle Motion Planning and Control Algorithms
(Fen Bilimleri Enstitüsü, 2022-05-23)Automated vehicles can help to reduce accidents, stress on the driver and the ecological footprint of vehicles by utilizing motion planning and control algorithms. Ensuring the safety and comfort of drivers and passengers ... -
A Dummy Head And Neck Model for Both Frontal and Rear Impacts
(Fen Bilimleri Enstitüsü, 2022)Dummies are calibrated test instruments used to measure human injury potential and determine dynamic behaviour of anatomical parts of the human in vehicle crashes. There are seperate dummies available for frontal and rear ... -
Development of a Gas Turbine Performance Software Including Sub-Idle Region and Starting Process
(Eğitim Bilimleri Enstitüsü, 2022)This study aims to develop a computer software to mathematically model a gas turbine engine's design point, steady state off-design and starting phases. Having a computer simulation software is crucial for a engine development ... -
Influence of Cold Rolling and Subsequent Annealing Processes on the Functional Fatigue Properties of High Temperature NiTiHf Shape Memory Alloys
(Fen Bilimleri Enstitüsü, 2022-06)Shape memory alloys are very special alloys that can be used as actuators in various applications due to their capability of returning to a prearranged shape via heating under applied load. Their high power per weight ratio ... -
Analysıs of a Bırd Strıke on the External Fuel Tank of a Jet Traıner Aırcraft
(Fen Bilimleri Enstitüsü, 2022)Bird strike is defined as a collision between a bird and an air vehicle during flight, take-off of landing. According to statistics, a bird strike occurs once every 2000 flights. [1] A collision with a bird during flight ... -
Traınıng Effect On The Two-Way Shape Memory Behavıor Of Nıtıhf Hıgh Temperature Shape Memory Alloy
(Fen Bilimleri Enstitüsü, 2022)Shape Memory Alloys (SMAs) with transformation temperatures (TTs) higher than 100°C are generally utilized for high-temperature actuation applications in the aerospace industry and are called as High-Temperature Shape ... -
Adaptive Car Seat Control for Whiplash Mitigation
(Fen Bilimleri Enstitüsü, 2022)Whiplash is one of the mostly encountered injuries in rear impacts in road-traffic accidents, which is typically characterized by neck pain due to stress and strain in the soft tissues. A smart system design, which can ... -
Mechanical Material Characterization and Identification of Forming Parameters of Aa2198-T3s1 Aluminum-Lithium Alloy
(Fen Bilimleri Enstitüsü, 2022)Al-Li (Aluminum-Lithium) alloys have become the focus of the aerospace industry due to their low density and high elasticity modulus, excellent corrosion resistance, high hardness, high fatigue crack growth resistance, and ... -
Role Of Warm Rollıng Process On The Cyclıc Stabılıty Of Hıgh-Hf Content Nıtıhf Shape Memory Alloys
(Fen Bilimleri Enstitüsü, 2022)Shape Memory Alloys (SMAs) are special materials due to their shape recovery behaviors. SMAs remember their original shape after being deformed in their low temperature martensite phase and then heated back to their high ... -
An Examination Of The Resistance Spot Welding Process Of The Ultra-Hıgh-Strength Steel Wıth Experımental And Numerıcal Methods
(Fen Bilimleri Enstitüsü, 2022)Since ultra-high-strength steels are being preferred in the automotive industry, the weldability of these steels has been gaining importance. When the scientific literature on the resistance spot weldability of UHSS is ... -
İmprovement Of The Fatigue Strength Properties Of En-Aw 6082 Aluminum Alloy By Means Of Deep Rolling
(Fen Bilimleri Enstitüsü, 2022)In this study, fatigue properties of EN-AW 6082 aluminum alloy were altered using T6 heat treatment and deep rolling application. At first, artificial aging schedules were investigated and most optimal schedule for subsequent ... -
Evaluation of Multilayer Insulation Performance Equations Available in the Literature
(Fen Bilimleri Enstitüsü, 2022)MLI blankets are the thermal insulation materials used in cryogenics, spacecraft applications and many other sectors. In literature, there are several equations to predict the thermal performance of MLI blankets. In the ... -
Had Bazlı Parametrik Eniyileme Metoduyla Bir Kanadın Aerodinamik Performansının Arttırılması
(Fen Bilimleri Enstitüsü, 2022)In this study, the aerodynamic shape of ONERA M6 wing is optimized using the response surface method. The aim of the study is to optimize parametrically the aerodynamic shape of the aforementioned wing in such a way as ... -
Investıgatıon of The Effects of Structural Nonlınearıtıes on the Aeroelastıc Stabılıty of Two Dımensıonal Aırfoıl
(Fen Bilimleri Enstitüsü, 2022)In this thesis, the effects of nonlinear structural components on the aeroelastic stability of a 2D airfoil section which is studied in the academic and industrial environments since the theoretical foundation that was ...
