Browsing Makina Mühendisliği Bölümü Tez Koleksiyonu by Title
Now showing items 132-151 of 160
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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 ... -
REDUCTION OF TRANSVERSE VIBRATION OF A SERPENTINE BELT SYSTEM: MODEL PREDICTIVE CONTROL OF A BELT TENSIONER
(Fen Bilimleri Enstitüsü, 2017)The serpentine belt systems are widely used in today’s automotive industry. The preference of serpentine belts in the market over the traditional belts due to the advantages such as consuming less space in the engine ... -
Resıstance Spot Weldıng Of Ultra Hıgh Strength Steel Sheets Wıth Alumınum Materıals
(Fen Bilimleri Enstitüsü, 2023-01-24)This thesis aims to examine the joining of steel sheets with a yield strength of up to 1500MPa and aluminum materials by using resistance spot welding (RSW). Effect of electrode geometry and its combinations on the quality ... -
Robust Autolanding System Design for a Combat Aircraft on the Ground
(Fen Bilimleri Enstitüsü, 2023-02-01)Within the scope of this thesis, a 6-degree-of-freedom model of a combat aircraft is created. Apart from the flight dynamics, landing gear dynamics on the ground are also modeled. After that, a robust autolanding system ... -
Robust data-driven fixed-order H∞ controller synthesis using convex optimization
(Fen Bilimleri Enstitüsü, 2019)The main objective of this thesis study is to develop fixed-order (low-order) structured controller design methods for frequency domain non-parametric uncertain systems using convex optimization. The majority of the available ... -
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 ... -
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 ... -
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 ... -
Smart Car Seat Design for Safety and Comfort
(Fen Bilimleri Enstitüsü, 2019-07)In this work of thesis, whiplash injury and its relation with rear end accidents are studied. After brief explanation on what whiplash injury is and its effects on both people’s health and economy, injury mechanism is ... -
Steering Optimization of an 8x8 Vehicle
(Fen Bilimleri Enstitüsü, 2019)In this work, a method for obtaining optimal steering angles for a multi-axle vehicle is proposed. The tire maximum steering angles are optimized for low turning radius and low lateral slip angles. The optimization process ... -
The Determination of The Functional Fatigue Life of High Temperature Shape Memory Alloys After Cold Rolling Process
(Fen Bilimleri Enstitüsü, 2020-06)Shape memory alloys (SMA) are unique materials due to their shape recover characteristics. These materials can work against load with their shape recover ability, which lead them to be used as actuators in aerospace ... -
The Determination of The Functional Fatigue Life of High Temperature Shape Memory Alloys After Cold Rolling Process
(Fen Bilimleri Enstitüsü, 2020-06)Shape memory alloys (SMA) are unique materials due to their shape recover characteristics. These materials can work against load with their shape recover ability, which lead them to be used as actuators in aerospace ... -
The Effect Of Deep Rollıng Process Parameters On Subsurface Hardness Dıstrıbutıon In Deep Rollıng Of En Aw6061 Alumınıum Alloys
(Fen Bilimleri Enstitüsü, 2020-06-10)Aluminium and aluminium alloys are widely used in production of electrical conductors, owing to their mechanical strength and electrical conductivity properties. Also, aluminium is cheaper and lighter than copper. Thus, ... -
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 ... -
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 ... -
Thermal Modeling of Lithium Ion Batteries
(Fen Bilimleri Enstitüsü, 2017)In this study, a 3-D computational fluid dynamics model (based on ANSYS Fluent 14.5 CFD program) was developed along with a problem specific experimental procedure for investigating the thermal behavior of lithium ion ... -
Topology Optimization of Slider-Crank Mechanism Under Dynamic Loading
(Fen Bilimleri Enstitüsü, 2021)Parts in the mechanical system can be optimized individually regarding the static or modal analysis. However, during the motion of an assembly, parts move together and applied forces and configuration of assembly changes ... -
Transmission Angle in Compliant Four-Bar Mechanisms
(Fen Bilimleri Enstitüsü, 2019-03-21)Transmission angle is an important parameter in defining quality of motion and force transmission of a mechanism. However, there is only one study available in the literature which is the transmission angle of a compliant ... -
Transıent Response Of Heated Sandwıch Composıte Structures Wıth Dıfferent Core Materıals
(Fen Bilimleri Enstitüsü, 2020-07)Sandwich composite structures are widely preferred in modern aircraft exterior and interior structures because of their lightweight and high strength capability. Aircraft structures might be exposed to harsh thermal ... -
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 ...
