Browsing Havacılık ve Uzay Mühendisliği by Issue Date
Now showing items 1-19 of 19
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Comparative experimental study on the modification of microstructural and mechanical properties of friction stir welded and gas metal arc welded EN AW-6061 O aluminum alloys by post-weld heat treatment
(Wiley-VCH Verlag, 2018)In this paper, the effects of post-weld heat treatment on modification of microstructures and mechanical properties of friction stir welded and gas metal arc welded AA6061-O plates were compared with each other. Gas metal ... -
Microstructure and mechanical properties of gas metal arc welded AISI 430/AISI 304 dissimilar stainless steels butt joints
(IOP Publishing, 2021)Nowadays, there is an increasing demand for the use of joining dissimilar metals in various industrial applications owing to the economic benefits and better joint performance. Ferritic stainless steel grades is a good ... -
A Multistage Cutting Tool Fault Diagnosis Algorithm for the Involute form Cutter Using Cutting Force and Vibration Signals Spectrum Imaging and Convolutional Neural Networks
(Springer, 2021)In a machining system, tool condition monitoring systems are required to get a high-quality product and to prevent the downtime of machine tools due to tool failures. For this purpose, tool condition monitoring systems ... -
CFD Simulations and External Shape Optimization of Missile with Wing and Tailfin Configuration to Improve Aerodynamic Performance
(Isfahan University of Technology, 2021)The wing of missile can be considered as an effective factor for determination of lift to drag ratio. However, there are few studies that investigate wing effect on missile aerodynamics. Therefore, the purpose of this study ... -
Aerodynamic Performance Improvement with Morphing Winglet Design
(Journal of aviation (Online), 2021)The aim of this study is to reduce unnecessary lift and minimize drag at the same time when the aircraft reaches a certain speed level by using the active morphing method during flight. In this study, the flight performance ... -
Shape modification of Ahmed body to reduce drag coefficient and determination of turbulence model
(Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 2021)In this study, the aerodynamic analysis of Ahmed body which is generic automobile model is performed to determine convenient turbulence model and reduce drag coefficient by modifying shape of model. For this ... -
Rulman Hasarlarının Titreşim ve Gürültü Analizi ile Tespiti
(Avrupa Bilim ve Teknoloji Dergisi, 2021)Rulmanlar, yüksek hızlarda ağır yüklerin taşınmasını sağlayan, aynı zamanda çok düşük yuvarlanma kayıplarına sahip olan dönel makinaların vazgeçilmez parçası olarak endüstride yaygın olarak kullanılan makine parçalarıdır. ... -
The prediction of surface roughness and tool vibration by using metaheuristic-based ANFIS during dry turning of Al alloy (AA6013)
(Springer, 2022)In this article, the adaptive neuro-based fuzzy inference system (ANFIS) model is developed to estimate the surface roughness (Ra) and tool vibrations (Acc) of AA6013 aluminum alloy during dry turning. Turning experiments ... -
A comparison of four machine learning techniques and continuous wavelet transform approach for detection and classification of tool breakage during milling process
(Canadian Science Publishing, 2022)In machining, the tool condition has to be monitored by condition monitoring techniques to prevent damage by the use of tools and the workpiece. Cutting forces acting on the tool between zero and maximum values cause the ... -
Characterizations of Microstructure and Properties of Dissimilar AISI 316L/9Ni Low-Alloy Cryogenic Steel Joints Fabricated by Gas Tungsten Arc Welding
(Springer, 2022)The demand for dissimilar joining of steel grades, namely austenitic stainless steels to low-alloy steels, may increase in near future owing to the fact that the storing of LNG is currently becoming a necessity, particularly ... -
Multi-pass butt welding of thick AISI 316L plates by gas tungsten arc welding: Microstructural and mechanical characterization
(Elsevier, 2022)Austenitic stainless steels exhibit excellent properties such as outstanding formability even at cryogenic temperatures, high mechanical properties and good corrosion performance. This makes them attractive for use in ... -
A study on microstructural and mechanical properties of gas tungsten arc welded thick cryogenic 9% Ni alloy steel butt joint
(Elsevier, 2022)Low alloy steel plates containing 9% Ni are generally preferred in the production of LNG storage tanks, due to their outstanding combination of properties such as excellent toughness, high ductility and crack re-sistance ... -
Passive Flow Control of Ahmed Body using Control Rod
(Universiti Malaysia Pahang, 2022)In the current study, numerical analysis of passive control flow with a control rod for Ahmed body is performed at different slant angles and velocities and placed rod locations on the slant surface. The aim of the study ... -
Investigation of the Effect of Side Devices and Crosswind Flow on Aerodynamic Drag of a Ground Vehicle
(Çukurova Üniversitesi, 2022)In the present study, effect of side devices and crosswind flow are investigated to observe aerodynamic drag coefficient for a simplified ground vehicle (Ahmed body) since it directly effects fuel consumption. When the ... -
Energy, exergy, and exergoeconomic analysis of a general UAV
(Inderscience Publishers, 2023)A 3E - energy, exergy, exergoeconomic - analysis of a rotary wing UAV that is used for general purpose has been accomplished in this study. In the study, a parametric investigation regarding the velocity, altitude and ... -
Virtual Investigation on the Response of Glare to Low Velocity Impact
(Institute of Electrical and Electronics Engineers Inc., 2023)Due to the increasing cost of experiments and the increased time required to complete the experimental process, it is more economical to conduct experiments in the form of virtual tests. Therefore, low velocity impact ... -
A new hybrid meta-heuristic optimization method for predicting UTS for FSW of Al/Cu dissimilar materials
(SAGE Publications, 2023)Joining of aluminum (Al) and copper (Cu) materials used in aerospace, automotive, chemistry, nuclear, electrical-electronic and energy sector with traditional fusion welding methods has some negative consequences. One of ... -
Microstructure and mechanical response of novel Co-free FeNiMnCrAlTi high-entropy alloys
(Elsevier, 2023)The present study investigates the microstructure and mechanical properties of the Co-free FeNiMnCrAlTi high-entropy alloy (HEA) after casting, homogenizing heat treatment, and hot rolling. The results show that the dendrite ... -
The effects of different wing configurations on missile aerodynamics
(Yildiz Technical University, 2023)In the present study, missile aerodynamic analysis is performed using different wing configurations at subsonic and transonic speeds. The wing is critical component in point of aerodynamic efficiency for a missile that ...
