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Year 2024 Volume 5 Issue 2
Environmentally responsible service production in the field of aviation: Academic studies conducted in Türkiye
Tarih: 31-12-2024 | Yazar(lar): İlkay Yılmaz, Güzide Karakuş
Abstract (Özet)
In today’s conditions, where the consequences of climate change are increasingly felt, the concept of environmentally conscious production is gaining more importance. As population growth leads to increased demand for goods and services, production-related environmental impacts rise, and environmental degradation becomes irreversible, negatively affecting all dimensions of sustainability. The aviation sector, while being one of the most significant service industries contributing to the development of global tourism and trade, is also among the sectors with the highest environmental impacts. While industry stakeholders declare that studies are being carried out in various areas to reduce environmental impacts, academic studies also draw attention to the importance of the subject and recommend that research be developed. This study aims to examine academic studies implemented in Turkey within the scope of environmentally conscious service production in the aviation field. Within this scope, the academic publications determined within the scope of the review were subjected to content analysis and the sample of the research was created with 14 articles and 11 postgraduate theses, a total of 25 studies published between 2014 and 2023.These academic studies were categorized based on researchers' universities and academic units, publication years, fields of study, keywords, research methods, and research categories. The results of the study reveal that the majority of these works were conducted in the field of social sciences, specifically in aviation management. Furthermore, an increase in the number of studies over the years was observed, while it was detected that very limited research has been conducted in the categories of pollution prevention and human resource development.
Travel to the era of digital assets: Flight tickets with Blockchain technology
Tarih: 31-12-2024 | Yazar(lar): Mutlu Can Soydan, Hakan Rodoplu
Abstract (Özet)
Blockchain technology is becoming increasingly popular in the aviation industry due to its potential to create a seamless travel experience and provide benefits on a global scale. The primary purpose of this study is to comprehensively understand such digital assets and prioritize potential actions for airline businesses. The study adopts an exploratory research paradigm and seeks to answer the question: "Can digital assets be used as airline tickets, and if so, how should the implementation process be conducted?" The VentureRadar database will be used as a methodological reference. A new framework, the "TBC Model" (Transition to Blockchain), is proposed for the first time in this study to guide businesses in their efforts. The model suggests a structured approach. In the first step, airlines explore blockchain technology and integrate it with a new interface. In the second step, they design smart contracts to manage the booking process. In the third step, businesses create or adopt a payment gateway to support cryptocurrency payments and offer it to passengers if it functions as intended. In the fourth step, companies regularly maintain and update the system to ensure its security. This study is unique in being the first in the country to examine the aviation sector with such recommendations, contributing significantly to academic literature.
Low velocity impact response of CFRP and Al2024-T3 helicopter blade
Tarih: 31-12-2024 | Yazar(lar): Sakine Kurtar, Gamze Yaman, Dilara Nur Bektaş, Seda Nur Özsunar, Mesut Uyaner
Abstract (Özet)
A high level of safety is demanded in response to the foreign object damage (FOD) problem frequently encountered in aviation. For this reason, in this study, the effect of stone impact on a helicopter blade performed within the scope of FOD is investigated. Considering the actual size of the propeller, a stone impact is applied to a certain section and the mechanical behavior of the propeller is examined according to the material type. In this direction, the Bo-105 helicopter blade with the NACA-23012 profile is taken as a reference, and a 3D drawing of the blade is made in the SolidWorks program. The behavioral properties of metal and composite materials frequently preferred in aviation against stone impact are compared. For this purpose, Al2024-T3 and carbon fiber reinforced polymer (CFRP) are selected. These materials are frequently preferred in aviation. To observe the difference between the materials, low-velocity impact analysis is performed on two blade sections with span dimensions of 140 mm and chord dimensions of 310 mm under the same geometry and conditions. The analysis of the simulated action is obtained using the LS-DYNA program. Because it is a mechanical action, the Arbitrary Lagrangian (ALE) method was used accordingly. Within the scope of this method, the stone to be hit by the blade was modeled as a 5 mm solid structure and hit the blade surface with a speed of 3500 mm/s. While the blade with Al2024-T3 material was modeled as a shell, the CFRP blade was modeled as a composite part consisting of six layers at [0-90-0-90-0-90] degrees. Material properties were defined on the blade using 018 Law Plasticity and 54/55 Enhanced Composite Damage material cards for Al2024-T3 and CFRP, respectively. As a result of this analysis, the time-dependent changes in displacement, kinetic energy, and force parameters were acquired. Then, the low-velocity impact responses of the CFRP and the Al2024-T3 blades were compared.