International Journal of Aeronautics and Astronautics Kapağı
Yayıncı
Selçuk Üniversitesi
e-ISSN
 2757-6574
Başlangıç Yılı
2020
Dil
İngilizce
Durumu
Aktif
Dizin
Havacılık Dizini
Yayın Aralığı
Yılda 3 Sayı

Son Sayı (Latest Issue) - Year 2022 Volume 3 Issue 3

Abstract (Özet)

States had to pursuit several securitization strategies as a result of terrorism and other illegal acts in the aviation sector. These strategies, which were shaped under the aviation security studies, led to the development of a number of mechanisms to ensure the safety of life and property of passengers, particularly the national security of states. The artificial intelligence-supported systems that emerged within these mechanisms and called profiling have revealed a number of applications that will violate the privacy rights of the passengers or push them to the second plan. Profiling systems are examples of such security applications. These systems violate the privacy rights of the passengers and access their personal information without permission and make some scoring and classification by using them. As a result of these practices, human rights defenders took action and thus a discussion that could be defined as the rights-security paradox started. In the study shaped specifically for this discussion, the issues of international agreements, national security, human rights, security procedures and profiling are analysed in the context of the rights-security paradox. Thus, it was tried to determine the level of violations of rights in the profiling processes and suggestion was presented.

Abstract (Özet)

In this study, the mechanical behavior under highest thermal conditions and flow characteristics of the hydraulic fluid of the servo-characterized proportional valve, which is one of the indispensable components of the aviation industry and used for hydraulic flow control, were investigated numerically. In the simulations, 50, 75 and 100 °C were selected as temperatures, and 0.2 mm, 0.6 mm and 1.2 mm spool stroke openings were used for hydrodynamic flow. Simulations were carried out for a pressure difference of 35 bar. As a result of the analysis, it was observed that there was no restriction in the movement of the spool-sleeve structure for a temperature of 75°C, excessive friction occurred in the spool-sleeve structure at 100°C and the movement was restricted. In addition, it can be said that hydraulic turbulences are effective in dispersing polluting particulate matter for all three spool strokes at a pressure difference of 35 bar.