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  Citation Number 1
 Views 48
 Downloands 14
İnsansız Hava Araçlarının Uçuş Süresinin Termal Hava Akımları Kullanılarak Arttırımı
2021
Journal:  
Avrupa Bilim ve Teknoloji Dergisi
Author:  
Abstract:

İnsansız hava araçları (İHA), uzaktan komuta ya da otonom biçimde uçuş yapabilen içerisinde bir operatör bulunmayan hava araçlarıdır. İHA’lar askeri ve sivil amaçlar için geniş bir kullanım alanına sahiptir. Kullanım alanlarının geniş olması ile son kullanıcılar için pek çok farklı konfigürasyonlar ile tasarımı ve üretimi gerçekleştirilmektedir. Farklı konfigürasyonlar ile tasarlanan İHA sistemleri beraberinde birçok problemlerle birlikte gelmektedir. Geniş kullanım alanları ile İHA'larda karşılaşılan en temel eksiklik ise uçuş süresi ve menzilinin yetersiz olmasıdır. Bu problemin çözümü üzerine itki sisteminin iyileştirilmesi, aerodinamik iyileştirmeler, batarya teknolojisinde yapılan yenilikler gibi pek çok çalışma yapılmıştır. Bu çalışmada İHA’ların uçuş süreleri ve menzillerinin iyileştirilmesi konu alınarak, termal hava akımlarından yararlanılmıştır. Termal hava akımları, güneş ışınlarının yeryüzünde bıraktığı etki ile oluşan yukarı yönlü yükselen hava akımları olarak tanımlanmaktadır. Yukarı yönlü hava akımlarının etkisi ile sportif hava araçları ve kuşlar herhangi bir itiş gücü ve enerji ihtiyacı olmadan havada saatlerce kalabilmekte ve uzun mesafeli olarak uçuş yapabilmektedir. Çalışma kapsamında termal hava akımları incelenmiş ve termal hava akımlarının otonom olarak tespit edilebilmesi için bir İHA sistemi tasarlanmış ve uçuşu gerçekleştirilmiştir. Uçuş denemeleri esnasında manuel ve stabilize uçuş modlarına göre termal hava akmlarının kullanımı ile yapılan uçuşta %61 daha uzun uçuş süresi tespit edilmiştir.

Keywords:

Increase the flight time of unmanned aircraft by using thermal air flows
2021
Author:  
Abstract:

Unmanned aircraft are aircraft without an operator which can fly on a remote command or autonomous basis. The IHAs have a wide range of use for military and civil purposes. With its wide range of uses, the design and production are performed with many different configurations for the final users. The IHA systems designed with different configurations come with many problems. The main disadvantage in the widespread use areas and IHAs is that the flight time and range are insufficient. Many studies have been done on the solution of this problem, such as improving the push system, aerodynamic improvements, innovations in battery technology. In this study, the improvement of the flight times and limits of the IHAs, thermal air flows were taken advantage of. Thermal air flows are defined as upward upward air flows formed by the effect of the sun's rays leaving on Earth. With the influence of upward air flows, sports aircraft and birds can stay in the air for hours without any driving power and energy needed and can fly long distances. In the framework of the study, a IHA system has been designed and the flight has been carried out for thermal air flows to be studied and thermal air flows can be autonomously detected. During the flight trials, a 61% longer flight time was detected in the flight using thermal air strings according to the manual and stabilized flight modes.

Keywords:

Increasing The Flight Time Of Unmanned Aerial Vehicles By Using Thermal Air Currents
2021
Author:  
Abstract:

Unmanned aerial vehicles (UAV) are air vehicles that can be controlled remotely or fly autonomously, without an operator. UAVs have a wide range of uses for military and civilian purposes. With its wide range of usage areas, it is designed and produced with many different configurations for end users. UAV systems designed with different configurations come with many problems. The most basic deficiency encountered in UAVs with their wide range of use is the insufficient flight time and range. Many studies have been conducted on the solution of this problem, such as the improvement of the propulsion system, aerodynamic improvements, and innovations in battery technology. In this study, thermal air current were used by taking the subject of improving the flight times and ranges of UAVs. Thermal air currents are defined as upward rising air currents caused by the effect of sunlight on the earth. With the effect of upward air currents, sports aircraft and birds can stay in the air for hours and fly long distances without any propulsion and energy need. Within the scope of the study, thermal air currents were examined and an UAV system was designed and flight was carried out in order to detect thermal air currents autonomously. During flight trials, 61% longer flight time was detected with the use of thermal air currents compared to manual and stabilized flight modes.

Keywords:

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Avrupa Bilim ve Teknoloji Dergisi

Field :   Fen Bilimleri ve Matematik; Mühendislik

Journal Type :   Uluslararası

Metrics
Article : 3.175
Cite : 5.553
2023 Impact : 0.178
Avrupa Bilim ve Teknoloji Dergisi