Bu çalışamada düşük ağırlığa sahip bir insansız hava aracı tasarımı ve akış analizleri gerçekleştirilmiştir. 15 m/s seyir hızı ve 1000 metre maksimum uçuş irtifası ile havada 15 dakika kalabilen hava aracı gerekli aerodinamik kuvvetlerinin sağlayabildiği de OpenVSP analizleri ile desteklenmiştir. Bu aerodinamik kuvvetler sayesinde hava aracı 13.5 km menzile sahip olup bu çaptaki tüm noktalarda kararlı bir uçuş sergileyerek görevini sağlayabilmektedir.
Due to the recent traffic density and the need for transportation, interest in urban air mobility is increasing. Many companies want to direct this sector by designing vehicles to be used in urban air mobility. Accordingly, air taxis and flying vehicle concept ideas are becoming widespread in cities. It is thought that these vehicle, which will be used in both personal and public areas, will work with electric motors to bring carbon emissions to the lowest levels. In this study, improvements have been made in the design of an aircraft that can be used widely in the city and in the maximum range it can reach. The designed vehicle can provide safe transportation in the city, both in the field of cargo and health. It has been determined that the vehicle has a range of approximately 45 km and an endurance of 30 minutes. These values are suitable for transportation in a medium-sized city.
In this paper, the effect of different weather conditions on radar distance measurements was investigated experimentally. In current radar applications, the speed of the EM wave in the environment is accepted as the speed of light for distance measurements by radar. However, this speed varies in different weather conditions and is essential for sensitive radar applications. A radar system followed the target at a fixed distance to examine the changes in the speed of the EM wave due to the changes in the dielectric constant and conductivity parameters in different weather conditions. While measuring the distance, temperature, apparent temperature, relative humidity, and pressure were also recorded. Thus, erroneous distance measurements caused by air change could be detected. MLR, SVM, ANN, KNN and ANFIS models were used to estimate erroneous distance measurements caused by weather change. The results showed that the error in distance measurements could be estimated with great accuracy.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.