ОСОБЛИВОСТІ ПОБУДОВИ ТРИВИМІРНИХ МОДЕЛЕЙ РЕАЛЬНИХ ГВИНТІВ КВАДРОКОПТЕРІВ

The development of technology has caused a wide circulation of unmanned aerial vehicles (UAVs) due to their mobility, endurance and a wide specter of potential use. One of the key UAV components, which influence their technical and operational characteristics, are propellers. The subject of the research is the estimation of optimal propeller parameters, which will contribute to improving UAV effectiveness, increasing their flight distance, maneuverability and decreasing power consumption. The object of the research is the propellers of UAVs. The aim of this work is the process of creating three-dimensional models based on HQProp V1S 7x3,5x3 propeller, which is considered to be one of the most effective among its peers. In order to conduct the analysis, various sizing methods were used, particularly the master model and shell methods. Several versions of three-dimensional propeller models were created, which were then compared for geometric parameters and aerodynamic performance. Special attention was paid to the measurements accuracy and recreation of a complex blades geometry, considering than even slight deviations can have an impact on the propeller aerodynamic properties. The results of the research indicate significant differences between the models acquired from specialized Internet resources and the ones based on real measurements. This proves the necessity of a thorough propeller geometry analysis before they are used in calculations and planning. Moreover, the analysis of received models makes it possible to evaluate the influence of geometric characteristics on propeller work effectiveness, specifically lift generation, noise level and resistance to mechanical stress. Scientific innovation and practical significance of conducted research. New three-dimensional models of real-life quadcopter propellers based on HQProp V1S 7x3,5x3 propeller were obtained. 3D models may be used for improving UAV propellers design, which will benefit their aerodynamic efficiency and operational characteristics. Thus, further research may be aimed at optimizing blades profile, choosing the materials with improved mechanical properties and developing new propeller designs for achieving maximal aerodynamic characteristics. This in turn can make UAVs more effective and more adapted to specific operating environments.