RESEARCH ON OPTIMAL CALCULATION OF QUADCOPTER FRAME STRUCTURE

Abstract

The structural frame of an unmanned aerial vehicle is a critical determinant of flight performance and payload capacity. With the expanding applications of unmanned aerial vehicles in various fields such as agriculture, disaster relief, transportation, and military operations, there is an increasing demand for lightweight, durable, and aerodynamically optimized frame designs. This paper presents a structural analysis and optimization approach for a quadcopter frame, a type of unmanned aerial vehicles designed to carry a 2 kg payload. Based on the static structural analysis results, an optimal computational method for the quadcopter frame is proposed. The optimized model exhibits a 2.76% reduction in weight compared to the original design, a 66% reduction in storage volume when folded, and an evenly distributed load capacity without localized stress concentrations. The results underscore the importance of structural analysis and optimization in unmanned aerial vehicle design, particularly in achieving a balance between weight reduction and load capacity. Based on these research results, a small-scale unmanned aerial vehicle prototype will be developed in the near future for training and technology transfer at the University of Engineering and Technology, Vietnam National University, Hanoi.