Material Extrusion Additive Manufacturing of the Composite UAV Used for Search-and-Rescue Missions

IF 4.4 2区 地球科学 Q1 REMOTE SENSING
Drones Pub Date : 2023-09-25 DOI:10.3390/drones7100602
Sebastian-Marian Zaharia, Ionut Stelian Pascariu, Lucia-Antoneta Chicos, George Razvan Buican, Mihai Alin Pop, Camil Lancea, Valentin Marian Stamate
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Abstract

The additive processes used in the manufacture of components for unmanned aerial vehicles (UAVs), from composite filaments, have an important advantage compared to classical technologies. This study focused on three-dimensional design, preliminary aerodynamic analysis, fabrication and assembly of thermoplastic extruded composite components, flight testing and search-rescue performance of an UAV. The UAV model was designed to have the highest possible structural strength (the fuselage has a structure with stiffening frames and the wing is a tri-spar), but also taking into account the limitations of the thermoplastic extrusion process. From the preliminary aerodynamic analysis of the UAV model, it was found that the maximum lift coefficient of 1.2 and the maximum drag coefficient of 0.06 were obtained at the angle of attack of 12°. After conducting flight tests, it can be stated that the UAV model, with components manufactured by the thermoplastic extrusion process, presented high stability and maneuverability, a wide range of speeds and good aerodynamic characteristics. The lack of this type of aircraft, equipped with electric motors, a traffic management system, and a thermal module designed for search-and-rescue missions, within the additive manufacturing UAV market, validates the uniqueness of the innovation of the UAV model presented in the current paper.
用于搜救任务的复合材料无人机的材料挤压增材制造
与传统技术相比,使用复合材料长丝制造无人机部件的增材工艺具有重要的优势。研究了某型无人机的三维设计、初步气动分析、热塑性挤压复合材料部件的制造与装配、飞行试验和搜救性能。UAV模型被设计为具有最高可能的结构强度(机身具有具有加强框架的结构并且机翼是三梁),但也考虑到热塑性挤压工艺的限制。通过对模型的初步气动分析,发现在攻角为12°时,最大升力系数为1.2,最大阻力系数为0.06。经过飞行试验,该无人机模型采用热塑性挤压工艺制造部件,具有较高的稳定性和机动性,航速范围广,气动特性好。在增材制造无人机市场中,缺乏这种类型的飞机,配备电动机,交通管理系统和为搜索和救援任务设计的热模块,验证了当前论文中提出的无人机模型创新的独特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Drones
Drones Engineering-Aerospace Engineering
CiteScore
5.60
自引率
18.80%
发文量
331
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