Assessment of 3D-printed span change structures applied to small unmanned aerial vehicles

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-01-01 DOI:10.1177/1756829321992139

T. Henry, J. Hrynuk, F. Phillips

引用次数: 5

Abstract

An assessment of 3D-printed span-change structures is presented for determining suitability of the technology to small unmanned aerial vehicles. Materials and manufacturing technologies were used with an emphasis on near term applicability with design trades between the aerodynamic performance and structural response. Aerodynamic performance was assessed on three wind tunnel models varying span (432, 600, and 762 mm), wind speed (Reynolds numbers 18,000, 36,000, and 71,000), additive manufacturing print build plane and camber, quantifying structural response as the resulting shape during aerodynamic loading. Each model displayed increasing compliance as span increased with wing-tip displacement on the order of 50, 100, and 200 mm with various degrees of sweep and twist. Models generated excess lift at Re = 71,000 indicating potential flight demonstration of the technology with a lift to drag improvement of up to 97% at maximum wing extension.

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3D打印跨度变化结构在小型无人机上的应用评估

对3D打印跨度变化结构进行了评估，以确定该技术对小型无人机的适用性。材料和制造技术的使用强调了近期的适用性，并在空气动力学性能和结构响应之间进行了设计权衡。在三个不同跨度的风洞模型（432、600和762 mm）、风速（雷诺数18000、36000和71000）、增材制造印刷构建平面和弯度，将结构响应量化为空气动力学载荷期间的最终形状。随着翼展的增加，每个模型都显示出越来越大的顺应性，翼尖位移约为50、100和200 mm，具有不同程度的扫掠和扭曲。模型在Re处产生多余升力 = 71000表明该技术的潜在飞行演示，在最大机翼伸展时，升力与阻力的改善率高达97%。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.