An investigation on the structural vibrations of multi-rotor passenger drones

IF 1.5 4区工程技术 Q2 ENGINEERING, AEROSPACE

International Journal of Micro Air Vehicles Pub Date : 2023-01-01 DOI:10.1177/17568293231199097

Kejing Chen, Wei Meng, Jinhan Wang, Kun Liu, Zhenbo Lu

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Abstract

In order to solve the structural damage problem of the first generation of large multi-rotor manned drones, the present work has designed to study the structural vibration problems of multi-rotor drones. On a small multi-rotor drone, the laser vibration meter verified the reliability of acceleration sensor measurement of vibration and found that circular shape carbon fiber arms have strong damping abilities, with the strongest vibration in the Z-axis direction. To improve the design of the second generation of large multi-rotor manned drones, elliptical shape carbon fiber arms were employed instead of circular arms. Experiments showed that the main vibrations of the large multi-rotor manned drone’s arm are low-frequency vibrations below 200Hz, producing mainly torsional and bending modes, and the elliptical carbon fiber arms significantly reduce vibrations in the Z-axis direction. This study provides experimental data support for multi-rotor manned drones and further presents an improvement strategy for suppressing the vibrations of the multi-rotor manned drones.

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多旋翼无人机结构振动研究

为了解决第一代大型多旋翼载人无人机的结构损伤问题，本工作旨在研究多旋翼无人机的结构性振动问题。在一架小型多旋翼无人机上，激光测振仪验证了加速度传感器测量振动的可靠性，发现圆形碳纤维臂具有较强的阻尼能力，Z轴方向振动最强。为了改进第二代大型多旋翼载人无人机的设计，采用了椭圆形碳纤维臂代替了圆形臂。实验表明，大型多旋翼载人无人机手臂的主要振动是200Hz以下的低频振动，主要产生扭转和弯曲模式，椭圆碳纤维手臂显著降低了Z轴方向的振动。该研究为多旋翼载人无人机的振动抑制提供了实验数据支持，并提出了一种改进策略。

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

International Journal of Micro Air Vehicles ENGINEERING, AEROSPACE-

CiteScore

3.00

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： The role of the International Journal of Micro Air Vehicles is to provide the scientific and engineering community with a peer-reviewed open access journal dedicated to publishing high-quality technical articles summarizing both fundamental and applied research in the area of micro air vehicles.