Dynamic structural analysis in a 2U CubeSat considering quasi-static loads

Q4 Engineering

Ingeniare Pub Date : 2022-03-01 DOI:10.4067/s0718-33052022000100094

Vitor Hugo Lopes Costa Lima, Rômulo do Nascimento Rodrigues, Pierre Maurice Christophe Lamary, Roberto de Araújo Bezerra

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引用次数: 1

Abstract

Nowadays, the use of the CubeSat standard for satellites design has become a strong appliance in space industries and universities because of its low cost. In its simpler model a CubeSat , consists of a cubic nanosatellite with less than 1,33 kg and 10 cm of edge. The present work was done computational simulations using the finite element method since computational simulations are cheaper to do vibration tests. It was carried out modal analyses comparing five CubeSat structures, where it was evaluated the presence of electronic board (without electronic elements), static loads, two different aluminum alloys, and the influence of additional mass in the PCB (Printed Circuit Board). CAD software was used for the structures’ design following the CubeSat specifications, and all the simulations were carried out in a finite element software, in a range of 0 to 1000 Hz. It was designed one structure to do initial simulations, followed by the design of 4 structures more adjusted to the CubeSat requirements. In the end, results showed the influences of each present condition on the satellite. It was noticed that influences of the load in the vibration shape and less than 2% in other results. The material available to build a CubeSat for tests was validated concerning the recommended aluminum alloy.

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考虑准静载荷的2U立方体卫星动力结构分析

如今，使用立方体卫星标准进行卫星设计，由于其成本低，已成为航天工业和大学的强大应用。在其简单的模型中，立方体卫星由一个小于1,33千克的立方纳米卫星和10厘米的边缘组成。由于计算模拟比振动试验更便宜，因此本文采用有限元方法进行计算模拟。对五种立方体卫星结构进行了模态分析，其中评估了电子电路板(不含电子元件)、静态载荷、两种不同的铝合金以及PCB(印刷电路板)中附加质量的影响。根据CubeSat规范使用CAD软件进行结构设计，所有模拟均在0至1000 Hz范围内的有限元软件中进行。设计了一个结构进行初始模拟，随后设计了4个结构，以适应立方体卫星的要求。最后，分析了各工况对卫星的影响。结果表明，载荷对振型的影响较小，对其他结果的影响小于2%。针对推荐的铝合金，对用于制造立方体卫星进行试验的可用材料进行了验证。

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

Ingeniare Engineering-Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： Ingeniare. Revista chilena de ingeniería is published periodically, is printed in three issues per volume annually, publishing original articles by professional and academic authors belonging to public or private organisations, from Chile and the rest of the world, with the purpose of disseminating their experiences in engineering science and technology in the areas of Electronics, Electricity, Computing and Information Sciences, Mechanical, Acoustic, Industrial and Engineering Teaching. The abbreviated title of the journal is Ingeniare. Rev. chil. ing. , which should be used in bibliographies, footnotes and bibliographical references and strips.