MODAL ANALYSIS OF A SATELLITE WITH DIFFERENT MATERIALS

Authors

  • Lucas Rafael Carneiro de Aguiar UnB
  • Sergio Henrique da Silva Carneiro UnB
  • Salvatore Paiano G.A.U.S.S. srl

DOI:

https://doi.org/10.26512/ripe.v2i19.15030

Abstract

For placing an object in any Earth orbit, it is extremely necessary to follow safety rules. The non-use of this can be destroyable for the launching system. Because of that, the launching company Kosmotras® requires that the satellite UniSat7 from GAUSS srl® pursue a high level of structural security. The Kosmotras® requests a modal analysis and that the natural frequencies of the satellite must be higher than 20 Hertz in longitudinal direction and 10 Hertz in lateral. For achieving this results, it is needed to use materials that increase the
total stiffness and decrease the mass of the satellite. It was used 3 types of materials to be applied in this study: Aluminium alloy plate, honeycomb composite material made of aluminium and aluminium honeycomb core with carbon fiber plate sandwich composite. Through computational analysis made in ANSYS®, it was proved that the last one material is the most suitable for aerospace uses. This is explained by the fact that the composite materials (mainly the honeycomb sandwich panels) have the lowest density and highest stiffness. 
Keywords: Natural frequencies, Modal analysis, Composite materials, Structural dynamics

References

Inman, D. J., 2014. Engineering Vibration, New Jersey, Ed. Pearson, 4th ed. 720p.

Kosmotras. Dnepr Space Launch System User’s Guide, completely revised. Moscow. 2011

OECD, Directorate for Science, technology and industry. The space economy at a glance 2011. 2011.

Metals Handbook.1990. Vol.2 - Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM International. 10th Ed.

Torayca, 2016. T700S data sheet. Toray Carbon Fiber America, Inc. Santa Ana, CA.

Ansys inc. Ansys® Workbench 2.0 Framework. 2013.

Catia Part Design. 2001. IBM Product Lifestyle Management solutions/ Dassault Systemes. Dassaul Systemes.

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Published

2017-02-08

Issue

Vol. 2 No. 19 (2016): MODELING SIMULATION AND CONTROL OF AEROSPACE AND NAVAL STRUCTURES DYNAMICS (I)

Section

Artigos

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How to Cite

MODAL ANALYSIS OF A SATELLITE WITH DIFFERENT MATERIALS. (2017). Revista Interdisciplinar De Pesquisa Em Engenharia, 2(19), 186-198. https://doi.org/10.26512/ripe.v2i19.15030