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VIBES: Visionary Ingenuity Boosting European Spacecraft. Managing microvibrations for the future of spaceflight

Antonio Garcia Tim Gust Enes Basata Tim Gersting Michal Deka Sven Thiele Mohammad Salah Matias Bestard Koerner Torben Runte Miguel Gonzalez

Archive of Mechanical Engineering | 2023 | vol. 70 | No 2 | 183-197 | DOI: 10.24425/ame.2023.144819

Słowa kluczowe microvibrations isolation satelite archtectures metrology control

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Abstrakt

Microvibrations are mechanical oscillations caused by components such as the reaction wheels of an attitude control system of a spacecraft. These microvibrations are transferred through the spacecraft structure onto important instruments (e.g., optical instruments), causing those to produce diminished results (e.g., reduced image quality, imprecise geolocation etc.). At the present state, microvibrations in spacecraft cannot be actively controlled because their very high frequencies of up to 1000 Hz are above the control bandwidth a current attitude control system can provide. However, being able to reduce the effects of microvibrations on a space mission is becoming increasingly more critical as the envelope of future optical satellite missions expands. Furthermore, the advancements made in the performance of small satellites as well as the growing interest in laser and quantum communication call for a cost-efficient solution for managing microvibrations. This paper describes how cheap MEMS-based measurement systems have already proven that they are a potential solution. Showing high sensitivity and low-noise performance while allowing fast and easy prototyping.

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Bibliografia

[1] ECSS. Micro-vibrations, Space Engineering: Spacecraft Mechanical Loads Analysis Handbook, ECSS-E-HB-32-26A, 2013.
[2] A. Bronowicki. Forensic investigation of reaction wheel nutation on isolator. In 49th AIAA Structures, Structural Dynamics, and Materials Conference, Schaumburg, IL, USA, 7-10 April 2008. doi: 10.2514/6.2008-1953
[3] T. Runte, Z. Perez, and M. Baro. Microvibration engineering – a key to high-performance space missions. In 70th International Astronautical Congress, Washington, D.C., USA, 21-25 Oct. 2019.
[4] C.J. Dennehy. A survey of reaction wheel disturbance modeling approaches for spacecraft line-of-sight jitter performance analysis. In Proceeding of 18 European Space Mechanisms and Tribology Symposium, Munich, Germany, 18-20 Sept. 2019.
[5] H. Heimel. Spacewheel microvibration-sources, appearance, countermeasures. In Proceedings of the 8th International ESA Conference on Guidance & Navigation Control Systems, Karlove Vary, Czech Republic, 5-10 June 2011.
[6] C. Dennehy and O.S. Alvarez-Salazar. Spacecraft micro-vibration: A survey of problems, experiences, potential solutions, and some lessons learned. Technical report, 2018.
[7] M. Manso and M. Bezzeghoud. On-site sensor noise evaluation and detectability in low cost accelerometers. In Proceedings of the 10th International Conference on Sensor Networks – SENSORNETS, pages 100–106. [Online], 9-10 Febr. 2021. doi: 10.5220/0010319001000106.
[8] G. Heinzel, A. Rudiger, and R. Schilling. Spectrum and spectral density estimation by the Discrete Fourier Transform (DFT), including a comprehensive list of window functions and some new flat-top windows. Technical report, 2002.
[9] A. Wiebe. Entwicklung eines Teststandes zur Messung von Mikrovibrationen inklusive Auslegung eines Datenaufnahmesystems. Technical report, 2021.

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Autorzy i Afiliacje

Antonio Garcia

Tim Gust

Enes Basata

Tim Gersting

Michal Deka

Sven Thiele

Mohammad Salah

Matias Bestard Koerner

Torben Runte

Miguel Gonzalez

City University of Applied Sciences Bremen, Institute of Aerospace Technologies, Bremen, Germany
German Aerospace Center – DLR, Institute of Space Systems. Guidance, Navigation and Control Systems. Bremen, Germany
OHB System AG, Bremen, Germany