ANALYSIS OF INFLUENCES OF EXTERNAL COMPONENTS DURING VIBRATION TESTING OF CUBESATS

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Abstract

During a satellite launch physical forces in form of acoustic waves and vibrations are impacting the
spacecraft. The environmental test campaign replicates these launch conditions on a vibration table.
Accurate measurement results give an important determination of the spacecraft components survival or
if structural enhancements have to be applied. Especially in CubeSat missions cheap and easily available
materials like aluminium or wood are the first choice for construction of mechanical ground support
equipment (MGSE).
In this paper the effects of MGSE and other components to the vibration test results are analysed.
Shaker adapters for PCBs have their own resonances and are thus affecting the test results. On this
account, influences on the test outcomes by using shaker plates of various materials are shown. Besides,
vibration sensors are directly applied to the devices under test (DUTs). This additional mass influences
the outcomes of the test. Vibration tests with different sensor masses are therefore compared against
each other to evaluate this impact. Additionally, different DUT weights are used to identify the influence
of the weight relation between DUT and sensor. Evaluation of vibration test campaigns shows that the
MGSE and sensor placement can have significant results on the test results, especially with respect to
the resonance frequency. Additionally, it was observed that the MGSE in use showed noticeable decrease
in its structural integrity which leads to the conclusion that construction of MGSE components requires
significant margins in terms of mechanical stability.
Original languageEnglish
Title of host publicationConnecting all space people: Proceedings of the 70th International Astronautical Congress
Publication statusIn preparation - 2020

Fingerprint

Sensors
Testing
Mechanical stability
Structural integrity
Polychlorinated biphenyls
Vibrations (mechanical)
Spacecraft
Wood
Acoustic waves
Satellites
Aluminum

Cite this

Hörmer, A. J., Henkel, M., Kubicka, M., Wenger, M., & Koudelka, O. F. S. (2020). ANALYSIS OF INFLUENCES OF EXTERNAL COMPONENTS DURING VIBRATION TESTING OF CUBESATS. Manuscript in preparation. In Connecting all space people: Proceedings of the 70th International Astronautical Congress

ANALYSIS OF INFLUENCES OF EXTERNAL COMPONENTS DURING VIBRATION TESTING OF CUBESATS. / Hörmer, Andreas Johann; Henkel, Maximilian; Kubicka, Manuel; Wenger, Manuela; Koudelka, Otto Friedrich Stefa.

Connecting all space people: Proceedings of the 70th International Astronautical Congress. 2020.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Hörmer, AJ, Henkel, M, Kubicka, M, Wenger, M & Koudelka, OFS 2020, ANALYSIS OF INFLUENCES OF EXTERNAL COMPONENTS DURING VIBRATION TESTING OF CUBESATS. in Connecting all space people: Proceedings of the 70th International Astronautical Congress.
Hörmer AJ, Henkel M, Kubicka M, Wenger M, Koudelka OFS. ANALYSIS OF INFLUENCES OF EXTERNAL COMPONENTS DURING VIBRATION TESTING OF CUBESATS. In Connecting all space people: Proceedings of the 70th International Astronautical Congress. 2020
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abstract = "During a satellite launch physical forces in form of acoustic waves and vibrations are impacting thespacecraft. The environmental test campaign replicates these launch conditions on a vibration table.Accurate measurement results give an important determination of the spacecraft components survival orif structural enhancements have to be applied. Especially in CubeSat missions cheap and easily availablematerials like aluminium or wood are the first choice for construction of mechanical ground supportequipment (MGSE).In this paper the effects of MGSE and other components to the vibration test results are analysed.Shaker adapters for PCBs have their own resonances and are thus affecting the test results. On thisaccount, influences on the test outcomes by using shaker plates of various materials are shown. Besides,vibration sensors are directly applied to the devices under test (DUTs). This additional mass influencesthe outcomes of the test. Vibration tests with different sensor masses are therefore compared againsteach other to evaluate this impact. Additionally, different DUT weights are used to identify the influenceof the weight relation between DUT and sensor. Evaluation of vibration test campaigns shows that theMGSE and sensor placement can have significant results on the test results, especially with respect tothe resonance frequency. Additionally, it was observed that the MGSE in use showed noticeable decreasein its structural integrity which leads to the conclusion that construction of MGSE components requiressignificant margins in terms of mechanical stability.",
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