The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
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Exploring our Solar System and unlocking the secrets of the Universe
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Go to topicUsing space to benefit citizens and meet future challenges on Earth
Go to topicMaking space accessible and developing the technologies for the future
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A TDE funded activity, led by CSEM (Switzerland) together with Thales Alenia Space (France), improved the prediction and verification methods of modelling microvibrations. Microvibrations are a commonly occurring multi-disciplinary issue, impacting on several critical functions, including the design of structures & mechanisms, AOCS & GNC, optics and thermal control subsystems.
The activity focused on four main areas, including the:
• Development of mathematical models, developing detailed physical models of a cryo-cooler and a stepper motor which can predict the levels and frequencies of microvibrations generated during spacecraft operations.
• Improvement of prediction analysis methods, to propose alternative methods of predicting the combined effects of multiple noise sources.
• Investigations of micro-vibration testing techniques, where simplified testing methods may decrease the complexity of the end-to-end verification of microvibration requirements.
• Correlation of models and predictions with test data, to fine tune the models and validate the analysis methods.