P089-06
DISC- Modeling and Simulation of HVI effects with AUTODYN platform

Thursday, 17 December 2020: 05:45
Virtual
Alice Piccirillo1, Vincenzo Della Corte2, Alessandra Rotundi3, Ivano Bertini4, Giampaolo Ferraioli1, Laura Inno4, Andrea Longobardo2, Vladimir Zakharov5, Giuseppe Sindoni Dr.6, Eleonora Ammanito7 and Marilena Amoroso6, (1)Università degli Studi di Napoli "Parthenope", Naples, Italy, (2)IAPS-INAF, Rome, Italy, (3)Parthenope University of Naples, Scienze e Tecnologie, Naples, Italy, (4)Università degli Studi di Napoli "Parthenope", Napoli, Italy, (5)INAF, Rome, Italy, (6)Italian Space Agency, Rome, Italy, (7)IAPS-INAF, Roma, Italy
Abstract:
The COMET INTERCEPTOR mission will perform an encounter with an extrasolar comet (still unknown) and with its three spacecraft will study different aspects of the comet (tail, nucleus, and atmosphere). DISC (Dust Impact Sensor and Counter) is an instrument, on board of the spacecraft B1 of COMET INTERCEPTOR, devoted to the analysis of comet dust particles properties. This work presents a preliminary analysis of the instrument operative phase, exploiting numerical simulations with ANSYS/AUTODYN platform, to acquire useful information for the physical calibration. The particle impacts against the tool are identified as HVI (Hypervelocity Impact). So, a dedicated modeling approach, based on the three-dimensional smooth-particle hydrodynamics (SPH) and FEA, was developed to gain an insight into characteristics of HVI-induced AE (Acoustic Emission) propagation inside the instrument.

ACKNOWLEDGEMENTS:

This research was also supported by the Italian Space Agency (ASI) within the "Partecipazione italiana alla fase 0 della missione ESA Comet Interceptor " (ASI INAF agreement n.Accordo Attuativo" numero 2020-4-HH.0 ).

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