Articles producció científica> Química Física i Inorgànica

Some considerations on the vibrational environment of the DSC-DCMIX1 experiment onboard ISS

  • Identification data

    Identifier: PC:1938
  • Authors:

    J. Gavaldà
    R. Jurado
    M.J. Simón
    J. Pallarés
    A. Laverón-Simavilla
    X. Ruiz
    V. Shevtsova
  • Others:

    Author, as appears in the article.: J. Gavaldà; R. Jurado; M.J. Simón; J. Pallarés; A. Laverón-Simavilla; X. Ruiz; V. Shevtsova
    Department: Enginyeria Mecànica Química Física i Inorgànica
    URV's Author/s: GAVALDÀ MARTÍNEZ, JOSEFA; R. Jurado; SIMÓN OLMOS, MARÍA JOSÉ; J. Pallarés; A. Laverón-Simavilla; X. Ruiz; V. Shevtsova
    Keywords: International Space Station (ISS) Signal denoising thermodiffusion
    Abstract: The present work attempts to characterize the accelerometric environment of the DSC-DCMIX1 thermodiffusion experiment carried out in the International Space Station, from November 7th 2011 until January 16th 2012. Quasi-steady and vibrational/transient data coming from MAMS and SAMS2 sensors have been downloaded from the database of the PIMS NASA website. To be as exhaustive as possible, simultaneous digital signals coming from different SAMS2 sensors located in the Destiny and Columbus modules have also been considered. In order to detect orbital adjustments, dockings, undockings, as well as, quiescent periods, when the experiment runs were active, we have used the quasi-steady eight hours averaged (XA, YA and ZA) acceleration functions as well as the eight hours RMS ones. To determine the spectral contents of the different signals the Thomson multitaper and Welch methods have been used. On the other hand, to suppress the high levels of noise always existing in the raw SAMS2 signals, denoising techniques have been preferred for comparative reboostings considerations. Finally, the RMS values for specific 1/3 octave frequency bands showed that the International Space Station vibratory limit requirements have not been totally accomplished during both quiescent periods and strong disturbances, specially in the low frequency range.
    Research group: Processat Digital de Senyals en Entorns Aeroespacials i Biomèdics
    Thematic Areas: Chemistry Química Química
    licence for use:
    ISSN: 0094-5765
    Author identifier: 0000-0001-7881-4192; 0000-0003-1737-0019; n/a; 0000-0003-0305-2714; 0000-0001-9809-8103; n/a; n/a
    Record's date: 2016-11-02
    Last page: 356
    Journal volume: 129
    Papper version: info:eu-repo/semantics/submittedVersion
    Link to the original source:
    Article's DOI: 10.1016/j.actaastro.2016.09.033
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2016
    First page: 345
    Publication Type: Article Artículo Article
  • Keywords:

    Dinàmica de fluids
    Estacions espacials
    International Space Station (ISS)
    Signal denoising
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