Autor según el artículo: Rafael Jurado; Jna. Gavaldà; M.J. Simón; J. Pallarés; Ana Laverón-Simavilla; X. Ruiz; Valentina Shevtsova

Departamento: Enginyeria Mecànica Química Física i Inorgànica

Autor/es de la URV: JURADO CRUZ, RAFAEL; GAVALDÀ MARTÍNEZ, JOSEFA; SIMÓN OLMOS, MARÍA JOSÉ; PALLARÉS CURTO, JORGE MARÍA; Ana Laverón-Simavilla; RUIZ MARTÍ, JOSÉ JAVIER; Valentina Shevtsova

Resumen: 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.

Grupo de investigación: Processat Digital de Senyals en Entorns Aeroespacials i Biomèdics Experimentació, Computació i Modelització en Mecànica de Fluids i Turbulència

Áreas temáticas: Física Física Physics

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 0094-5765

Identificador del autor: 0000-0003-1737-0019; 0000-0001-7881-4192; ; 0000-0003-0305-2714; ; 0000-0003-4020-4457;

Fecha de alta del registro: 2018-03-07

Página final: 356

Volumen de revista: 129

Versión del articulo depositado: info:eu-repo/semantics/submittedVersion

Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S009457651630604X?via%3Dihub

Programa de financiación: plan; MVI-DCMIX/ISS; ESP2014-53603-P

DOI del artículo: 10.1016/j.actaastro.2016.09.033

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2016

Página inicial: 345

Tipo de publicación: Article Artículo Article