Autor según el artículo: Dubert,D.; Ollé, Judit; Jurado, R.; Gavaldà, Jna.; Laverón-Simavilla, Ana; Ruiz, X.; Shevtsova, Valentina

Departamento: Química Física i Inorgànica

Autor/es de la URV: DUBERT , DIANA CRISTINA; Ollé, Judit; JURADO CRUZ, RAFAEL; GAVALDÀ MARTÍNEZ, JOSEFA; Laverón-Simavilla, Ana; RUIZ MARTÍ, JOSÉ JAVIER; Shevtsova, Valentina

Resumen: A comparative analysis of the vibratory environment of the DCMIX2/3 thermodiffusion experiments is presented here by using acceleration signals coming from different sensors placed in the Destiny, Columbus and Kibo modules. The es03 sensor, nearest to the experimental device and located inside the Glovebox (Destiny module) has been defined as reference. Data were downloaded from the NASA PIMS website paying special attention to the runs coinciding with disturbances such as dockings or extravehicular activities (EVAs) as they could particularly affect the International Space Station (ISS) microgravity levels. The analyses have been made minute by minute for the three acceleration components by using the Frequency Factor Index (FFI), Spectral Entropy (SEN) and Root Mean Square (RMS) values evaluated over one-third-octave frequency bands. Spearman's rank correlation coefficient and the coherence function have been used to investigate the degree of linear correlation between the reference signal and the other ones. SEN evolution showed different patterns compared to the reference. Also, RMS values surpassing the ISS microgravity limits were detected in all sensors, mainly at low frequency bands (<10 Hz) and prevailing on zA direction. However the sensors located in the Destiny module better accomplished the ISS vibratory limits requirements. Finally, some degree of linear correlation at structural frequencies (< 3Hz) has also been detected. Overall, the sensors placed in the Destiny, Columbus and Kibo modules presented different vibratory characteristics and, despite they offer valuable information of the whole environment, may not be sufficient properly characterize DCMIX2/3 experiments.

Grupo de investigación: Processat Digital de Senyals en Entorns Aeroespacials i Biomèdics

Áreas temáticas: Physics Física Física

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

ISSN: 0938-0108

Identificador del autor: 0000-0002-7308-5872; ; 0000-0003-1737-0019; 0000-0001-7881-4192; ; 0000-0003-4020-4457;

Fecha de alta del registro: 2018-10-09

Página final: 697

Volumen de revista: 30

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

Enlace a la fuente original: https://link.springer.com/article/10.1007/s12217-018-9640-7

Programa de financiación: plan; ESETDIF-CEVISS; ESP2017-83544-C3-3-P(MCIU/CEDER) plan; MVI-DCMIX/ISS; ESP2014-53603-P(MCIU/CEDER)

DOI del artículo: 10.1007/s12217-018-9640-7

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2018

Página inicial: 683

Tipo de publicación: Article Artículo Article