Browsing by Keyword "Tribolab"
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Item The thermal control of Tribolab: a materials experiment on board the International Space Station(Nova Science Publishers, Inc., 2018) Garmendia, Iñaki; Anglada, EvaTribolab is a materials tribology experiment that was flown on board the International Space Station (ISS) from February 2008 to September 2009. The main objective of the experiment was the study of the behaviour of new solid lubricants (specifically, molybdenum disulphide MoS2 alloyed with tungsten carbide WC) under real space conditions. The thermal control of the instrument (techniques needed to ensure that the temperature range of the experiment components are adequate in all the mission possible scenarios), mainly based on passive thermal control with some active components, is explained in detail in this chapter. Two computational models devised for the design, as well as the different mission scenarios, foreseen temperatures and thermal flows, are also detailed. The verification and on earth qualification tests are also described, as well as the real thermal behaviour of the experiment when on board the International Space Station. Post-flight examination of Tribolab was also possible, as the experiment returned to ground on the Space Shuttle.Item TriboLAB: Características de un Tribómetro para un Experimento de Tribología Espacial en la ISS(Tekniker, 2007-06) Garmendia, Iñaki; Anglada, Eva; Landaberea, Aitor; Vallejo, Haritz; Brizuela, Marta; Martinez, Cesar; Fernandez, RamónTriboLAB es un instrumento para la experimentación tribológica en órbita que, junto con otros dispositivos europeos, forma parte de la plataforma EuTEF, la cual se instalará en la Estación Espacial Internacional en Octubre de 2007. Se presentan las características de este tribómetro en lo referente a aspectos estructurales, montaje, inspección, verificación, operacionales, electrónicos, térmicos y de software.Item The vacuum tribology model (VTM) of tribolab(2003) Garmendia, I.; Landaberea, A.; Anglada, E.; Fernández-Sanz, R.; Santiago, R.; Herrada, F.; Encinas, J. M.; CIRMETALTriboLAB is a tribology instrument that is planned for installation in the EuteF Flight Segment Platform [1], along with several other European scientific instruments. Eutef will be fixed onto an Express Pallet Adapter (ExPA), which provides standard structural, mechanical, electrical and communications interfaces to the Columbus External Payload Facility of the International Space Station (ISS). As a part of the model philosophy, a vacuum tribological model (VTM) has been developed to generate "on ground" tribological data of selected lubricants. The idea is to compare the results obtained "on ground" with those that will be produced in the space, in order to investigate the different behaviors of same tribological films and to be able to compare the performance of specific lubricants in Low Earth Orbit (LEO) conditions. The VTM is composed of six double experiment cells that perform respectively ball bearing (BB) experiments (with liquid and solid lubrication) and pin-on-disk (PoD) tests of solid lubricants. Thin films of alloyed MoS 2 are being tested in the VTM under controlled vacuum conditions. In this work, the two sections of the VTM are described.