Matches in SemOpenAlex for { <https://semopenalex.org/work/W4301402004> ?p ?o ?g. }
Showing items 1 to 48 of
48
with 100 items per page.
- W4301402004 abstract "Present and future space missions rely on systems of increasingly demanding performance for being successful. Drag-free technology is one of the technologies that is fundamental for LISA-Pathfinder, an ESA mission whose launch is planned for the end of September 2015. A purely drag-free object is defined by the absence of all external forces other than gravity. This is not a natural condition and thus requires a proper design of a spacecraft, whose core is an object in free-fall, called test mass (TM). The purity of the drag-free orbit depends on the spacecraft capability of protecting the TM from disturbances, which indeed has limitations. According to a NASA study, such a concept provides substantial economies for LEO satellites. At the same time, a drag-free motion is required in many missions of fundamental physics. eLISA is an ESA concept mission aimed at opening a new window to the universe, black holes, and massive binary systems by means of gravitational waves. LISA-Pathfinder is in charge of proving the eLISA concept. In this frame, the system holding the TM during launch and releasing it in free-fall before the science phase represents a single point of failure for the whole mission. This thesis describes the phenomena, operations, issues, tests, activities, and simulations linked to the release following a system engineering approach. Experimental studies have been carried out to investigate this phenomenon in conditions representative of the LISA-Pathfinder flight environment. The last part of the thesis is dedicated to the preliminary design of the housing of the TM in the frame of a low-cost mission conceived at Stanford (USA). The ambition of this work is increasing the maturity of the technology needed in drag-free projects and therefore provide a starting point for future fascinating and challenging missions of this kind." @default.
- W4301402004 created "2022-10-05" @default.
- W4301402004 creator A5084695726 @default.
- W4301402004 date "2016-01-31" @default.
- W4301402004 modified "2023-09-26" @default.
- W4301402004 title "Drag-free Spacecraft Technologies: criticalities in the initialization of geodesic motion" @default.
- W4301402004 doi "https://doi.org/10.48550/arxiv.1602.00268" @default.
- W4301402004 hasPublicationYear "2016" @default.
- W4301402004 type Work @default.
- W4301402004 citedByCount "0" @default.
- W4301402004 crossrefType "posted-content" @default.
- W4301402004 hasAuthorship W4301402004A5084695726 @default.
- W4301402004 hasBestOaLocation W43014020041 @default.
- W4301402004 hasConcept C121332964 @default.
- W4301402004 hasConcept C127413603 @default.
- W4301402004 hasConcept C146978453 @default.
- W4301402004 hasConcept C161191863 @default.
- W4301402004 hasConcept C196644772 @default.
- W4301402004 hasConcept C2778940482 @default.
- W4301402004 hasConcept C29829512 @default.
- W4301402004 hasConcept C41008148 @default.
- W4301402004 hasConcept C72921944 @default.
- W4301402004 hasConceptScore W4301402004C121332964 @default.
- W4301402004 hasConceptScore W4301402004C127413603 @default.
- W4301402004 hasConceptScore W4301402004C146978453 @default.
- W4301402004 hasConceptScore W4301402004C161191863 @default.
- W4301402004 hasConceptScore W4301402004C196644772 @default.
- W4301402004 hasConceptScore W4301402004C2778940482 @default.
- W4301402004 hasConceptScore W4301402004C29829512 @default.
- W4301402004 hasConceptScore W4301402004C41008148 @default.
- W4301402004 hasConceptScore W4301402004C72921944 @default.
- W4301402004 hasLocation W43014020041 @default.
- W4301402004 hasLocation W43014020042 @default.
- W4301402004 hasOpenAccess W4301402004 @default.
- W4301402004 hasPrimaryLocation W43014020041 @default.
- W4301402004 hasRelatedWork W1933028200 @default.
- W4301402004 hasRelatedWork W1977990207 @default.
- W4301402004 hasRelatedWork W2012901064 @default.
- W4301402004 hasRelatedWork W2045782907 @default.
- W4301402004 hasRelatedWork W2077353279 @default.
- W4301402004 hasRelatedWork W2077903768 @default.
- W4301402004 hasRelatedWork W2087074364 @default.
- W4301402004 hasRelatedWork W2320446210 @default.
- W4301402004 hasRelatedWork W2351570427 @default.
- W4301402004 hasRelatedWork W4320058979 @default.
- W4301402004 isParatext "false" @default.
- W4301402004 isRetracted "false" @default.
- W4301402004 workType "article" @default.