Evaluation of Temperature and Material Combinations on Several Lubricants for Use in the Geostationary Operational Environmental Satellite (GOES) Mission Filter Wheel Bearings PDF Download
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Category :
Languages : en
Pages : 12
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Author:
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ISBN:
Category :
Languages : en
Pages : 12
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721270033
Category :
Languages : en
Pages : 24
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A bearing test apparatus was used to investigate lubricant degradation rates and elastohydrodynamic transition temperatures for several perfluoropolyether (Krytox) formulations, a pentasilahydrocarbon, and a synthetic hydrocarbon (Pennzane 2001 A) in an MPB 1219 bearing, which is used in the geostationary operational environmental satellite (GOES) mission filter wheel assembly. Test conditions were the following: 1000-hr duration, 75 C, 20 lb axial load, vacuum level less than 1 x 10(exp -6) Torr, and a 600-rpm rotational speed. Baseline tests were performed using unformulated Krytox 143AB, the heritage lubricant. Krytox additive formulations showed small reductions in degradation rate. Krytox GPL-105, a higher viscosity version, yielded the least amount of degradation products. Both the silahydrocarbon and Pennzane 2001A showed no signs of lubricant degradation and had ample amounts of free oil at test conclusion. Jansen, Mark J. and Jones, William R., Jr. and Predmore, Roamer E. Glenn Research Center; Goddard Space Flight Center NASA/TM-2001-211121, E-12970, NAS 1.15:211121
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Category :
Languages : en
Pages : 14
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Author: DP Mishra
Publisher: CRC Press
ISBN: 1351708414
Category : Technology & Engineering
Languages : en
Pages : 364
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The book follows a unified approach to present the basic principles of rocket propulsion in concise and lucid form. This textbook comprises of ten chapters ranging from brief introduction and elements of rocket propulsion, aerothermodynamics to solid, liquid and hybrid propellant rocket engines with chapter on electrical propulsion. Worked out examples are also provided at the end of chapter for understanding uncertainty analysis. This book is designed and developed as an introductory text on the fundamental aspects of rocket propulsion for both undergraduate and graduate students. It is also aimed towards practicing engineers in the field of space engineering. This comprehensive guide also provides adequate problems for audience to understand intricate aspects of rocket propulsion enabling them to design and develop rocket engines for peaceful purposes.
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Category : Cold adaptation
Languages : en
Pages : 256
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Author: Peter L. Conley
Publisher: John Wiley & Sons
ISBN: 9780471121411
Category : Technology & Engineering
Languages : en
Pages : 814
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Die Entwicklung von Weltraumfahrzeugen ist ein Industriezweig, der in den vergangenen drei Jahrzehnten beständig gewachsen ist. Heute ist es eine komplexe technische, internationale Branche. Dieses Buch vermittelt Informationen über alle Mechanismen von Weltraumfahrzeugen. Spitzenexperten auf diesem Gebiet, die in verschiedenen Disziplinen zu Hause sind, haben einen wichtigen Beitrag hierzu geleistet. Das Buch ist in drei Teile untergliedert: Grundlagen und technische Eigenschaften wichtiger Materialien; Entwicklung und Verhalten kritischer Komponenten und eine Einführung in Fahrzeugniveau-Analysen und Integrationstechniken. (01/98)
Author: Bernard Fox
Publisher: RAND Corporation
ISBN:
Category : History
Languages : en
Pages : 268
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1. Introduction / 2. Space system fundamentals / 3. Reviewing a cost estimate / 4. Space vehicle cost crosschecks / 5. Common issues in estimating space programs / 6. Resources for space system cost estimation / 7. Recommendations.
Author: Air Command Staff College
Publisher: CreateSpace
ISBN: 9781478393559
Category :
Languages : en
Pages : 354
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Book Description
The US National Space Policy released by the president in 2006 states that the US government should "develop space professionals." As an integral part of that endeavor, "AU-18, Space Primer", provides to the joint war fighter an unclassified resource for understanding the capabilities, organizations, and operations of space forces. This primer is a useful tool both for individuals who are not "space aware"-unacquainted with space capabilities, organizations, and operations-and for those who are "space aware," especially individuals associated with the space community, but not familiar with space capabilities, organizations, and operations outside their particular areas of expertise. It is your guide and your invitation to all the excitement and opportunity of space. Last published in 1993, this updated version of the Space Primer has been made possible by combined efforts of the Air Command and Staff College's academic year 2008 "Jointspacemindedness" and "Operational Space" research seminars, as well as select members of the academic year 2009 "Advanced Space" research seminar. Air university Press.
Author: Katherine B. Kidwell
Publisher:
ISBN:
Category : Meteorological satellites
Languages : en
Pages : 424
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Author: United States. National Aeronautics and Space Administration. Apollo 13 Review Board
Publisher:
ISBN:
Category :
Languages : en
Pages : 1000
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