NASA Technical Reports Server NTRS 20150000177: Dust Tolerant Commodity Transfer Interface Mechanisms for Planetary SurfacesReportar como inadecuado



 NASA Technical Reports Server NTRS 20150000177: Dust Tolerant Commodity Transfer Interface Mechanisms for Planetary Surfaces


NASA Technical Reports Server NTRS 20150000177: Dust Tolerant Commodity Transfer Interface Mechanisms for Planetary Surfaces - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Descargar gratis o leer online en formato PDF el libro: NASA Technical Reports Server NTRS 20150000177: Dust Tolerant Commodity Transfer Interface Mechanisms for Planetary Surfaces
Regolith is present on most planetary surfaces such as Earths moon, Mars, and Asteroids. If human crews and robotic machinery are to operate on these regolith covered surfaces, they must face the consequences of interacting with regolith fines which consist of particles below 100 microns in diameter down to as small as submicron scale particles. Such fine dust will intrude into mechanisms and interfaces causing a variety of problems such as contamination of clean fluid lines, jamming of mechanisms and damaging connector seals and couplings. Since multiple elements must be assembled in space for system level functionality, it will be inevitable that interfaces will be necessary for structural connections, and to pass commodities such as cryogenic liquid propellants, purge and buffer gases, water, breathing air, pressurizing gases, heat exchange fluids, power and data. When fine regolith dust is present in the environment it can be lofted into interfaces where it can compromise the utility of the interface by preventing the connections from being successfully mated, or by inducing fluid leaks or degradation of power and data transmission. A dust tolerant, hand held -quick-disconnect- cryogenic fluids connector housing has been developed at NASA KSC which can be used by astronaut crews to connect flex lines that will transfer propellants and other useful fluids to the end user. In addition, a dust tolerant, automated, cryogenic fluid, multiple connector, power and data interface mechanism prototype has been developed, fabricated and demonstrated by NASA at Kennedy Space Center KSC. The design and operation of these prototypes are explained and discussed.



Autor: NASA Technical Reports Server (NTRS)

Fuente: https://archive.org/







Documentos relacionados