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PAYLOAD COMPONENT [5 records]

Record 1 2003-12-08

English

Subject field(s)
  • Orbital Stations
  • Space Exploration Equipment and Tools
CONT

The SRMS [Station Remote Manipulator System] is a remotely controlled six degree-of-freedom payload handling device comprised of the following component sub-systems... Linking the shoulder, elbow and wrist joints are the upper and lower arm booms. These booms are constructed of graphite-epoxy. The upper arm boom is approximately 5 m long by 33 cm in diameter comprising 16 plies of graphite-epoxy(each ply is. 013 cm thick) for a total weight of just under 23 kg. The lower arm boom is approximately 5. 8 m long by 33 cm in diameter comprising 11 plies of graphite-epoxy for a total weight of just over 22. 7 kg. Each boom is protected with a Kevlar bumper(the same material used in bulletproof vests) to preclude the possibility of dents or scratches on the carbon composite.

OBS

arm boom: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Équipement et outillage d'exploration spatiale
OBS

Les segments relient les articulations de l'épaule, du coude et du poignet pour former la partie supérieure et inférieure du bras. Ceux-ci sont fabriqués de matériaux composites en graphite/époxy. Le segment supérieur mesure environ 5 m de longueur et 33 cm de diamètre. Il est formé de 16 couches de composite en graphite/époxy (chaque couche étant d'une épaisseur de 0,013 cm) et pèse un peu moins de 23 kg. L'avant-bras mesure 5,8 m de longueur et 33 cm de diamètre. Il est constitué de 11 couches de composite graphite/époxy et pèse 22,7 kg. Chaque segment est protégé par un revêtement en Kevlar (le même matériel utilisé pour la fabrication des gilets pare-balles) afin de prévenir les dommages éventuels (bosses et égratignures).

OBS

segment du bras : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 1

Record 2 2003-09-12

English

Subject field(s)
  • Orbital Stations
CONT

The calculations for the ISS [International Space Station] quasi-steady acceleration environment can be compared to a set of formal design requirements which state that 50 percent of the ISPR [International Standard Payload Rack] locations within the U. S. Lab, Columbus and the JEM must have quasi-steady accelerations below 1 ug for periods of 30 continuous days a total of 6 times per year. The operation of the Station in Microgravity Mode is designed to produce these 30 day intervals. The quasi-steady acceleration vector has an additional directional stability requirement stating that the component perpendicular to the vector's orbital average must be less than or equal to 0. 2 [mu] g. To meet this requirement the Station's attitude must be controlled during orbit so that it maintains a constant position relative to the LVLH [Local Vertical/Local Horizontal] axes.

CONT

The quasi-steady state acceleration level is determined primarily by the combined effects of atmospheric drag (due to the finite residual Earth’s atmosphere at the orbital altitude of the ISS), and gravity gradient stabilisation of the ISS. Gravity gradient stabilisation uses the principle that a body in orbit around the Earth will tend to rotate about it’s centre of mass, as each part of the body will tend to follow it’s own orbit. It will normally oscillate about a mean orientation, but will eventually remain in a stable orientation with respect to the Earth. The normal orientation for the ISS is the Torque Equilibrium Attitude discussed earlier. The resultant combination of atmospheric drag, gravity gradient and other secondary effects produce a set of gravity contours (i.e., locations of equal gravity level) which define the quasi-steady state microgravity environment of the ISS.

OBS

quasi-steady acceleration environment: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

Les modèles d'analyse dynamique (DAC 8) pour l'ISS [International Space Station] prévoient un environnement caractérisé par des vibrations de l'ordre du milli-g (10-4 g) plutôt que des conditions de véritable microgravité (10-6 g) en raison des activités et des divers éléments de l'ISS qui causent des vibrations intempestives (gigue gravitationnelle). Les travaux antérieurs menés à bord de la navette et de Mir ont montré que le milieu est caractérisé par des vibrations aléatoires continues, orientées dans tous les sens, avec des accélérations de l'ordre du milli-g et des crêtes dépassant souvent les 10 milli-g.

OBS

milieu gravitationnel quasi stable : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 2

Record 3 2000-04-01

English

Subject field(s)
  • Electronic Components
  • Computers and Calculators
CONT

The INTEGRAL ISVV project deals with four different SW modules; the attitude control computer SW, the star tracker SW, the central data management unit SW and the digital processing electronics(DPE) common services SW(CSSW). This case only covers the last SW component, the DPE CSSW. Together the DPE and the DPE CSSW provide a computing platform for the payload(scientific instruments) on the INTEGRAL satellite.

French

Domaine(s)
  • Composants électroniques
  • Ordinateurs et calculateurs

Spanish

Save record 3

Record 4 1994-04-28

English

Subject field(s)
  • Containers
  • Air Freight
DEF

component supporting the payload.

French

Domaine(s)
  • Conteneurs
  • Fret aérien
DEF

élément supportant le chargement.

OBS

plancher : terme uniformisé par le CN.

Spanish

Save record 4

Record 5 1976-06-19

English

Subject field(s)
  • Air Transport

French

Domaine(s)
  • Transport aérien

Spanish

Save record 5

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