In view of the decisive importance of a disturbance-free environment on the Space Station, and on other orbital systems, for materials processing experiments, a theoretical and semi-experimental analysis of the acceleration environment to be expected on large orbiting spacecraft was undertaken. A unified model of such spacecraft cannot be established; therefore, a number of sub-models representing major components of typical large spacecraft must be investigated. In order to obtain experimental data of forces, a typical spacecraft - an engineering model of the Spacelab - was suspended on long ropes in a high-bay hanger, and equipped with a number of accelerometers. Active components on the Spacelab (fans, pumps, air conditioners, valves, levers) were operated, and astronautics moved boxes, drawers, sleds, and their own bodies. Generally speaking, the response of the Spacelab structure was very similar to the environment measured on Spacelabs SL-1, SL-2, and D-1. At frequencies in the broad range between 1 and about 100 Hz, acceleration peaks reached values of 10(exp -3) and 10(exp -2) g sub o, and even higher.
Microgravity Acceleration Modeling for Orbital Systems
1990
1 pages
Report
Keine Angabe
Englisch
Space Technology , Manned Spacecraft , Acceleration (Physics) , Spacelab , Accelerometers , Reduced gravity , Space processing , Space stations , Spaceborne experiments , Suspending (Hanging) , Air conditioning equipment , Drag , Levers , Models , Pumps , Sleds , Structural vibration , Valves , Foreign technology
Microgravity acceleration modeling for orbital systems
NTRS | 1990
|Microgravity acceleration measurements
Tema Archiv | 1996
|Microgravity Experiment Acceleration Tolerability on Space Orbiting Laboratories
Online Contents | 1996
|Orbital Acceleration Research Experiment
British Library Conference Proceedings | 1995
|