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D-2 Acceleration Characterization
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English
Abstract
During the Second German Spacelab Mission D-2, extensive onboard measurements of the residual acceleration have been performed. The payload was equipped with accelerometer packages distributed over the entire Spacelab module. The Microgravity Measurement Assembly (MMA) was the core system comprising fixed mounted as well as mobile sensor packages. On-board video has been taken as means to correlate the measured accelerations with mission events. The D-2 microgravity characterization program also included numerical calculations to predict low frequency effects which cause accelerations outside the sensor detection range. Results of characteristic quiet mission phases show that the microgravity level of D-2 was below the requirements of the Space Station. Data of active phases reveals what can be done to improve the microgravity quality of Spacelab missions by payload design and operation.
Authors
Citation
Hamacher, H. and Bluemel, U., "D-2 Acceleration Characterization," SAE Technical Paper 941361, 1994, https://doi.org/10.4271/941361.Also In
References
- Alexander, J. I. D. “Low gravity experiment sensitivity to residual acceleration: a review” Microgravity Science and Technology 3 52 68 1990
- Langbein, D. Tiby, C. “Allowable g - levels for microgravity payloads” Final Report for ESA Batelle Frankfurt 1 24 1984
- Monti, R. Langbein, D. Favier, J. “Influence of residual accelerations on fluid physics and materials science experiments” “Fluid Sciences and Materials Science in Space” Walter H. U. Springer-Verlag Berlin 1987
- Hamacher, H. Jilg, R. Merbold, U. “Analysis of microgravity measurements performed during D1” ESA SP-256 413 420 1987
- Eilers, D. Gerhard, I. Hofer, B. Rudolf, F. Brungs, W. “Microgravity Measurement Assembly (MMA) for Spacelab Module missions” IAF-88-343 1 8 1988
- Gerhard, I. de Coulon, Y. “The Microgravity Measurement Assembly MMA”
- Rogers, M. J. B. Alexander, J. I. D. “Residual acceleration data analysis for Spacelab missions” Microgravity Sci. Technol. 1 43 49 1992
- Cooke, C. et al “SDI Space Shuttle based experiments” The Charles Stark Draper Lab Cambridge 1868 1986
- Hamacher, H. “Spacecraft low frequency acceleration calculation” AIAA Journal for Spacecraft and Rockets