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Recent Measurements of Experiment Sensitivity to G-Jitter and Their Significance to ISS Facility Development

Published online by Cambridge University Press:  10 February 2011

R. A. Herring  and
B. Tryggvason
R. A. Herring
Affiliation:
Microgravity Sciences Program, Canadian Space Agency, St. Hubert, PQ, J3Y 8Y9
B. Tryggvason
Affiliation:
Canadian Astronaut Program, Canadian Space Agency, St. Hubert, PQ, J3Y 8Y9
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Abstract

Recent experimental measurements of various microgravity experiments have been taken on the Mir and Space Shuttle under different conditions of microgravity using the Microgravity-vibration Isolation Mount (MIM). The results to date show a clear difference when the experimental measurements are taken from g-levels offered by the Mir and the Space Shuttle (non isolated) to g-levels offered by MIM (isolated) which have been reduced by two orders of magnitude. Concern for the International Space Station (ISS) experimental facilities arises when the quality of microgravity on the Mir and Space Shuttle (non isolated), which is believed to be not good enough, has been measured to be better than the ISS Requirement established by NASA for isolated racks, which will be significantly better than those racks not isolated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 551: Symposium JJ – Materials in Space-Science, Technology & Exploration , 1998 , 269
Copyright
Copyright © Materials Research Society 1999

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References

1 Herring, R. A., IAF - 97-IAA.12.2.03, Turin (1997).Google Scholar
2 Tryggvason, B., IAF -97-J.2.04, Turin (1997).Google Scholar
3 Herring, R. A., Tryggvason, B., IAF - 98, Melbourne (1998).Google Scholar
4 Tryggvason, B. and Herring, R. A., G-jitter Workshop, ESTEC (September, 1998).Google Scholar
5 Robert, J. and Smith, R. W., “Diffusion in Liquid Metals” QUELD II Review Meeting, CSA Headquarters (August, 1998).Google Scholar
6 Smith, R. W., G-jitter Workshop, ESTEC (September, 1998).Google Scholar
7 Frohberg, G., Kraatz, K. H. and Wever, H., in: Scientific Results of the German Spacelab Mission D1, Norderney Symposium (August 1986) pp. 144–151.Google Scholar
8 Farris, S., Rezkallah, K. S. and Bugg, J., “A Study on the Motion of a Bubble Subjected to Simulated Broadband G-jitter: Results from a Recent Shuttle Flight” Proc. 1st Pan Pacific Workshop on Microgravity Science, Tokyo (July 8-10 1998).Google Scholar
9 Mei, R. et al. , “A note on the history force on spherical bubble at finite Reynolds number” Physics of Fluids 6(1) 418–420 (1994).Google Scholar
10 Ouelette, M. and Tryggvason, B., FLEX Review Meeting, CSA Headquarters (September, 1998).Google Scholar
11 Thomson, J. R., Casademunt, J, Drolet, F. and Viñals, J., “Coarsening of solid-liquid mixtures in a random acceleration field” Phys. Fluids 9 (5) 1336–1343 (1997).Google Scholar
12 Tryggvason, B., DeCarufel, J. and Stewart, W., “Microgravity Vibration Isolation Systems: General Performance Model Applied to Various Microgravity Platforms”. To be published.Google Scholar