| Development of a Simulation Capability for the Space Station Active Rack Isolation System Contributor(s): National Aeronautics and Space Administr (Created by), Johnson, Terry L. (Author), Tolson, Robert H. (Author) |
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ISBN: 1288909934 ISBN-13: 9781288909933 Publisher: Biblioscholar OUR PRICE: $55.05 Product Type: Paperback Published: March 2013 |
| Additional Information |
| BISAC Categories: - Education |
| Physical Information: 0.41" H x 7.44" W x 9.69" (0.78 lbs) 194 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: To realize quality microgravity science on the International Space Station, many microgravity facilities will utilize the Active Rack Isolation System (ARIS). Simulation capabilities for ARIS will be needed to predict the microgravity environment. This paper discusses the development of a simulation model for use in predicting the performance of the ARIS in attenuating disturbances with frequency content between 0.01 Hz and 10 Hz. The derivation of the model utilizes an energy-based approach. The complete simulation includes the dynamic model of the ISPR integrated with the model for the ARIS controller so that the entire closed-loop system is simulated. Preliminary performance predictions are made for the ARIS in attenuating both off-board disturbances as well as disturbances from hardware mounted onboard the microgravity facility. These predictions suggest that the ARIS does eliminate resonant behavior detrimental to microgravity experimentation. A limited comparison is made between the simulation predictions of ARIS attenuation of off-board disturbances and results from the ARIS flight test. These comparisons show promise, but further tuning of the simulation is needed. |