| Autor: |
Brad T. Perkins, Hector M. Rodriguez |
| Rok vydání: |
1999 |
| Předmět: |
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| Zdroj: |
40th Structures, Structural Dynamics, and Materials Conference and Exhibit. |
| DOI: |
10.2514/6.1999-1291 |
| Popis: |
A feasibility study on the implementation of passive vibration isolation for the Japanese International Standard Payload Rack/Microgravity Science Glovebox Facility is presented. Predictions on the expected acceleration environment aboard the International Space Station have shown that vibration isolation will be required for excitations at frequencies above 0.3Hz. The present work searches the possibility of achieving the desired microgravity environment by using off-theshelf passive vibration isolators. Three different isolator configurations are studied. First, an array of ten orthogonal isolators is investigated. Then, an optimum design approach is developed to find optimum isolator orientations in order to improve the performance of the payload rack isolation system. Two contigurations with different number of isolators are designed using this approach. The results show that, even though the optimized configurations significantly improve the performance of the isolation system, the stiffness provided by umbilical components prevents the response of the rack from complying with the acceleration requirement |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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