Microarchitecture Space Studies Report - Technische Universität ...

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Technische Universität München Microarchitecture Space Studies Project: D. BOCS © 1999 all copyrights of the shown projects are with the designers and the departement for design and architecture at tu münchen Summary Report Date: 12/06/1999 Page: D 04 that need to be taken to different places in the space station, e.g.. Joining BOCSes together was easy in zero-g. It was even possible to join units together while floating around without being restrained. Inserting BOCSes was also easy, only the insertion of the last unit needed a little more force, but this was mainly due to the unprecise manufacturing of the joints (prototype!). The insertion of the last unit worked a lot easier in zero-g than in one-g, but it will still need improvement. Joining BOCSes on top of each other (to be stacked in a CTB-bag) was a little difficult. The joints used here were too long and tended to jam. But this should be a easy problem to solve. One thing that needs further development is the fixing mechanism of the joints. Several possibilities were tested during the flight but it will need a little more thinking about. Discussion A questionnaire was specially developed to discuss the BOCS. Eight test persons were available for the evaluation (Constance Adams, Nigel Packham, Hubert Brasseaux, Andreas Vogler, students and others). Here is the list of questions with the average score (1-7) 1. Ease of opening door 6,6 2. Opening doors within confines of rack volume 7,0 3. Level of restraint required to open door 6,6 4. Fixation of doors in opened position (spring hinge) 6,6 5. Automatic opening of doors 6,4 6. Accessing all units within confines of rack volume 7,0 (not always performed) 7. Ease of putting items in the units 7,0 8. Ease of fixing items into the units 6,0 (better grip!) 9. Level of restraint required to put and fix items into the units 6,8 10. General handling of an unrestrained unit in zero-g 7,0 (not always performed) 11. Attaching units to each other without the use of a „rack wall“ 7,0 (not always performed) 12. Inserting a unit into a rack 5,0 (not always performed) The results speak for themselves. The whole system had an average score of 6,6. The opening mechanism (press mechanism and spring hinge) were very much approved. Just as much the interior and the size of a unit. As seen before the grip of the adjustable bar and the insertion of units in the rack need further improvement.
Technische Universität München Microarchitecture Space Studies Project: D. BOCS Conclusion © 1999 all copyrights of the shown projects are with the designers and the departement for design and architecture at tu münchen Summary Report Date: 12/06/1999 Page: D 05 Generally the Built-in Onorbit Container System works well in zero-g. The opening press mechanism and the spring hinge don’t need further testing, as they proved to be very useful and completely acceptable. The system of fixing items merely needs small adjustments to be made but was otherwise very successful. Further testing would be necessary to improve the joining mechanism of the units. The joints will have to be manufactured more precisely to make it easier to insert „the last“ BOCS. The Built-in Onorbit Container System proved to be multifunctional modular storage system in zero-g, that is exceptionally easy to use and very easy to handle. The KC-135 flights were very successful.
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