| 摘要 |
On space vehicles, the rotating mechanisms, such as those which comprise one or more ballbearings (14, 14'), are equipped with stacking systems (32, 32') which firmly attach the parts (10, 12) intended to turn with respect to one another, during the launch phase. These stacking systems (32, 32') are then freed by heating members (46, 46') made of a material with a memory of shape. The use of these members makes it possible to place the stacking systems as close as possible to the bearings, in such a way that the forces produced by the launch pass directly from one part to the other without loading the ballbearings. The dimensions and the mass of the latter can thus be minimised. …<IMAGE>… |
