Figure 3.5. Lock of the docking frame with drive (Soyuz APDA). 1. block of terminal contacts; 2. electrical engine; 3. reducer; 4. “floating” bushing; 5. drum; 6. cable; 7. clamp; 8. eccentric shaft. force Fp a consideration is made of allowances for the position of the clamps and the possible scatter of the rigidity of basic elements (springs, clamps, etc.). The installation of a drive on the lock (Figure 3.5) for a total of eight locks, makes it possible to decrease the force in the cable by 12.5%. Moreover, the scatter of momentum developed by the drive is decreased and the efficiency of
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