Figure 2.1. Schematic of the analysis of docking device elements insuring the integrity of the joint (using the example of the APDA). The circles indicate elements of construction or the state of these elements, linked by logical symbols, the half circle indicating “AND”, the triangle indicating “OR”. 1. maintenance of docked state; 2. hermeticity; 3. locks (closed); 4. hull (intact); 5. active APDA; 6. passive APDA; 7. active locks; 8. passive locks; 9. seal; 10. hull; 11. integrity; 12. nonoperation; 13. drive (no actuation); 14. pyrotechnic bolts; 15. lock mechanisms; 16. no deformation of (illegible]; 17. cable (integrity); 18. no electrical power; 19. no commands; 20. no damage; 21. clamp; 22. drive; 23. blocking; 24. no commands; 25. no turn; 26. no actuation; 27. stopper plate; 28. no distortion of profile; 29. “dead” position; 30. brush of engine; 31. stopper plate.
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