Figure 5.25 [left]. Simplified scheme with independent shock absorbers. Figure 5.26 [right]. Schematic of displacement of the ring with guides, a. lateral displacement (with simultaneous displacement along the x axis); b. inclination in pitch and yaw relative to the center (1) and edge (2) of the ring; c. roll rotation (with simultaneous displacement along the x axis). Left column, Soyuz APDA; right column, Apollo APDA. absorbers in the main coordinates has a number of advantages over a scheme with differential connections (Figure 5.26). The main advantage is the substantially larger displacement of the ring along the longitudinal axis (approach to the frame) for lateral deviations and rotations in roll, pitch, and yaw. The Soyuz and Apollo APDAs have a close value of maximum deviation in main coordinates. However, as a result of additional longitudinal displacements with simultaneous deviations of the ring in all coordinates the range of displacements for a scheme with independent shock absorbers is decreased by a factor of 2-3 (Table 5.2). Moreover, when there
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