not only absorb the energy of impacts, but also provide mobility for the ring; it must shift in different coordinates over a wide range at small forces. Thus, the shock absorption systems of peripheral docking devices are significantly more complex, and their analysis requires not only two-dimensional, but spatially equivalent mathematical models. 5.6.1. General Concepts An analysis of the values of equivalent masses for different cases of interaction of the rings with guides (Figure 5.17, see Table 5.1) confirms the correctness of the conclusions reached in section 5.5.1 for the “rod and cone” docking device. Mass mx on central impact is usually much larger than in other cases; on the other hand, acceptable transverse forces on the structure are usually substantially smaller than the longitudinal forces. These two properties make it expedient to choose the appropriate correlations between the characteristics of the longitudinal and other shock absorbers and staged characteristics for some of them. Figure 5.17. Dependence of equivalent mass for various cases of interaction (Apollo Soyuz Test Project). 1. guide of the Apollo spacecraft with the ring of the Soyuz spacecraft; 2. guide of the Soyuz spacecraft with the ring of the Apollo spacecraft. m3 in kg; X-axis, 0(0), degrees.
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