more “lateral” shock absorption systems. A similar effect may partially be obtained by introducing preliminary compression of the spring. For example, when the longitudinal spring is compressed only the lateral shock absorber operates until This is suitable, especially at small , and impact velocities; as follows from the preceding analysis (section 5.1) to obtain small it is expedient that only the lateral shock absorber operate. For large velocities and angles force of impact increases and begins to deform the longitudinal shock absorber, absorbing the majority of the energy, which leads to a decrease in the rate of deformation of the lateral shock absorber. This calculation can be done in two stages using (5.35) and (5.36). The shock absorption system of the Soyuz-Salyut docking device was designed and rated in this way. 5.5.3. Work of the Shock Absorbers After Linkage Immediately after linkage in the general case all shock absorbers are deformed, and their deformation is described by (5.21) or in the two-dimensional case, by (5.23). As shown in section 5.3.3, analysis of the work of linear (longitudinal and lateral) and angular shock absorbers, due to the wide frequency of oscillations can be considered separately. At the same time, as follows from the equations, the work of the longitudinal and lateral shock absorbers are interconnected. This is primarily true of the effect of the longitudinal shock absorber on the lateral one; without considering the momentum created by the angular shock absorber, the equation of deformation of the lateral shock absorber has the form Although the value even for maximum angles between the longitudinal axes of the spacecraft, which usually do not exceed , is substantially smaller than both terms on the right side of are of the same order, since the force of the longitudinal shock absorber after linkage may be substantially larger than the force of the lateral shock absorber.
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