Abstract
The contact interaction of bodies with surfaces of similar shape is investigated in the work. Cases of bodies with contact surfaces, the gap between which is a function of two coordinates, are considered. On the example of semi-matrices of molds the regularities of contact pressure distribution are established. The effect of geometry variation away from the nominal shape as well as the properties of the intermediate layer on contact pressure distribution is evaluated. The contact of bodies whose surfaces coincide in the nominal state along one line is also investigated. The influence of perturbations of the gap shape between these bodies along the lines of incidence was investigated on the example of rollers. The influence of such perturbation on the contact pressure distribution is demonstrated. The influence of the perturbation of the crossing angle between the rollers and the properties of the intermediate layer on the contact pressure distribution is also investigated. It was established that ultimate performance of machine units that contain parts in conforming contact are determined not by the nominal shape of the working surfaces but rather by the actual shape due to the deformations under the loads.
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