Investigation of Coupling Strength at Non-Central Interaction of Railcars

The strength of the coupling device under action operating loads with regard to non-central interaction two cars is defined. When longitudinal force transmitted through coupler, points its possible rotation can be either upper ribs shank end surface or damping body support surface. tail part coupler conditions eccentric compression (or tension) by force, which non-parallel axis. Through any cross-section shank, transverse and forces are transmitted, applied at a point far from center gravity section. Using principle addition action, dependence for definition maximum normal stresses in extreme fibers analyzed section most distant main axis inertia, has been obtained. damage area jumper bending horizontal vertical planes, occur during operation, justified. Calculation methods make it study influence eccentricities application relative difference levels sections on magnitude compressive loads. Application obtained results will not only help ensure devices, but also freight cars’ durability increasing train weight speed.