About the movement of the car on the high-speed sections of the sorting hill

Abstract

The content of the article is based on the classical provisions of mechanics (the Dalembert principle) for non-ideal communication. The analytical proof is given that the linear acceleration of the car with its equally accelerated movement along the descent part of the sorting slide depends on the force under the influence of which the car rolls down the slope of the slide, the strength of resistances of all kinds, on the reduced mass of the car with the load, taking into account the moment of inertia of the rotating parts. At the same time, the results of calculations proved that taking into account the mass of rotating parts practically does not affect the acceleration of the carriage along the slope of the slide. The acceleration formulas and the resulting forces acting on the car are presented in the generally accepted notation and in the usual sense, followed by the calculated data.

The body of a dynamometer wagon for special technical purposes

“…Thus, the test results and the stress-strain state of the design of the prototype wagon, under the action of statically applied longitudinal compressive and tensile test loads on it, showed that the proposed design of the wagon meets the established strength requirements, no visible damage and residual deformations were found in the design of the prototype wagon [18][19][20].…”

“…30 forming an I-beam (Figure 5, c). The beam has a narrowing at the point of attachment to the longitudinal beam without changing the cross-section profile [18][19][20]. Thus, the performed strengthening of the frame of a passenger wagon analog of the model 61-907 on the basis of theoretical studies conducted to assess the structural strength of the wagon body will increase the cross-sectional area of the wagon frame nodes in proportion to the stresses arising from tensile and compressive loads so that the stresses from them meet the requirements and do not exceed the permissible values.…”

“…This makes it possible to reduce energy costs for transportation, achieve fuel economy, and reduce emissions into the atmosphere on the basis of a Sustainable Development Program. For this purpose, a critical analysis of modern scientific literature was made [7,9,11,[13][14][15][16][17][18][19][20], which allowed us to conclude that it is necessary to use lightweight materials, as well as reinforcing technologies for their processing, including for their use in the creation of new wagons, including dynamometric.…”