Designing the height of the first profile of the marshalling hump

Abstract

The height of the high-speed section of the sorting slide. Design of high-speed section of the marshalling hump. To prove mathematically the absence of theoretical basis of the formula by which the height of the first profile section of the marshalling hump is calculated in current method of calculation of marshalling humps. The paper uses the theorem on the change of kinetic energy for a non-free material point in the final form, known from theoretical mechanics. The results of the research revealed that the formulas by which the height of the first profile section of the marshalling hump is calculated contradict the theorem on the change of kinetic energy for a non-free material point in the final form. The results of the research can be used in the processing of the normative-technical document on the design of hump devices on railways and making adjustments to the dynamics of rolling the car in textbooks for universities of railway transport. The results of the calculations proved the incorrectness of the derivation of the formula for calculating the height of the first profile section of the marshalling hump in the normative-technical document “Rules and standards for the design of sorting devices on the railways with gauge 1 520 mm”.

Development, research of a model and an algorithm for organizing data transfer in a monitoring device

“…1 [6,7,2], where: Р S -position reflecting the state of the object during the transmission of information; S Рposition reflecting the inverse state of the object Р S , i.e. lack of information transfer; At the same time, chips are placed in each position Р , Р , Р ...Р n after the measurement procedure is completed and the module is ready to transmit information [8][9][10].…”

“…The timer works cyclically, i.e. after reaching the position "Tn", the timer takes the next position "T1", etc., while all the values of "Ti" at i = 1 ... n will be equal to each other [8][9][10].…”

“…clear that all the input positions of the transition t1 have chips and therefore this the transition is ready to start, which will lead to the redistribution of chips according to the output function of the chip to the position Ps and the removal of the chip from the position РS Fig.3, which in turn confirms the possibility of capturing the information transmission channel by the module for determining the actual voltage on the windings of the impulse relay. Upon completion of the procedure for transferring information to the Ps position, another Fig.4is added[8][9][10].As a result, conditions are created for triggering the transition n t according to its input function and moving the token to position РS , in accordance with the output function , i.e. the chip from position Р S will move to position РS…”

Strength assessment of the body of a weight checking wagon type 640-VPV

“…The transverse forces of interaction between the wagons in [20][21] the curves Pn were determined by the formulas:…”

Kinematic characteristics of the car movement from the top to the calculation point of the marshalling hump

“…i fi is a dimensionless quantity describing the slope of the hump profile in RP sections when taking into account the projected influence of tailwind force F wx [15][16][17][18], which is defined as…”