Development of a model of contact shoe brake-drum interaction in the context of a mine hoisting machine

Zabolotnyi, Kostiantyn; Жупієв, Олександр Леонідович; Molodchenko, A.

doi:10.15407/mining11.04.038

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…The develop ment of railway infrastructure [12,13], the acquisition of trac tion rolling stock for industrial enterprises [14] and connecting stations were carried out in accordance with industry plans and, often situationally, depending on the possibility of fi nancing through one or another ministry. Under these condi tions, at individual enterprises, primarily in the mining [15] and metallurgical industries [16,17], as well as in seaports, a significant length of railway infrastructure was built. This rail network is still in operation today.…”

Section: Information Technologies Systems Analysis and Administrationmentioning

confidence: 99%

Increasing the efficiency of using backline and private railway infrastructure in the conditions of the transportation market

Issina¹,

Козаченко²,

Таран³

et al. 2023

Nauk. visn. nat. hirn. univ.

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Purpose. Improving the efficiency of interaction between enterprises that operate public and private railway infrastructure when performing cargo transportation and cargo operations. Methodology. The studies were carried out using the methods of the theory of railway operation and economic and mathematical modeling. Findings. The study found that the transition from a planned economy to a market economy along with increasing customer requirements for the composition and quality of transport services is an objective reason for an increase in carriage downtime at private sidings and junction stations, a shortage of track capacity and shunting locomotives. It is shown that the existing approaches to assessing the effectiveness of the interaction between train tracks of enterprises and mainline railways are aimed at improving the performance of the rolling stock and do not create incentives to solve the problem of the shortage of transfer and processing capacity of the railway infrastructure. Originality. The paper proposes an improved method for assessing the effectiveness of the interaction of participants in the transportation process when performing transportation and cargo operations on the private sidings of industrial enterprises, based on the time the infrastructure is occupied. This approach, unlike the existing one, encourages railways and industrial enterprises to jointly search for the best technological solutions for the use of public and private railway infrastructure. Practical value. The method proposed in the paper for assessing the interaction of participants in the transportation process makes it possible to separate station services in the tariff for the use of the railway infrastructure into separate services of service facilities and track access to them. This will create a competitive environment and encourage participants in the transportation process to use the existing railway infrastructure and develop a new one to obtain a synergistic effect more efficiently.

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Section: Information Technologies Systems Analysis and Administrationmentioning

confidence: 99%

Increasing the efficiency of using backline and private railway infrastructure in the conditions of the transportation market

Issina¹,

Козаченко²,

Таран³

et al. 2023

Nauk. visn. nat. hirn. univ.

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“…Modes of the vehicle operation and indicators of the efficiency of its use are taken into account in [16,17], but without reference to the dimensions and cost of the element base. We also note that the solution to the problem of energy saving also applies to other types of mining and transport equipment [18,19].…”

Section: Introductionmentioning

confidence: 99%

Features of modernization of a truck with a hybrid power transmission

Volodarets¹,

Грицук²,

Таран³

et al. 2023

Nauk. visn. nat. hirn. univ.

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Purpose. Substantiation of peculiarities of modernization of a heavy-duty vehicle with a hybrid power transmission by using the formed set of analytical and technological solutions for power transmission under operating conditions. Methodology. For the developed functional model of a hybrid vehicle operation, the parameters of the functional model and its links are presented, the relationships between the elements are described, and the boundary conditions are formed. A combined series-parallel hybrid drive scheme has been used, as it has a higher efficiency compared to parallel and series ones. When operating in idle mode and low loads, the diesel generator set replenishes the energy reserve in the energy storage device and the vehicle is operated. To recharge the energy storage devices, it is possible to use the traction electric motor as a generator, and during operation it is used in the energy recovery mode during vehicle braking. An optimization mathematical model has been developed to determine the parameters of the power plant and energy storage device, taking into account operating conditions. A procedure has been developed along with, on its basis, a subroutine algorithm for calculating the required energy intensity of the energy storage device and the power of the vehicle’s power plant. An assessment of the modernization effectiveness of mining dump trucks by hybrid power transmission was made. Findings. A functional model of a hybrid vehicle operation under appropriate operating conditions has been developed, and the main parameters limitations of the state have been given. The corresponding procedures and algorithm for calculating the parameters of the energy storage device and the power unit were compiled and then were used in the corresponding computer calculation program. In the study on fuel efficiency, three BelAZ-7547 dump trucks were considered. The values of the kinetic energy configuration were determined with an increase in speed (acceleration) and with a decrease in speed (deceleration). An assessment of the upgrading effectiveness was made for mining trucks with hybrid power transmission. The payback period of the corresponding measures was 1.42 years. Originality. To determine the power storage and power unit parameters, a functional model of a hybrid vehicle operation and an optimization mathematical model for determining the parameters of the power plant and energy storage, taking into account operating conditions, have been developed. The substantiation of a complex of analytical and technological solutions for the power transmission of a hybrid mining dump truck under operating conditions has been carried out. Practical value. The results obtained are useful in the implementation of the modernization of heavy mining dump trucks with hybrid power transmission in the operating conditions.

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“…The development of scientific methods to substantiate the design parameters of mine hoisting installations is the subject of scientific works, the analysis of which is given in work [3]. The researchers set the following tasks: to determine the influence of the geometric and stiffness characteristics of the reinforced drum structure [4], brake devices [5] on its stress-strain state, to develop the method for calculating design loads [6], to create engineering methods for determining the parameters of rational structures of working bodies of mine hoisting machines , to increase the cable capacity of a single-drum mine hoisting installation [7], to substantiate the parameters of equipment for dewatering ropes of mine hoisting installations [8], to improve the method of calculating power factors in the turns of the multilayer winding of rubber cable [9], to determine the effect of rubber cable parameters on the torsional stiffness of the winding body [10].…”

Section: Introductionmentioning

confidence: 99%

Justification of the algorithm for selecting the parameters of the elastic lining of the drums of mine hoisting machines

et al. 2019

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When calculating the stress-strain state of a cylindrical drum of a mine hoisting machine loaded with a metal rope, the stiffness parameters of the elastic lining and frontal surface are taken into account. It is defined that, depending on the values of the radial and bending stiffness of the frontal surface, two zones can be distinguished. If the parameters of the frontal surface fall into the first of them, the stresses in the shell slightly differ from the stresses in the hinged supported shell. The second zone is characterized by a sharp (up to 70%) increase in stresses. An algorithm has been developed for selecting rational parameters of a lined drum, which allows to reduce the stresses in the metal shell by up to 20%.

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Development of a model of contact shoe brake-drum interaction in the context of a mine hoisting machine

Cited by 9 publications

References 9 publications

Increasing the efficiency of using backline and private railway infrastructure in the conditions of the transportation market

Increasing the efficiency of using backline and private railway infrastructure in the conditions of the transportation market

Features of modernization of a truck with a hybrid power transmission

Justification of the algorithm for selecting the parameters of the elastic lining of the drums of mine hoisting machines

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