Investigation of the Stress-Strain State of a Wheel Flange of the Locomotive by the Method of Finite Element Modeling

Zhussupov, Kenes; Toktamyssova, Aliya; Abdullayev, Seidulla; Bakyt, Gabit; Yessengaliyev, Manarbek

doi:10.5755/j01.mech.24.2.17637

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…During operation of dumps of motor graders equipped with polygonal knives, the main working faces of knives, forming the blade of the blade are subjected to the greatest wear [14][15][16][17]. The following geometric elements of the worn-out blade are installed by studies of the wear resistance of the cutting elements of the auto grader: a wear area located at a negative angle of inclination { to the cutting plane and characterized by width a and the value of the {l angle, rounding of the front edge of the knife, characterized by a radius r. Since different wear elements (r or a) can be determining in…”

Section: Methodsmentioning

confidence: 99%

Investigation of Wear of Cutting Part of Polygonal Knife Car Graders in Different Ground Conditions

Kozbagarov¹,

Amanova²,

Kamzanov³

et al. 2022

Komunikácie

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The wear of cutting elements of auto graders allowed in practice causes an increase in the cutting force by 3 to 4 times, the energy intensity of the cutting process by 1.4 to 3 times, the cost of soil development by 8 to 15 % with a decrease in productivity by 10 to 30 %. This increases the stress state of the entire machine and reduces its operational reliability. Excessive wear of cutting elements leads to economic inexpediency or practical impossibility of further operation of machines. The above-mentioned areas of research on the productive use of machines, the identification and creation of promising structures of working bodies have determined the task of further increasing the efficiency of auto graders based on improving the working elements taking into account their wear resistance.

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Section: Methodsmentioning

confidence: 99%

Investigation of Wear of Cutting Part of Polygonal Knife Car Graders in Different Ground Conditions

Kozbagarov¹,

Amanova²,

Kamzanov³

et al. 2022

Komunikácie

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“…Abroad, in deep open pits, two transport modes, road and rail, are widely used together for transporting rock mass [22], [23]. Practice shows that the highest technical and economic indicators are typical for electrified railway transport using traction units [24]- [27].…”

Section: Introductionmentioning

confidence: 99%

Substantiation and development of innovative container technology for rock mass lifting from deep open pits

Khussan¹,

Abdiev²,

Bitimbayev³

et al. 2022

Min. miner. depos.

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Purpose. The research purpose is to substantiate the rational parameters of innovative container technology for transporting mine rocks in open pits with account of technological advantages. Methods. The winding machine normal operation was determined by calculation performed. The container metal structure was designed in the environment of the Compass-3D software complex. The structural elements were tested for normal operation using computer modeling methods in the APM WinMachine 9.7 program, which gives the possibility to obtain the strength calculation values. Findings. The results of modeling the stresses on the wall of the container and the frame, as well as the yield strength are presented. The test calculation confirms the technical feasibility for operating the dragline-based mine winding machines. The influence of the container capacity on the performance of the winding machine has been determined and the dependence of the economic efficiency of the container technology introduction at the open pit depth has been revealed. Originality. For the first time, on the basis of computer modeling, the parameters of stress distribution on the container wall have been substantiated when performing a strength calculation. It has been determined that the maximum stress in the container wall is 117.52 N/mm2; the principal stress value is 83.85 N/mm2. The safety factor for yield strength is 1.8. The maximum load acting on the structure is 957.5 kgf, which does not exceed the calculated value. Practical implications. The practical importance is to improve mining efficiency, reduce the cost of transporting rocks and ensure automatic container unloading. The use of replaceable containers in open pits can significantly change the formation principles of shovels and transport complexes, increase their performance and the efficiency of shovels in the main processes.

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“…The heterogeneous structure of the deposits, the variety of forms of mineralization and the mineral composition of the rock, even with the current level of knowledge, necessitate an integrated approach to the development of deposits. Moreover, this applies both to the technology of mining and processing [4], and to the use of final products [5,6].…”

mentioning

confidence: 99%

Substantiation of research results on energy efficiency of basalt crushing

Malanchuk¹,

Khrystyuk²,

Stets³

et al. 2022

Nauk. visn. nat. hirn. univ.

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Purpose. To experimentally determine the main design and operational parameters of the influence of rock mass properties on the Roller Crusher performance when processing basalt rock mass. Methodology. The crushing and grinding of basalts are studied by the methods of mathematical statistics in order to identify the results obtained and determine the dependences of technological parameters on the mechanical impact factors. Experimental studies are carried out on the example of basalts from the Rafalivskyi quarry in the Rivne region. Findings. It has been revealed that the elemental composition of rocks in the benches of basalt quarries has a different mineral composition. Experimental studies of the rock crushing results have determined the efficiency of using screening for crushing basalts. The experimental dependences of the roller crusher performance in crushing and grinding modes on the properties of the rock mass have been obtained. Originality. The value of crushed rock fractal joints has been found, when using cone and centrifugal crushers, which is characterized by the shape factor and fractal dimension D. For cone crusher Kf=2.15.0 and D=1.4. For centrifugal crusher Kf=1.51.8 and D=1.17. These parameters testify to the energy feasibility of using centrifugal crushers. The high value of the multiple correlation coefficients R2 and Fisher criterion F, whose value at a significance level of 0.05 is higher than the critical one, indicates a sufficient convergence between the experimental and theoretical results and the accuracy of the obtained analytical dependences. Practical value. The generalized models for determining the Roller Crusher performance, obtained for each rock type, based on significant factors, greatly facilitate the choice of parameters for crushing and grinding processes, and also allow choosing a rational mode of crusher operation.

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Investigation of the Stress-Strain State of a Wheel Flange of the Locomotive by the Method of Finite Element Modeling

Cited by 6 publications

References 9 publications

Investigation of Wear of Cutting Part of Polygonal Knife Car Graders in Different Ground Conditions

Investigation of Wear of Cutting Part of Polygonal Knife Car Graders in Different Ground Conditions

Substantiation and development of innovative container technology for rock mass lifting from deep open pits

Substantiation of research results on energy efficiency of basalt crushing

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