Mathematical and experimental study of deformations of a steel roll of a road roller with a variable geometry of a contact surface

Doudkin, Mikhail; Kim, Alina; Sakimov, Murat

doi:10.30657/pea.2019.25.01

Cited by 7 publications

(9 citation statements)

References 4 publications

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“…It was decided to replace natural snow with a material that most closely imitates snow and has a reproducible constancy of properties, especially since recommendations were found according to which the starting materials were selected, namely sawdust, sand and paraffin, a mixture of which in a certain percentage proportion was imitating snow material [4,6,7,12]. The same materials were used in previous experiments, so the physical and mechanical properties of the material simulating snow did not differ from those known [1,2,13].…”

Section: Experimental Studiesmentioning

confidence: 99%

Experimental study of the snow removal process by helical blade of the milling feeder

Moldakhanov¹,

Doudkin²,

Kim³

et al. 2023

J Appl Eng Science

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The article presents the process effectiveness evaluation of the throwing snow mass from the face into the operating area of the snowplow rotor-thrower by a milling feeder, when using a paddle type intensifier. During the operation of the milling-rotor snowplow, an operational problem sometimes arises, arising from an incorrectly set slope (angle of elevation) of the helical line of the milling feeder, due to which snow is thrown forward by it along the snowplow, forming an additional amount of snow for processing, which increases the overall energy costs for the development of snow and the movement of the machine in the snow massif and at the same time reduces the performance of the snowplow [1, 2]. The area of rational values of the design and operating parameters of the milling feeder and the bladed intensifier of the snowplow has been calculated. The process of efficiency increase of the milling-rotary snowplow (MRS) and its performance by adjusting the helix angle α and installing a bladed intensifier reducing the power of the working process will make it possible to perform work on clearing snow and ice formations using reduced number of machines, moreover in much less time. A more massive supply of snow mass to the blades of the rotor-thrower due to the use of an intensifier will lead to a decrease in the total energy costs for the snowplow working process. Therefore, by increase the working equipment efficiency of a MRS with the energy intensity decrease of snow development by selecting rational parameters for its design and workflow is the simplest and most effective way to rationally organize the workflow and improve machines of this type of snowplow.

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Section: Experimental Studiesmentioning

confidence: 99%

Experimental study of the snow removal process by helical blade of the milling feeder

Moldakhanov¹,

Doudkin²,

Kim³

et al. 2023

J Appl Eng Science

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“…To compare the effectiveness of ITEX fiber with existing analogs, SFRC with an anchor fiber 1/50 Hendix and Dramix 3D 80/60BG was also considered. The amount percentage of reinforcement with wire fiber was adopted as 1%, 1.5% and 2%.The composition of the components for fine-grained concrete matrix was selected in accordance with the recommendations of [3,[8][9][10][11][12] and is shown in table 1.…”

Section: Experimental Researchmentioning

confidence: 99%

Properties of the Steel-Fiber-Reinforcedconcrete With Dispersed Reinforcing Wire Fiber From Technogenic Waste

Doudkin¹,

Kim²,

Vavilov³

et al. 2020

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN JSC «D

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The article presents the results of theoretical and, most importantly, experimental studies of some properties of steel-fiber-reinforcedconcrete reinforced with dispersed reinforcement from industrial wastes, namely, ITEX steel wire fiber from SPA INNOTECH from spent steel ropes, a large number of which are used as raw materials for fiber production, has accumulated in the region with the mining industry (East Kazakhstan region). The result of the research was indicators of tensile strength of fiber-reinforced concrete during bending of samples, characteristics of crack resistance, and impact strength indicators of fiber-reinforced concrete reinforced with fiber from industrial waste. Knowing and demonstrating these characteristics will make it possible to more effectively ensure the possibility of selling a new product on the building materials market. This publication has been carried out as part of the sub-project Technology for Manufacturing Fiber from Technogenic Wastes, funded by the Government of the Republic of Kazakhstan and the World Bank, Project for Stimulating Productive Innovations.

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“…The main properties and principles of the operation of FBG are considered in reviews [23][24][25][26]34,37]; in particular, technology of FBG manufacturing is considered in [23][24][25]29,33,34,36,38], and solutions of applied problems are considered in [23][24][25][26][27][28]30,[38][39][40]. The use of FBG for detecting and monitoring defects of concrete blocks is presented in [41], and mathematical solutions for some types of deformation are presented in [42].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Measurement of Deformation Wave Parameters by Sensors of Various Types

Smailov,

Koshkinbayev,

Tashtay

et al. 2023

Sensors

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The results of applications of various methods for measuring the parameters of high-speed loading using a strain gauge, a fiber Bragg grating located on a metal measuring rod and an interferometer monitoring the movement of the free boundary of the end of the rod are presented. Numerical simulation confirmed the adequacy of the description of the shock-wave process according to experimental data and showed that, with the thickness of the adhesive layer fixing the fiber Bragg grating and the strain gauge on a dimensional rod up to 100 µm, the deformation parameters of the sensors correspond to the parameters of the stress–strain state of the rod. Experimentally, a good correspondence of the results of measuring the magnitude of the relative deformation at a pulse duration of 10–100 µs using sensors of various types is shown, and an estimate of the limit values of the measured values of the deformation wave parameters is given.

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Mathematical and experimental study of deformations of a steel roll of a road roller with a variable geometry of a contact surface

Cited by 7 publications

References 4 publications

Experimental study of the snow removal process by helical blade of the milling feeder

Experimental study of the snow removal process by helical blade of the milling feeder

Properties of the Steel-Fiber-Reinforcedconcrete With Dispersed Reinforcing Wire Fiber From Technogenic Waste

Numerical Simulation and Measurement of Deformation Wave Parameters by Sensors of Various Types

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