Research of Vibroacoustic Characteristics in the Operator Working Area During Welds Abrasive Treatment

Chukarin, Alexander; Beskopylny, Alexey; Isaev, Alexandr

doi:10.24000/0409-2961-2019-11-7-12

Cited by 18 publications

(6 citation statements)

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“…The difference in the readings of the acceleration sensors on different supports was 0.8-1.2%. The center of the span of the tested beam began to move 2.5-3.5 ms after the beginning of the displacement of the supports [29][30][31]. As a result, alternating loading and unloading processes were consistently implemented in the beams, which led to a change in their stress-strain state.…”

Section: Resultsmentioning

confidence: 99%

Behavior of dispersion-reinforced concrete under dynamic action

Nikolenko

Sazonova

Asminin³

et al. 2022

J. Phys.: Conf. Ser.

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The work of structures under alternating dynamic load has also been studied and modeled. Based on the results of experimental studies, a comparison was made of the work of dispersed-laminated structures under alternating dynamic action of high intensity with the work of reinforced concrete beam elements under similar influences. Dispersed concrete reinforcement changes the properties of the latter. The results of comparative experimental studies of cubes and prisms with different degrees of compression reinforcement are presented. The research results showed a significant effect of dispersed reinforcement on the operation of structures under the investigated influences and the feasibility of combined reinforcement of structures. The use of dispersed reinforcement in structures will improve their performance.

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Section: Resultsmentioning

confidence: 99%

Behavior of dispersion-reinforced concrete under dynamic action

Nikolenko

Sazonova

Asminin³

et al. 2022

J. Phys.: Conf. Ser.

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“…The structure itself is capable of taking the load. All this shows that the use of dispersed reinforcement in road structures that perceive similar loads improves the operational properties of such structures [36,37,38] .…”

Section: Concrete Pavement Manufacturing Processmentioning

confidence: 86%

Monitoring Concrete Road Pavement Damages

Sazonova

Nikolenko

Akamsina

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The paper considers the main processes that affect the quality of concrete road surfaces. The quality of concrete pavement depends on the quality of the preparation of the base, the concrete components quality, and the quality of the coating technology. The processes of concrete components quality control, the process of its manufacture, as well as the control of road surfaces that have fully gained strength and are ready for use are studied. Examples of the defects formation on concrete surfaces are given. The factors influencing the occurrence of deformations in road surfaces are considered. In fact, concrete is a mixture of a binder, coarse and fine aggregate, various additives and water. The process of its production is a set of mandatory measures, without which it will not be possible to obtain high-quality durable material. The measures that exclude the defects formation on concrete road surfaces are proposed. The purpose of the paper is to analyze the processes of concrete road surfaces construction with the identification of the main measures to improve their quality.

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“…Experimental studies of the spectra of noise and vibration during abrasive processing of welded seams of transport machines are presented in [15][16][17][18]. In the course of experimental studies, dangerous and harmful production factors that arise during the processing of transport machine structures have been established.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies of noise and vibration during milling of cast iron parts

et al. 2023

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Machining processes of cast iron parts are accompanied by significant noise and vibration. Exceeding the standard values of vibration and noise adversely affects the health of the operator and reduces the quality of the final product. The article deals with the scientific problem associated with the study of the causes of increased vibrations and noise during the milling of cast iron products. It has been experimentally shown that the existing ones create increased sound pressure in the range from 250 to 8000 Hz, while the sound pressure level reaches 80-92 dBa, which is 15-20 dBa higher than the maximum allowable. In the higher frequency part of the spectrum, the decrease in the intensity of sound radiation is from 4 to 7 dB per octave. The data obtained are the initial information for the calculation of noise reduction systems, based on compliance with sanitary standards. To simplify engineering calculations, vibrational energy loss coefficients for cast iron solid and hollow products are given.

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Research of Vibroacoustic Characteristics in the Operator Working Area During Welds Abrasive Treatment

Cited by 18 publications

References 0 publications

Behavior of dispersion-reinforced concrete under dynamic action

Behavior of dispersion-reinforced concrete under dynamic action

Monitoring Concrete Road Pavement Damages

Experimental studies of noise and vibration during milling of cast iron parts

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