Study of the Plain Bearings of Modified Wood for Heavy-Loaded Friction Assemblies

Шамаев, Владимир; Parinov, Dmitriy; Полилов, А. Н.

doi:10.3103/s1052618818020115

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…The flow rate balance equation takes into account both the gradient and portable flow of the working fluid. In this formulation, the calculation method in works [1][2][3][4][5][6][7][8][9][10][11][12] was not considered. The results obtained make it possible to estimate the specific pressures of the working fluid on the working surface of the bearing and to establish their effect on the strength of the bearing material.…”

Section: Discussion Of Results Of the Study Of Specific Pressures On ...mentioning

confidence: 99%

“…However, it is used for lightly loaded bearings, and the above study looks at wooden houses that weigh 40 tons. Paper [4] describes the design of a self-lubricating plain bearing made of modified wood for heavily loaded friction units and the technology of its manufacture. A method for determining the coefficient of friction of wood on steel has been developed and the MI-1M friction machine has been modernized.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…In works [1][2][3][4][5][6][7][8][9][10][11][12] there is no information on the design of wooden bearings of hydrostatic type and no determination of specific pressures of the working fluid on the surface of the bearing, and there is no thermal analysis of wooden hydrostatic bearings.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Revealing the influence of structural and operational parameters of a wooden hydrostatic bearing on its performance

Nazin

2022

EEJET

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Wooden bearings, lubricated with water and other low-viscosity lubricants, have been used for centuries. In steamship engines, turbines of hydroelectric power plants and propellers of submarines, it is proposed to use wooden hydrostatic bearings, which are guaranteed to provide liquid friction and have high reliability. The object of this study is hydrostatic and thermal processes in sliding supports with wooden hydrostatic bearings. The influence of the design and operational parameters of a wooden hydrostatic bearing on its performance was tackled. Theoretical dependences are given, making it possible to determine the bearing capacity and temperature increase in the hydrostatic bearing. Quantitative values of specific pressures on the working surface of the bearing and an increase in the temperature of the working fluid due to friction and pumping losses were established. It was found that the specific pressures of the liquid do not exceed the tensile strength of the bearing material. The reduction in load capacity due to an increase in the temperature of the working fluid was 10.95 %, owing to the small change in the temperature of the working fluid in hydrostatic bearings. The results of the study make it possible to establish the permissible boundaries for the purpose of the design and operational parameters of the hydrostatic bearing ensuring its operability. For the effective use of hydrostatic wooden bearings at the listed facilities, it is necessary to have a system for supplying lubricant to the bearing under high pressure. The system should include filters to clean the lubricant from impurities. The theoretical dependences built allow designers of hydrostatic bearings to use them in practical calculations

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Section: Discussion Of Results Of the Study Of Specific Pressures On ...mentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Revealing the influence of structural and operational parameters of a wooden hydrostatic bearing on its performance

Nazin

2022

EEJET

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Changing wood texture with combination of selective treatment and pressing

Шамаев

Медведев

Parinov

2021

IOP Conf. Ser.: Earth Environ. Sci.

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Structural and anatomical models of alder wood have been developed on the basis of technical and physical models of wood. The models enable to solve the problem of penetrating changes in wood texture by combining selective treatment (impregnation) with two wood colouring agents in different directions of anisotropy, followed by uneven pressing. Specimens with the texture of mahogany, rosewood, walnut, etc have been obtained. Alder wood is pressed at an angle of 45° to the radial direction to obtain the texture of mahogany, at an angle of 90° – for a texture of rosewood. At the same time, physical and mechanical properties of modified wood correspond to similar indicators of wood of these species. The study of macro-and microstructure of pressed wood suggests that texture of the obtained material corresponds to the texture of rosewood and mahogany. It is possible to imitate any species of valuable wood using the obtained structural models and the developed techniques.

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