Improvement in Babbit Sliding Bearing Quality with Electrospark Alloying

This work aims to design a magnetic suspension for an experiment to measure gravitys velocity. Such device must rotate two objects symmetrically with the greatest mass and largest radius as possible, at the speed of [Formula: see text], which means this device falls into the high-speed machines category. The guidelines and solutions proposed in this paper constitute a contribution to this class of engineering problems and were based on an extensive literature search, contacts with experts, the tutors and author’s experience, as well as on experimental results. The main solution proposed is a hybrid bearing that combines a radial passive magnetic bearing with an axial sliding bearing, here called MPS (Magnetic Passive and Sliding) bearing.

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Bearing profile of sliding tribological systems

10.36652/0042-4633-2021-3-53-56 ◽

2021 ◽

pp. 53-56

Author(s):

Keyword(s):

Hydrodynamic Lubrication ◽

Surface Profile ◽

Experimental Methods ◽

Hydrodynamic Characteristics ◽

Bearing Surface ◽

Tabular Data ◽

Sliding Bearing ◽

Friction Process ◽

Operational Characteristics ◽

Wide Range

The main contours of the bearing surfaces of friction pairs with hydrodynamic lubrication are considered. Analysis of tabular data and graphs obtained by experimental methods made it possible to establish additional parameters of influence on the hydrodynamic characteristics of the friction process and the operational characteristics of tribological systems, in a wide range of load-speed modes. Keywords: sliding bearing, hydrodynamics, bushing, bearing surface, profile, circle, ellipse, wavy contour, wear. [email protected]

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Method for calculating the sliding bearing of a piston engine and compressor

10.36652/0042-4633-2021-7-51-54 ◽

2021 ◽

pp. 51-54

Author(s):

Keyword(s):

Piston Compressor ◽

Piston Engine ◽

Sliding Bearing ◽

One Dimensional ◽

Working Length ◽

Bearing Load ◽

Compressor Piston ◽

Crankshaft Journal ◽

Relative Eccentricity ◽

Engine Friction

A one-dimensional model for calculating the sliding bearing of a piston engine and compressor is proposed. The results of approximation of the graphs by analytical dependences of the relative eccentricity on the bearing load coefficient for different values of the ratio of the working length of the bearing to the diameter of the crankshaft journal are presented in the form of exponential functions. Keywords: sliding bearing, heat balance, piston compressor, piston engine, friction [email protected]; [email protected]; [email protected]

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Mathematical Model for a Lubricant in a Sliding Bearing with a Fusible Coating Considering Viscosity Depending on the Pressure

Journal of Machinery Manufacture and Reliability ◽

10.3103/s1052618821080069 ◽

2021 ◽

Vol 50 (8) ◽

pp. 720-726

Author(s):

D. U. Khasyanova ◽

M. A. Mukutadze ◽

A. M. Mukutadze ◽

A. V. Morozova

Keyword(s):

Mathematical Model ◽

Sliding Bearing

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