By Dominique Bonneau, Aurelian Fatu, Dominique Souchet

This sequence offers the mandatory components to the advance and validation of numerical prediction versions for hydrodynamic bearings. This publication with the explicit case of inner combustion engine (ICE) magazine bearing lubrication. Many examples, in relation to a variety of kinds of ICE, are presented.


This sequence presents the mandatory parts to the improvement and validation of numerical prediction types for hydrodynamic bearings. This booklet with the categorical case of inner combustion engine Read more...

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Extra info for Internal Combustion Engine Bearings Lubrication in Hydrodynamic Bearings

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The normal problem solution gives: – the distribution of opening and closing zones (contact areas); – the distribution of normal nodal forces; – the node openings at the joint plane; – the coefficient a and the angle α of rigid body displacement of the cap. It is assumed that the contact area and the maximum force on the joint plane as well as the hydrodynamic pressure forces at the film level are known. The displacement of the nodes in axial direction z is assumed to be insignificant. 16] where (i) and y1(i) and (i) are the normal and tangential components of the force on node i, are the tangential displacements of node i, respectively, for the current and the previous load, y1(P(i)) and are the tangential displacements of the node i projection on surface 2, respectively, for the current and the previous load and KTi is the penalty coefficient similar to a tangential stiffness at node i.

5]. The last is always less than the adhesion coefficient. It is worth noting that unlike the normal problem, the solution to the tangential problem depends on the load history. Following the same approach as with the normal components, the following expressions can be written as: where Cb represents the y displacement component of the rigid solid at the cap. It must be noted that the displacement along y does not depend on the rotation of the rigid solid at the cap as the joint plane is located at x = 0.

81–94, 1992. 219, pp. 435–449, 2005. , Mécanique des moteurs alternatifs, Technip, Paris, 1984. 27–39, 1996. 1 This choice is necessary for achieving a non-hyperstatic assembly. 2 The Crank Shaft–Connecting Rod Link The crank shaft and connecting rod link, which is also referred to as the “connecting rod big end bearing”, from a lubrication point of view is definitely one of the best studied parts of the internal combustion engine [BOO 01, BOO 10]. Until the late 1960s, there were few drivers who had not “thrown out a rod”.

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