Radial Plain Bearings Operating on Viscoelastic Lubricant Caused by the Melt, Taking into Account the Dependence of the Viscosity of the Lubricant and the Shear Modulus on the Pressure

摘要

The method of forming an exact self-similar solution for the hydrodynamic calculation of a radial plain bearing operating on a viscoelastic liquid lubricant due to the melt of the guide is given in the paper, taking into account the dependence of the viscosity of the lubricant and the shear modulus on pressure. Based on the system of equations for the motion of the incompressible fluid with viscoelastic properties, the analytical dependence for the profile of the molten surface of the guide is obtained for the case of a "thin layer", taking into account the dependence of the viscosity of a viscoelastic lubricant and the shear modulus on pressure, and the continuity equation, expressions for the energy dissipation rate. In addition, the main operating characteristics of the friction pair under consideration are determined. The effect of the parameter due to the melt of the guide and the Deborah number on the components of the supporting force vector and the friction force are estimated.