Scholarlink

The implementation of stable micro-EHL lubrication of friction bearing assemblies according to the results of mathematical modeling are achieved due to the increase in the thickness of the lubricating layer according to its distribution in the central and minimum contact zones, taking into account the change in the ellipticity of the contact shape under the dominant influence of the rolling speed and dynamic viscosity of the lubricant. Empirical equations were established based on the results of modeling of the estimation of the minimum thickness hmin at the exit from the contact and the thickness of the lubricating layer in the central micro-EHL zone of the contact h0, as a function of dimensionless variable parameters: speed U, load W, materials G and the ellipticity parameter k, which are recorded in dimensional coordinates (μm) in the form: \({\text{h}}_{\text{min}}=3.37\cdot {\text{U}}^{0.67}\cdot {\text{W}}^{-0.076}\cdot {\text{G}}^{0.48}\cdot \left(1-{\text{e}}^{-0.59\text{k}}\right)\cdot {\text{R}}_{\text{x}};\) \({\text{h}}_{0}=2.43\cdot {\text{U}}^{0.66}\cdot {\text{W}}^{-0.059}\cdot {\text{G}}^{0.55}\cdot \left(1-\text{0,65}\cdot {\text{e}}^{-0.49\text{k}}\right)\cdot {\text{R}}_{\text{x}},\) made taking into account the change in the type of lubricant and the ellipticity of the contact shape.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Modeling of the Micro-EHL Assessment of Lubrication Taking into Account the Change in Ellipticity Forms of Friction Bearing Contact Forms

  • 章节

  • 发表日期：

    2025年

查看全文
  • Oleksandr Milanenko,
  • Ivan Bohdanov,
  • Nadiia Reznik

摘要

The implementation of stable micro-EHL lubrication of friction bearing assemblies according to the results of mathematical modeling are achieved due to the increase in the thickness of the lubricating layer according to its distribution in the central and minimum contact zones, taking into account the change in the ellipticity of the contact shape under the dominant influence of the rolling speed and dynamic viscosity of the lubricant. Empirical equations were established based on the results of modeling of the estimation of the minimum thickness hmin at the exit from the contact and the thickness of the lubricating layer in the central micro-EHL zone of the contact h0, as a function of dimensionless variable parameters: speed U, load W, materials G and the ellipticity parameter k, which are recorded in dimensional coordinates (μm) in the form: \({\text{h}}_{\text{min}}=3.37\cdot {\text{U}}^{0.67}\cdot {\text{W}}^{-0.076}\cdot {\text{G}}^{0.48}\cdot \left(1-{\text{e}}^{-0.59\text{k}}\right)\cdot {\text{R}}_{\text{x}};\) \({\text{h}}_{0}=2.43\cdot {\text{U}}^{0.66}\cdot {\text{W}}^{-0.059}\cdot {\text{G}}^{0.55}\cdot \left(1-\text{0,65}\cdot {\text{e}}^{-0.49\text{k}}\right)\cdot {\text{R}}_{\text{x}},\) made taking into account the change in the type of lubricant and the ellipticity of the contact shape.