IMPROVEMENT OF LOADCHARACTERISTICS OF A RADIAL BEARING WITH THE COMPRESSED LUBRICANT LAYER

Abstract

In article the task about improvement of tribological characteristics of lubricating liquid and
gas layers of various frictional units due to forcing of the environment in a layer by peristaltic action of opposite directional traveling waves of fluctuations is considered. The model of a current
of liquid in a gap with waveforming surfaces in the presence in it liquid with various size of content of gas and, including, pure gas and incompressible liquid is considered. As the main object
of a research the cylindrical layer is chosen. In this case it is possible to study separately a rigidity
and delivery characteristics of a standard selfcontained layer.
By drawing up mathematical model the main assumptions of the theory of hydrodynamic
lubricant are accepted, at the same time temperature effect and accounting of compressibility of lubricant is carried out by introduction to model of defining temperature and padding parameter of gas content. 

It is shown that action of traveling waves in a layer defines emergence of a radial and angular
rigidity which repeat similar dependences of the routine cylindrical vibrobearing layer with
the uniform vibration squeezing of the compressed lubricant. Additive rotation of the surfaces,
limiting a layer, with rather high angular velocity leads to emergence of developed hydrodynamic
effect, which in a combination with forcing of lubricant from action of a traveling wave leads
to emergence of combinational multiplicative effects. In particular, in a frequency range of
a traveling wave in which the maximum of the forced pressure is observed there is an essential
increase in a rigidity and bearing capacity of a lubricating layer. The similar multiplicative effect
arises from a combination of effect of forcing of lubricant and vibration squeezing of a layer, et al.