УЛУЧШЕНИЕ НАГРУЗОЧНЫХ ХАРАКТЕРИСТИК РАДИАЛЬНОЙ ОПОРЫ СО СЖИМАЕМЫМ СМАЗОЧНЫМ СЛОЕМ

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.