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Abstract:
Based on
the ordered model suitable for TFL (This film Lubrication) with
lubricants composed of nermatic molecules, the basic lubrication
principles and characteristics in TFL are investigated by using
micropolar theories. In TFL where tribology properties varying from EHL
(elastohydrodynamic lubrication ) to BL (boundary lubrication), the
relationship between the film thickness and the variance of working
parameters such as velocities and outside loads does not accord with THL
theory well, However, the results deduced from micropolar theory can
accord with it well. The effects of existence of the ordered thin film
are in accord with the enhancement of lubricant viscosity through which
thicken the film and enlarge the carry-loading ability. The conservation
of angular momentum must be taken into account in TFL regime.
Key words:
Nematic
molecule Thin film lubrication Micropolar fluids
Lubricating characteristic
CLC No: TH117
国家自然科学基金资助项目. Received 20001206,
received in revised form 20010528
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