Calculating the film thickness for the rapeseed oil in order to evaluate functioning regime

IOP Conference Series: Materials Science and Engineering(2022)

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摘要
The lubricating film, generated between two surfaces in relative motion, may have theoretical thicknesses between 10-10 m and 10-5 m. This paper presents a model for calculating the minimum film thickness depending on load, sliding speed and temperature for rapeseed oil working as lubricant in a point contact and a method of designing maps of lubrication regimes for a punctual contact. The results are useful in introducing this vegetal oil in actual applications. data for viscosity-temperature dependence of the rapeseed oil are taken from literature and for the same regime parameters tests are reported on the four-ball tester. The results pointed out the sensitivity of rapeseed oil to regime parameters (load and sliding speed), but also to temperature. Calculations are done for temperatures measured in actual functioning of the four-ball tester lubricated with rapeseed oil.
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关键词
rapeseed oil,film thickness
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