The effects of the flight height of the head, disk speed, pressure difference of the head/disk interface, and lubricant thickness on Zdol lubricant transfer were studied by using the coarse-grained molecular dynamics model. The results showed that with the increase of head flight height, lubricant transfer increased first and then increased rapidly. Lubricant transfer increased with an increase in disk speed. And compared with low flight height, the impact of disk speed on lubricant transfer at high flight height was more severe. Furthermore, lubricant transfer also increased with the increase of the pressure difference at the head/disk interface. And compared with the low flight height, the pressure difference had the most obvious effect on lubricant transfer at the high flight height. What’s more, lubricant transfer increased with the increase of lubricant thickness as well.

molecular dynamics  /  the hard/disk  /  Zdol lubricant  /  lubricant transfer