Boundary Lubricating in Low-Pressure Application
Boundary Lubricating in Low-Pressure Application
(OP)
Hi,
I'm trying to find theoretical documentation or insight relating to boundary lubrication in a low-pressure application. I'm trying to model the static friction in a system consisting of metal-to-metal contact, wetted by a (somewhat viscous) fluid (sorry I can't disclose the specifics).
The relative speeds of the two metals are not high enough to generate full lubrication.
Thanks!
(First post, I hope to be able to contribute soon!)
I'm trying to find theoretical documentation or insight relating to boundary lubrication in a low-pressure application. I'm trying to model the static friction in a system consisting of metal-to-metal contact, wetted by a (somewhat viscous) fluid (sorry I can't disclose the specifics).
The relative speeds of the two metals are not high enough to generate full lubrication.
Thanks!
(First post, I hope to be able to contribute soon!)





RE: Boundary Lubricating in Low-Pressure Application
Good website on all things tribological:
http://www.tribology-abc.com/default.htm
Google Books can be an amazing tool for quick searches on specific technical topics:
http://www.google.com/search?q=boundary+lubrication&tbm=bks&tbo=1#q=boundary+lubrication&hl=en&tbo=1&tbm=bks&ei=KiXGT_KBMIPo9AS9o5m5Bg&start=10&sa=N&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=dda2d38c14d9c2b3&biw=1238&bih=569
RE: Boundary Lubricating in Low-Pressure Application
What I guess I'm really searching for is a theoretical explanation as to what makes a wet surface slippery. I don't know if boundary lubrication is the proper term describing this regime of friction.
RE: Boundary Lubricating in Low-Pressure Application
You've left open the question of what constitutes "low pressure." 200 bar? 10 bar?
RE: Boundary Lubricating in Low-Pressure Application
I'm probably going to end up conducting a test isolating the static coefficient of friction of the contacting surfaces, it's just that I don't know what fundamentally causes wet surfaces to exhibit a lower static coefficient than dry ones, since there is no relative movement in the static scenario (or is there?).
Thanks for the help.
RE: Boundary Lubricating in Low-Pressure Application
Mike Halloran
Pembroke Pines, FL, USA