Hi Thanks for the video, I dont' fully understand the X axis, what does ZN/P means in real terms? I can understand the plot agains individual componets, i.e. eitehr Viscoity, velocity or load but not sure what the ratio ZN/P signifies.
Good point - the ratio itself does not represent anything physical. It's more that the relationship is the same for increasing viscosity and speed, but the inverse relationship for load. Rather than making three separate graphs, we put them all on one axis.
so im so freaking confuse and frustrated, cuz i have this damn project about tribology , so high friction is because of high viscosity... and this could be because there is high protein concentration but is it because of this protein that leads to the fomation of lubricating film? (my sample is high and low protein emulsion) . I understand that lubricating film is high for hydrodynamic regime but im so cconfuse .... in my case is it bcuz of the protein there in the fomation of film ...im sooooo angry with this thing i cannot understand from other research papers or even in this video IDK zzzzz
Great question! Effectively what is happening is that the film thickness of the lubricant is increasing as you move from left to right on the graph. As the machine surfaces become separated by more and more lubricant, we require more and more energy to overcome the “internal friction” of the oil film.
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A great explanation. Certainly helped explain the likes of HTHS situation
Thanks for the support!
Hi, thanks. Excellent explanation, very clear and easy to follow
You are welcome!
Great video! Thanks for uploading
No worries Thom! Let us know if there's another topic you would be interested in.
Very Well Explained Rafe - Thanks !!
Thanks Ravi! I need to do a follow up because I feel like I've gotten better at these videos over the past 12 months.
@@LubricationExplained Great! Looking forward to it then!
Excellent info
Glad you think so!
thank you sir for such a informational video
Most welcome!
Great video! :)
Thanks!
Hi Thanks for the video, I dont' fully understand the X axis, what does ZN/P means in real terms? I can understand the plot agains individual componets, i.e. eitehr Viscoity, velocity or load but not sure what the ratio ZN/P signifies.
Good point - the ratio itself does not represent anything physical. It's more that the relationship is the same for increasing viscosity and speed, but the inverse relationship for load. Rather than making three separate graphs, we put them all on one axis.
so im so freaking confuse and frustrated, cuz i have this damn project about tribology , so high friction is because of high viscosity... and this could be because there is high protein concentration but is it because of this protein that leads to the fomation of lubricating film? (my sample is high and low protein emulsion) . I understand that lubricating film is high for hydrodynamic regime but im so cconfuse .... in my case is it bcuz of the protein there in the fomation of film ...im sooooo angry with this thing i cannot understand from other research papers or even in this video IDK zzzzz
Read anything you can get your hands by JERRY BYERS. HE is the world expert.
Why does the fricition rise agan when reaching the fully lubricated region?
Great question! Effectively what is happening is that the film thickness of the lubricant is increasing as you move from left to right on the graph. As the machine surfaces become separated by more and more lubricant, we require more and more energy to overcome the “internal friction” of the oil film.
@@LubricationExplained correct, thanks