'adhesion' is..

[mudchicken]

IronKen:

Your cousins out here in hi-rails tend to go nowhere fast when it rains and they don't have the luxury of sand (as we watch the tachometer climb into the red zone)....

[Anonymous]

Wheel starts to slip when power applied to it is greater than it can pull or the wheel spins faster than the speed of train (does this make sense?)
That's loss of adhesion. In modern locos when wheelslip is detected, sand is applied automatically and power is reduced. Wheelslip usually is caused by wet rails (ice, rain, snow) or grade. but adding more weight to locomotive wiil help reduce adhesion. That's why cement is added to slugs -to improve adhesion.
I hope i did some good here.

[Anonymous]

Wheel starts to slip when power applied to it is greater than it can pull or the wheel spins faster than the speed of train (does this make sense?)
That's loss of adhesion. In modern locos when wheelslip is detected, sand is applied automatically and power is reduced. Wheelslip usually is caused by wet rails (ice, rain, snow) or grade. but adding more weight to locomotive wiil help reduce adhesion. That's why cement is added to slugs -to improve adhesion.
I hope i did some good here.

[Anonymous]

All I know is that when "adhesion," is lost and regained rapidly, I lose butt to seat adhesion and have to go back and pack iron and put my train back togeather. Adhesion good! Slippage bad!
Ken

[Anonymous]

All I know is that when "adhesion," is lost and regained rapidly, I lose butt to seat adhesion and have to go back and pack iron and put my train back togeather. Adhesion good! Slippage bad!
Ken

[cabforward]

who understands the adhesion of a loco to the railhead? the trains glossary says it is how well the loco grips the rail.. if a loco is designed correctly, does this change over time? if a rail is worn or has other problems, adhesion would change.. does adhesion change for keeps or can it 'come and go'?

industrial discussions are technical and mostly math formulas and physics of substances..

is a slipping wheel a sign of loss of adhesion?

besides the wheel, the weight on traction axles and the railhead, are there other aspects of adhesion to be considered (that can be understood by non-geniuses)?

[cabforward]

who understands the adhesion of a loco to the railhead? the trains glossary says it is how well the loco grips the rail.. if a loco is designed correctly, does this change over time? if a rail is worn or has other problems, adhesion would change.. does adhesion change for keeps or can it 'come and go'?

industrial discussions are technical and mostly math formulas and physics of substances..

is a slipping wheel a sign of loss of adhesion?

besides the wheel, the weight on traction axles and the railhead, are there other aspects of adhesion to be considered (that can be understood by non-geniuses)?