Automotive Tire Coefficients of Friction (Mu)

AI Thread Summary
The discussion centers on the varying coefficients of friction for tires, which can significantly differ based on factors like tire type, load, pressure, temperature, and surface conditions. A general friction coefficient of around 0.9 is suggested as a reasonable assumption for calculations. However, it's emphasized that specific conditions of braking must be considered for accurate results. The variability in tire performance highlights the complexity of tire friction in practical applications. Understanding these factors is crucial for solving braking problems effectively.
stimulisRK
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Do any of you know just a general range of friction coefficients for tires? I'm working out some braking problems, but can't really find anything searching online.
 
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If this is for a thought/textbook excericse, you may as well just assume something. 0.9 seems sensible.
Pneumatic tyres are funny things. The friction coefficiecnt changes hugely between different types of tyres, and conditions. Load, tyre pressures, temperatures, surface conditions, tread, all make a large difference.

So either you'll have to be more specific with the conditions of braking, or just assume a figure.
 
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