Tire Coefficients of Friction (Mu)

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SUMMARY

The discussion centers on the friction coefficients of tires, specifically for braking problems. A general range of friction coefficients for pneumatic tires is suggested, with a common assumption of 0.9 for calculations. However, it is emphasized that the coefficient varies significantly based on factors such as load, tire pressure, temperature, surface conditions, and tread design. For accurate results, users must specify the conditions under which braking occurs.

PREREQUISITES
  • Understanding of pneumatic tire mechanics
  • Knowledge of friction coefficient principles
  • Familiarity with factors affecting tire performance
  • Basic grasp of braking dynamics
NEXT STEPS
  • Research the impact of tire pressure on friction coefficients
  • Explore the relationship between surface conditions and tire grip
  • Learn about different tire tread designs and their effects on performance
  • Investigate braking dynamics in various environmental conditions
USEFUL FOR

Automotive engineers, tire manufacturers, and anyone involved in vehicle dynamics or performance optimization will benefit from this discussion.

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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