Friction Concepts in Braking Systems

Engineering Studies – P3 Braking Systems – Mechanical Analysis

This topic introduces the topic of friction and introduces the analysis of frictional forces. The key concepts include identifying both positive applications and negative effects of frictional forces.

Key Concepts

• The concept of static friction and the frictional force
• Calculating static friction force values
• Application where friction is:
  • beneficial
  • an inefficiency

Discussion Questions

1. Explain what is meant by the term ‘coefficient of friction’.
2. How is the ‘limiting friction’ force value defined?
3. Define the ‘angle of friction’.
4. What is the meaning of the term ‘normal’ force?
5. What is the difference between static and kinetic friction?
6. Describe example situations where friction needs to be maximized.
7. Describe example situations where friction needs to be minimized.