Initial Selection of Disc Brake Pads Material based on the Temperature Mode

Area of Science:

• Mechanical Engineering
• Tribology
• Computational Modeling

Background:

• Brake system performance is critical for vehicle safety.
• Understanding the complex interplay of friction, wear, and heat dynamics is essential for optimizing brake design.
• Existing models may not fully capture the coupled thermal and mechanical behaviors during braking.

Purpose of the Study:

• To develop a spatial computational model for motor vehicle disc brakes.
• To analyze the heat dynamics of friction and wear (HDFW) considering temperature-dependent properties.
• To evaluate the performance of different brake pad materials against cast-iron discs.

Main Methods:

• Developed a spatial computational model based on HDFW equations.
• Employed the finite element method (FEM) for numerical solutions.
• Simulated single braking events with six different brake pad materials.

Main Results:

• Quantified changes in braking time, friction coefficient, braking torque, velocity, contact temperature, and wear.
• Evaluated results for friction coefficient stabilization and minimization of temperature, wear, braking time, and pad mass.
• Identified key performance metrics for brake pad material selection.

Conclusions:

• The developed model effectively simulates disc brake behavior during braking.
• Recommendations are provided for selecting optimal brake pad materials for cast-iron discs.
• The study contributes to improved brake system design and material selection for enhanced performance and longevity.