Optimization of ventilated brake disc rotor geometry for enhanced structural characteristics

• Main Authors: Indira Roy, Bharatish A
• Format: Article
• Language: English
• Published: JVE International 2020-09-01
• Series: Journal of Measurements in Engineering
• Subjects: structural analysis; response surface methodology; ventilated brake disc; regression analysis
• Online Access: https://www.jvejournals.com/article/21399
• ISSN: 2335-2124; 2424-4635

This paper focuses on analyzing the effect of geometrical parameters on structural performance of the ventilated brake disc. Multi-objective optimization through response surface methodology was deployed for improving the structural performance of ventilated brake discs. Simulation runs were designed based on central composite design technique. The second order regression models correlating the geometry parameters with maximum deformation and equivalent stress were developed. ANOVA was performed to test the significance of disc geometry parameters. The deformation and equivalent stress were influenced by flange outer peripheral radius. While the spigot radius had a significant effect on the deformation but not on equivalent stress. Also, the mounting surface radius influenced the equivalent stress developed on the ventilated brake disc rotor. The multi-objective optimization of geometrical characteristics for minimum deformation (4.2332 µm) and minimum equivalent stress (4.00989 MPa) yielded significant reduction in total deformation and equivalent stress i.e., 10.28 % and 9.12 % respectively at optimal levels of geometrical parameters.