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<p>This study introduces a methodology to determine innermost temperatures in disc brakes at varying distances from the mid-plane using Fourier and Laplace transforms. These mathematical tools were applied to assess the internal surface temperature during braking under varying pad stress and disc tension. Initial simulations identified the disk surface as the critical factor influencing temperature distribution. Experimental results showed that the interface temperature between pads and the disc ranged from 97.8 to 306.7&#xa0;°C as the rotational speed varied from 300 to 1100&#xa0;rpm and the applied load from 20 to 80 N. Additionally, CFD simulations validated airflow and convective heat transfer parameters, with interface temperatures predicted between 36.45 and 91.668&#xa0;°C. Among various designs analyzed, the tapered four-hole rotor exhibited the highest heat flux of 489.32 W/m°K and the most efficient heat transfer coefficient of 171,262.8 W/m<sup>2</sup>, maintaining the lowest observed temperature at 101.2&#xa0;°C. Mathematical modeling, CFD analysis, and experimental validation confirm that the proposed tapered rotor four-hole design offers optimal thermal dissipation.</p>

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Optimizing ventilated disk brake design for enhanced thermal performance: an analytical and experimental approach

  • 期刊论文

  • 发表日期：

    2025年3月3日

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  • Vikash K. Agrawal,
  • Lalit N. Patil,
  • Vikas S. Panwar,
  • Lalit K. Toke,
  • Srinivasa Rao Bogireddy,
  • Kaustabh Vijay Chavan,
  • U. D. Nimbalkar,
  • Mahesh M. Sonekar,
  • Narendra R. Bhople

摘要

This study introduces a methodology to determine innermost temperatures in disc brakes at varying distances from the mid-plane using Fourier and Laplace transforms. These mathematical tools were applied to assess the internal surface temperature during braking under varying pad stress and disc tension. Initial simulations identified the disk surface as the critical factor influencing temperature distribution. Experimental results showed that the interface temperature between pads and the disc ranged from 97.8 to 306.7 °C as the rotational speed varied from 300 to 1100 rpm and the applied load from 20 to 80 N. Additionally, CFD simulations validated airflow and convective heat transfer parameters, with interface temperatures predicted between 36.45 and 91.668 °C. Among various designs analyzed, the tapered four-hole rotor exhibited the highest heat flux of 489.32 W/m°K and the most efficient heat transfer coefficient of 171,262.8 W/m2, maintaining the lowest observed temperature at 101.2 °C. Mathematical modeling, CFD analysis, and experimental validation confirm that the proposed tapered rotor four-hole design offers optimal thermal dissipation.