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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2019> 28(3): 549-560
Tianhong Luo, Zhongtao Li, Fuying Li. Drag Characteristics Prediction for Wet Multi-Disk Brakes[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(3): 549-560. doi: 10.15918/j.jbit1004-0579.18041
Citation: Tianhong Luo, Zhongtao Li, Fuying Li. Drag Characteristics Prediction for Wet Multi-Disk Brakes[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(3): 549-560.doi:10.15918/j.jbit1004-0579.18041
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Drag Characteristics Prediction for Wet Multi-Disk Brakes

doi:10.15918/j.jbit1004-0579.18041
  • 1.

    School of Mechanotronics & Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China;Chongqing University of Arts and Sciences, School of Mechanical & Electrical Engineering, Chongqing 402160, China

  • 2.

    School of Mechanotronics & Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China

  • 3.

    Operation Company of Guiyang Urban Metro Co. Ltd., Guiyang 550081, China

  • Received Date:2018-04-09
    Abstract
  • To improve the characteristics of wet multi-disc brakes (WMDBs), the WMDBs of the drive axles of mining trucks were studied. A model was established to predict the phenomenon of drag characteristics during wet brake non-engagement by considering the combined effect of surface grooves, film shrinkage, and laminar Navier-Stokes (N-S) equations. The model was used to study drag torque and temperature variation of the wet brakes for different volume flows, dynamic viscosities, and friction pair clearances. The simulation results indicated that the peak torque decreased when the clearance of the friction pair increased. Additionally, the peak torque increased when the volume flow increased and when the cooling liquid dynamic viscosity increased. The model was more accurate than a traditional forecasting system when considering the role of surface grooves and oil film shrinkage in actual working conditions.
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    • References (15)
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