YAO Yuan, ZHANG Hong-jun, LIU Jin-hua. Effect of braking heat on axle-pan conjunction for high-speed locomotive[J]. Journal of Traffic and Transportation Engineering, 2008, 8(1): 10-14.
Citation: YAO Yuan, ZHANG Hong-jun, LIU Jin-hua. Effect of braking heat on axle-pan conjunction for high-speed locomotive[J]. Journal of Traffic and Transportation Engineering, 2008, 8(1): 10-14.

Effect of braking heat on axle-pan conjunction for high-speed locomotive

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  • Author Bio:

    Yao Yuan(1983-), male, doctoral student, + 86-28-87600661, yyuan8848@163.com

    Zhang Hong-jun(1950-), male, professor, + 86-28-87600661, zhj028@126.com

  • Received Date: 2007-05-27
  • Publish Date: 2008-02-25
  • A heat transfer model of axle-pan brake device for high-speed locomotive was put forward by using ANSYS, contact thermal resistance and the coefficients of heat conductivity in gap and face were computed, the temperature field property of the device was studied, and the effect of braking heat on the interference fit of the device was analyzed. Computation result shows that the rational gap between brake hub and out hollow axle is helpful to increase the thermal resistance and reduce the temperature effect, its recommending value is within 0.5-1.5 mm; average contact pressure on interference fit face decreases by 5.9%-6.6% at the end of braking when the thickness of brake hub is rational, which may decrease the heat effect, and its recommending value is 8 mm.

     

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