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HU Chang-bin, SHEN Jin-rong, CHEN You-jie. Temperature-rising laws of drum brake pad for truck on long downgrades[J]. Journal of Traffic and Transportation Engineering, 2009, 9(4): 49-55. doi: 10.19818/j.cnki.1671-1637.2009.04.010
Citation: HU Chang-bin, SHEN Jin-rong, CHEN You-jie. Temperature-rising laws of drum brake pad for truck on long downgrades[J]. Journal of Traffic and Transportation Engineering, 2009, 9(4): 49-55. doi: 10.19818/j.cnki.1671-1637.2009.04.010
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Temperature-rising laws of drum brake pad for truck on long downgrades

doi: 10.19818/j.cnki.1671-1637.2009.04.010

  • School of Civil Engineering, Fuzhou University, Fuzhou 350108, Fujian, China

More Information
  • Author Bio:

    HU Chang-bin(1974-), male, associate professor, PhD, +86-591-28306423, huchb@sohu.com

  • Received Date: 2009-03-11
  • Publish Date: 2009-08-25
    Abstract
  • The Zhongxinkeng and Xiaochiling Sections on Longyan G319 of Fujian Province were chosen as test sections, which are typical accident black spots.The test plan with concrete vehicle was designd on long downgrades.Based on the finite element analysis about test data, the temperature-rising laws of brake pad under different conditions, such as different gross masses of truck, brake modes, cooling methods, were analyzed.The result indicates that when truck runs downhill, the temperature of the pad increases wavelike with the implementation of braking behavior.The gross mass, the functional performance of brake pad and road linetype combination are the key influence factors on the temperature change of brake pad.The temperature is decreased by engine brake at low gear and sprayed brake effectively.The braking behavior is closely related with road conditions and linetype combination.The simulation result of temperature field with finite element method in simple state is quite different from the result of vehicle test.

     

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