Wet multi-disc friction components heat dissipation capability and optimal oil supply under continuous braking condition
Wet multi-disc friction components heat dissipation capability and optimal oil supply under continuous braking condition
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DOI：
10.1108/ilt-06-2012-0060
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发表时间：
2014-10
影响因子：
1.6
通讯作者：
Yanzhong Wang;B. Wei
中科院分区：
文献类型：
--
作者：
Yanzhong Wang;B. Wei
目的：研究湿式多盘制动器在连续制动条件下的温度场和最佳供油情况。湿式多盘制动器的供油情况直接影响履带车辆的行驶性能和燃油经济性。流量过小会导致制动器温度升高和失灵，流量过大则会导致啮合缓慢，脱扣扭矩增大，传动效率会显着下降。研究得到了最佳供油量和最佳制动温度场。设计/方法/途径--本文利用CFX模型对制动器的散热能力和最佳供油进行了研究。模型的工作条件为连续制动，并考虑了润滑和冷却因素。结果表明，随着石油流量的增加，这种复杂的趋势与忽略沟槽影响的传统公式不一致。最优供油量的拟合曲线可以用来确定最佳供油量。
Purpose – The purpose of this study is to investigate wet multi-disc brake temperature field and optimal oil supply under continuous braking condition. The oil supply of wet multi-disc brake has a direct impact on the drivability and fuel economy for tracked vehicles. Too small flow will result in the higher temperature and failure of brake while excessive one will lead to slow engagement increasing disengaged torque and the transmission efficiency could decline notably. The optimal oil supply and brake temperature field were obtained in this research. Design/methodology/approach – This article investigated on the heat dissipation capability and optimal oil supply of the brake by the means of CFX model. The working condition was continuous braking and the lubricating and cooling factors were included in the model. Findings – That the complex trends with increased oil flow is inconsistent with the traditional formula in which the effects of grooves were neglected. The fitting curve of optimal oil supply ca...