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制动器摩擦片材料热物性参数对其温度场的影响
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博士点联合基金项目(20123227110016 )


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    摘要:

    采用 Abaqus模拟盘式制动器制动过程的三维瞬态温度场,研究摩擦片材料的比热容和导热系数对其制动过程中温度分布的影响。结果表明:增大摩擦片材料导热系数可以降低摩擦片的轴向和径向温度梯度,但会增大摩擦面瞬时最高温度;增大摩擦片材料的比热容对降低摩擦面瞬时最高温度效果较好,但会增大摩擦材料轴向和径向的温度梯度;和导热系数相比,比热容变化对摩擦片瞬时最高温度的影响更为显著;同时增大比热容和导热系数可以达到既降低瞬时最高温度又减小轴向和径向温度梯度的作用。

    Abstract:

    The threedimensional transient temperature field for diskbrake were simulated using software ABAQUS to study the effects of specific heat capacity and thermal conductivity on the temperature distribution of the brake material during its braking process.The results show that the temperature gradient in the axial and radial direction of friction plate can be reduced,while the transient maximum temperature on the friction surface can be increased by increasing the thermal conductivity of friction plate.The transient maximum temperature of friction surface can be reduced,while the temperature gradient in the axial and radial direction of friction plate can be increased by increasing the specific heat capacity.Compared to the thermal conductivity,the specific heat capacity has more significant effect on the maximum transient temperature of friction plate.The maximum transient temperature and the axial and radial temperature gradient can be reduced by increasing the specific heat capacity and the thermal conductivity at the same time.

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姚冠新,牛华伟.制动器摩擦片材料热物性参数对其温度场的影响[J].润滑与密封,2015,40(10):61-64.
.[J]. Lubrication Engineering,2015,40(10):61-64.

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  • 在线发布日期: 2016-01-08
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