滑动摩擦温度场的非线性分析

利用三维经典热传导理论对环-面滑动摩擦副温度分布模型进行研究,以紫铜和铸铁为例,在ANSYS中模拟分析其摩擦生热过程,求解温度瞬态分布及接触区温度的变化趋势,并与相同条件下的实验数据进行对比。结果表明:建立的有限元模型能够较好地模拟滑动摩擦生热过程;材料的密度、比热容及导热率对摩擦温度场均存在一定影响,对于密度和比热容相近的紫铜和铸铁2种试样,前者由于导热率高,温度扩散迅速,温度分布梯度明显小于后者。

Nonlinear Analysis of Temperature Field of Sliding Friction

The temperature distribution model of ring-surface sliding friction pair was studied by the classical heat transfer theory.The friction heat generation process of red copper and cast iron was simulated in ANSYS,the calculated transient temperature distribution and the temperature change tendency in contact zone were compared with experimental data under the same conditions.The results show that the finite element model can simulate the heat generation process of sliding friction pair;material density,heat c...