Yevtushenko Aleksander, Kuciej Michal, Grzes Piotr, Wasilewski Piotr
Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering, Bialystok University of Technology (BUT), 45C Wiejska Street, 15-351 Bialystok, Poland.
Frimatrail Frenoplast S.A., 15 Watykańska Street, 05-200 Majdan, Poland.
Materials (Basel). 2021 Dec 16;14(24):7804. doi: 10.3390/ma14247804.
A new approach to numerical simulation using the finite element method (FEM) for the rotational motion of discs for railway vehicle disc brake systems was proposed. For this purpose, spatial models of transient heating due to the friction of such systems with solid and ventilated discs were developed. The performed calculations and the results obtained allowed justification of the possibility of simplifying the shape of the ventilated brake disc through elimination of ventilation channels. This contributes to a significant reduction in computational time, without compromising the accuracy of the results. The spatial and temporal temperature distributions in the ventilated and the solid disc of the same mass were analyzed. The share of energy dissipated due to convection and thermal radiation to the environment in relation to the total work done during a single braking was investigated. The maximum temperature values found as a result of computer simulations were consistent with the corresponding experimental results.
提出了一种采用有限元法（FEM）对铁路车辆盘式制动系统中圆盘旋转运动进行数值模拟的新方法。为此，建立了此类系统中实心盘和通风盘摩擦产生的瞬态热空间模型。所进行的计算和获得的结果证明了通过消除通风通道来简化通风制动盘形状的可能性。这有助于大幅减少计算时间，同时不影响结果的准确性。分析了相同质量的通风盘和实心盘中的空间和时间温度分布。研究了在单次制动过程中，与总功相关的因对流和向环境的热辐射而耗散的能量份额。计算机模拟得到的最高温度值与相应的实验结果一致。
