Three triangular friction block configurations are commonly employed in high-speed train brake systems, namely, unperforated, perforated configuration with one circular hole, and perforated with three circular holes. In this study, we adopted these friction block types to investigate the effect of perforated friction block configurations on the brake performance of high-speed trains based on a self-developed brake test rig. The results indicate the significant impact of the number of the holes on the wear behavior, temperature distribution, and vibration characteristics of the brake interface. The friction surface of the unperforated block is covered by wear debris, while the perforated blocks produce less wear debris. Furthermore, the one-hole block exhibits a more uniform temperature distribution and better vibration behavior than that with three holes. The friction brake is a dynamic process, during which separation and attachment between the pad and disc alternatively occur, and the perforated structure on the friction block can both trap and expel the wear debris.

高速列车制动系统常用三种三角形摩擦块结构，即不穿孔、一圆孔穿孔结构、三圆孔穿孔结构。在本研究中，我们采用这些摩擦块类型，基于自主开发的制动试验台，研究了穿孔摩擦块配置对高速列车制动性能的影响。结果表明，孔的数量对制动器界面的磨损行为、温度分布和振动特性有显着影响。未穿孔块的摩擦表面被磨损碎片覆盖，而穿孔块产生较少的磨损碎片。此外，一孔块比三孔块表现出更均匀的温度分布和更好的振动性能。摩擦制动是一个动态过程，在此过程中，衬块和制动盘之间交替发生分离和附着，摩擦块上的穿孔结构既能捕获又能排出磨屑。