Commercial high-speed train friction blocks with a hole in the middle of the surface and perforated blocks filled with additive materials are introduced in drag brake experiments conducted on a customized small-scaled braking dynamometer. These additive materials include Cu-based powder metallurgy material, composite material, and a Mn–Cu damping alloy. The results indicate that the filling materials significantly influence the wear behavior of a braking interface and the characteristics of friction-induced vibration. Under the same experimental conditions, the perforated blocks filled with different materials produce different types of wear debris and exhibit different wear evolutions, markedly changing the wear debris distribution and surface morphology. These changes lead to variations in thermal distribution on the surfaces of both the friction block and brake disc. The study also shows that as a filling material, the Mn–Cu damping alloy can suppress the friction-induced vibration of the brake system, resulting in the lowest level of brake noise among all brake systems. However, the original friction block (i.e., the block without any filling material) can trap wear debris because of its perforated structure. The structure produces less friction-induced vibration and noise, compared with the block filled with powder metallurgy material. The noise performance of the composite material block is superior to the noise performance of the block without any filling material (i.e., the original block) and the block with powder metallurgy material but inferior to that of the block filled with the Mn–Cu damping alloy. Finite element analysis indicates that the properties of the filling materials exert no effect on the unstable vibration intensity of the brake system. Therefore, the wear debris behavior of the filling materials and the interface wear characteristics influence the friction-induced vibration and noise of the brake system.

在定制的小型制动测功机上进行的阻力制动实验中，引入了在表面中间带有孔的商业高速火车摩擦块和填充有添加剂材料的穿孔块。这些添加剂材料包括铜基粉末冶金材料，复合材料和Mn-Cu阻尼合金。结果表明，填充材料显着影响制动界面的磨损行为和摩擦引起的振动特性。在相同的实验条件下，填充有不同材料的多孔块会产生不同类型的磨损碎片，并表现出不同的磨损演变，从而显着改变磨损碎片的分布和表面形态。这些变化会导致摩擦块和制动盘表面的热分布发生变化。研究还表明，作为填充材料的Mn-Cu阻尼合金可以抑制摩擦引起的制动系统振动，从而使所有制动系统中的制动噪声最低。但是，原始的摩擦块（即没有任何填充材料的摩擦块）由于其穿孔结构而会捕获磨损碎屑。与填充粉末冶金材料的块相比，该结构产生的摩擦引起的振动和噪声更少。复合材料块的噪声性能优于没有填充材料的块的噪声性能（即，原始块）和粉末冶金材料块，但不及填充Mn-Cu阻尼合金的块。有限元分析表明，填充材料的性能对制动系统的不稳定振动强度没有影响。因此，填充材料的磨损碎片行为和界面磨损特性会影响制动系统的摩擦感应振动和噪声。