【摘要】 为探究三体颗粒对轮胎材料-硬质路面制动摩擦力时变特性的影响，设计了具有弹簧-金属滑块-橡胶传送带结构的三体摩擦试验机，分析不同载荷与速度下滑块-传送带之间摩擦力的时域与频域特征。结果表明：摩擦力在传送带速度较大时稳定性更好。低速低载荷时，三体颗粒介入会导致摩擦力信号频域分布在低频区，受颗粒影响的滑块在摩擦行为后，表面粗糙度明显增大。该研究可为三体颗粒影响下的轮胎-路面制动力预测提供参考。更多还原

【Abstract】 In order to explore the effects of three-body particles on the time-varying characteristics of braking friction between tire materials and hard road surfaces, a three-body friction testing machine with a spring-metal slider-rubber conveyor belt structure was designed to analyze the time and frequency domain characteristics of friction between slider and conveyor belt under different loads and speeds. Results show that friction is more stable at higher belt speed. At low speed and low load, the intervention of three-body particles will cause the friction signal frequency domain to be distributed in the low frequency region, and the surface roughness of the slider affected by the particles will increase significantly after the friction behavior. This study can provide reference for tire-road braking force prediction under the influence of three-body particles.更多还原