转向架表面摩擦风速对比分析 - 吹气对雪粒沉积的影响

Figure 9 shows the comparison of the friction velocity on the surface of steering gear 2 between the original model and two schemes under a blowing speed of 4 m/s. The blowing airflow changes the flow characteristics in the area of the steering gear, resulting in changes in the friction velocity on the surface of the steering gear. Table 3 provides the average increase in friction velocity on the surface of steering gear 2 components under the blowing airflow. It can be seen that the friction velocity of scheme 1 is larger than that of scheme 2. The friction velocity on each vibration damper is higher than that of the original model, which means that the snow particles on these components will bear greater shear forces, leading to unstable sedimentation of snow particles.