The effect of interfacial wear debris on the friction-induced stick-slip vibration

To address the influence of wear debris on friction-induced stick-slip vibration (FISSV), a method involving grooving the friction disc was proposed. FISSV simulation experiments were conducted using a test setup. A finite element model (FEM) was established for dynamic simulations. The results show that wear debris significantly influences FISSV. Debris involved in friction will result in significant abrasive wear. Extensive debris entering the interface causes the worn surface to have numerous small contact plateaus with lower contact stiffness, leading to pronounced FISSV. Conversely, the presence of larger contact plateaus on the worn surface increases contact stiffness, making the friction system less prone to generating FISSV. Filling groove with graphite effectively suppresses FISSV. Controlling debris flow is crucial for suppressing FISSV.