Experimental Study of the Variation of Friction Vibration in the Running-in Process with Different Sliding Velocity

Abstract

The variation of friction vibration in the running-in process with different sliding velocity was studied. Experiment shows that friction vibration varies with the change of sliding velocity. Friction vibration gradually increases in the whole running-in process under 300r/min, is increasing then smooth and stable fluctuant under 400r/min and 500r/min, is growing larger then fluctuant to stable under 600r/min and the inflection point of 400r/min, 500r/min and 600r/min are 50min, 40min and 30min, respectively. However, friction vibration is least under 400r/min, but not under 300r/min, and largest under highest sliding velocity 600r/min. Therefore, sliding velocity affects the running-in process and friction vibration could be used to monitor and identify the surface asperity contact of worn surface when sliding velocity changes.