Shock and Vibration / 2018 / Article / Tab 2

Research Article

Discrete Element Simulation of Conical Pick’s Coal Cutting Process under Different Cutting Parameters

Table 2

The parameters of contact properties of coal and steel.

Materials parametersCoefficient of restitutionCoefficient of static frictionCoefficient of rolling friction

Coal to coal0.50.60.05
Coal to steel0.50.40.05
Steel to steel0.70.20.01