Quasi liquid layer-pressure asymmetrical model for the motion of of a curling rock on ice surface

In this paper, we present a new model based on Quasi liquid layer to explain why the direction of

lateral motion of the culing rock on ice surface is opposite to the other material surface. As

we know, under the action of inertial force, the pressure on the ice surface in front of curling is

greater than that on the back. So we assert that the firction coefficientin front of curling is lower

than that on the bank under different pressure. In order to explain the pressure impact on

friction coefficient, we qualitatively account for the reason why the coefficient of friction

increases under the pressure and approximately calculated the relationship between the

pressure and the thickness of the quasi_liquid layer on the ice surface. Then we calculate the

function expression between temperature , pressure and the firction coefficient by the function

between temperature and friction coefficient.