Analysis of Torque Transmission
In the figure, the frictional surface has an outer radius, r0, inner radius ri.
Assume an elemental surface area of thickness dr at a radius of r from the centre. If p is the pressure exerted while putting the two discs A and B together.
ro – radius of outer end of the clutch facing
ri – radius of inner edge of clutch facing
dr – thickness of the elemental element of clutch facing at a distance of r from the centre
Total axial force, df = p.dA
df = p.2πr.dr
F = 2π
The torque that can be transmitted
Case I : If pressure is constant i.e. p=k
Case II: if wear is constant i.e. p.r = constant
