Clutch torque capacity

Solves the exact and minimum integer number of active friction interfaces required to transmit a target torque.

Calculates simplified clutch torque from ring radii for the uniform wear or uniform pressure model.

Calculates effective clutch friction radius for the uniform wear or uniform pressure assumption.

Solves required clamp force for a target torque, friction coefficient, mean radius, and friction surface count.

Calculates average friction-surface pressure from clamp force and friction ring area; it is not maximum pressure or a pressure distribution.

Calculates friction ring area from outer and inner radius.