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I need to calculate the force applied within a clutch pack by an expanding disk. Can you guys tell me if there is anyway to do this? I am working to find the torque capacity of a centrifugal clutch using the equation:

Torque Capacity = 2/3 * COF * n * F * Radius Gyration

where COF = coefficient of friction of clutch

n = number of friction surfaces

F = force applied (Applied by the expanding disk)

This clutch I am dealing with contains an expansion disk. The expansion disk has weighted shoes placed on ramps inside it and the weighted shoes are held in by springs which provide a tension of 80 Newtons. Once the clutch rotates at a certain speed, due to the centrifugal force the shoes start sliding up the ramp acting against the spring tension. The weighted shoes are tapered which means as they slide up the disk expands. Now because I know the spring tension I know how much force is experienced by the weighted shoes. If there are six of these around the whole expansion disk, is there anyway I can get an estimate of the force applied to the whole clutch pack? Please see the images I have attached for more detail about the mechanism (Fig1) and the clutch pack (Fig2). Will I be right in assuming since there are six of these around the disk then 80*6 = 480 Newtons is the total force applied to the clutch pack?

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# Calculating force applied from an expanding disk

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