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Assignment Help - Determine the dynamic parameters of a friction clutch watch

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    So the question is:

    A single-flat-plate disc clutch has a driving surface with an inner diameter of 160 mm, outer diameter of 280 mm, and coefficient of friction of 0.32. Determine:

    a. The axial force and friction torque under uniform pressure of 84 kPa
    b. Maximum transmitted power at 36 rev/s under uniform pressure of 84 kPa
    c. The friction torque under uniform wear, assuming the same axial force as in part (a)
    d. Maximum transmitted power at 36 rev/s under uniform wear as above

    Ive basically fell at the first hurdle, im trying to caluclate the axial load but the answer i keep getting is massive, i dont know if im using the wrong equation.

    so far ive used:
    Ive been re-arranging to make R the subject but for both equations my answer is over 2 million!!

    Any help or advice would be greatly appreciated.

    Thanks

    Slater
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