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//(Power Screws) Example 6.5
//Refer Fig.6.14 on page 199
//Number of starts on the screw n
n = 1
//Nominal diameter of the screw d (mm)
d = 80
//Pitch of the screw p (mm)
p = 10
//Maximum axial force to be exerted by the screw W (kN)
W = 10
//Mean radius of the friction collar rm (mm)
rm = 30
//Axial length of the nut L (mm)
L = 40
//Coefficient of friction at the threads and collar mu
mu = 0.12
//Mean diameter of the rim of the handwheel D (mm)
D = 500
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