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+
+//(Power Screws) Example 6.8
+//Refer Fig.6.15 on page 202
+//Maximum force exerted by the clamp W (kN)
+W = 5
+//Force exerted by the operator F (N)
+F = 250
+//Yield tensile strength of 45C8 Syt (N/mm2)
+Syt = 330
+//Outer diameter of the collar Do (mm)
+Do = 17
+//Inner diameter of the collar Di (mm)
+Di = 6
+//Factor of safety fs
+fs = 2
+//Number of starts of the screw n
+n = 2
+//Coefficient of friction at threads mu1
+mu1 = 0.15
+//Coefficient of friction at collar mu2
+mu2 = 0.17
+//Distance between the handwheel and the frame-top dist (mm)
+dist = 275
+//Assume screw pitch p (mm)
+p = 5
+//Unit bearing pressure Sb (N/mm2)
+Sb = 15