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+-->//(Power Screws) Example 6.1
+
+-->//Number of threads n
+
+-->n = 2
+ n =
+
+ 2.
+
+-->//Load to be raised W (kN)
+
+-->W = 300
+ W =
+
+ 300.
+
+-->//Nominal diameter of the screw d (mm)
+
+-->d = 100
+ d =
+
+ 100.
+
+-->//Pitch of the screw p (mm)
+
+-->p = 12
+ p =
+
+ 12.
+
+-->//Coefficient of friction at the screw threads mu
+
+-->mu = 0.15
+ mu =
+
+ 0.15
+
+-->//For ISO Metric Trapezoidal threads theta (degree)
+
+-->theta = 15
+ theta =
+
+ 15.
+
+-->//Neglect collar friction
+
+
+Torque required to raise the load(Mt) = 3378.159205 N-m
+
+Torque required to lower the load(Ml) = 1030.685630 N-m
+
+Efficiency of screw(eta) = 33.921302 percent
+ \ No newline at end of file