-->//(Brakes) Example 12.4
 
-->//Torque capacity of the block brake Mt (N-m)
 
-->Mt = 250
 Mt  =
 
    250.  
 
-->//Speed of the brake n (rpm)
 
-->n = 100
 n  =
 
    100.  
 
-->//Coefficient of friction mu
 
-->mu = 0.35
 mu  =
 
    0.35  
 
-->//Intensity of pressure between the block and the drum p (N/mm2)
 
-->p = 1
 p  =
 
    1.  
 
-->//Ratio of the length of the block to its width r
 
-->r = 2
 r  =
 
    2.  
 
-->//Distance of the actuating force from the block d1 (mm)
 
-->d1 = 300
 d1  =
 
    300.  
 
-->//Distance of the lever pivot from the block d2 (mm)
 
-->d2 = 200
 d2  =
 
    200.  
 
-->//Distance between the lever pivot from the contact area d3 (mm)
 
-->d3 = 50
 d3  =
 
    50.  
 
-->//Radius of the drum R (mm)
 
-->R = 200
 R  =
 
    200.  
 
-->//Final velocity of the brake drum v2 (m/s)
 
-->v2 = 0
 v2  =
 
    0.  
 

The brake is not self-locking

FOR CLOCKWISE ROTATION

Actuating force(Pc) = 1303.571429 N

Reaction at the hinge pin(Rc) = 2589.532008 N

FOR ANTICLOCKWISE ROTATION

Actuating force(Pcc) = 1553.571429 N

Reaction at the hinge pin(Rcc) = 2373.656978 N

Rate of heat generated(E) = 1308.996939 W

Width of the block(w) = 42.257713 or 45.000000 mm

Length of the block(l) = 90.000000 mm