(Solved): Q4: A multi-piate friction cition iransmits 50 kh at 4000 ifmin. The axial pressure betueen the plat ...

Q4: A multi-piate friction cition iransmits 50 kh at 4000 ifmin. The axial pressure betueen the plates is 280 kPa . The coenicient of friction is 0,32 . The internal radius of the friction plates is

of the emternal radius which is 85 mm . Assume uniform pressure and calculate the following: 1.1 The torque transmitied by the clutch 1.2 The axial force between the clutch plates 1.3 The number of contact pairs required [10] QUESTION 2 FIGURE 1 The layout of a band and block brake is shown in FIGURE 1. The brake drum has a diameter of 880 mm and there are 12 evenly-spaced brake blocks, each subtending an angle of 10 degrees at the centre of the brake drum. The coenticient of fiction between the blocks and the drum is 0,38 . Ceajculate the force Frequired at the end of the brake lever to absor 150 WM at 270 rimin.