Question

N1 Gear wheel 1 N1 T1 Gear wheel 1 ĐỆMOTOR- R1 R1 Gear wheel 2 Gear wheel 2 R2 R2 Rd Rd T2 Cylindrical Drum Cylindrical Drum N2 N2 Brake shoe Brake shoe Front View (a) F-Braking Force Side View TE- Braking Force (b) Figure Q1 (not to scale) (b) The brake shoe shown is used to slow down the drive train by applying a breaking force F on the cylindrical surface of the drum. If the kinetic coefficient of friction between the brake shoe and the cylindrical surface of the drum is u, derive the expression that relates T1 and F (R1, R2 and Rd are the radii of gear wheel 1, gear wheel 2 and drum respectively). (5 Marks) (C) A DC motor having the parameters given in Table Q1 (a) is now coupled to the shaft of gear wheel 1 as shown in Figure Q1 (b). If the motor is operating at steady state with an input armature voltage of 220V and a rotational speed of 1200 rpm, find the value of the breaking force FN (Newton) that has been applied. The values of N1, N2, R1, R2, Rd and u are given in Table Q1 (b). (10 Marks)

Answer 1

Hey dear please provide the table (1) and (2) as mentioned in the question. Without tables the problem can't be solved. So I humbly request you to upload the table so that you can be helped with the solution. Thank you.