(Seven points if only the correct rower is circled. Four points if two answer ar

Question

(Seven points if only the correct rower is circled. Four points if two answer are circled and one is correct.) A motor is connected to a load through a set of gears. The load is an inertial load with damping. The following is known about the load omega_L = 200 rad/s Steady state load speed g = r_m/r_L = 1/4 Great ratio B = 0.02 Nms Load damping factor What is speed of the motor? 200/1/4 200 1/4 200 root 1/4 200/(1/4)^2 What is the torque developed by the load? 0.02.200 0.02 200^2 200/0.02 200 root 200 In terms of the load torque, what is the torque (T_l) seen at the motor? T_L/(1/4)^2 T_L/1/4 T_L. 1/4 T_L.(1/4)^2

Explanation / Answer

a) Speed of the motor(input) = output speed * gear ratio.

= 200*(1/4).

Option (ii) is correct.

b) Torque developed by load = Input Torque x Gear Ratio x damping factor.

we know that input torque developed is zero. So option (i) is correct

c) option (ii) is correct according to (b)..

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