Question

A mass of 500 kg is being lifted at uniform speed of 1.5 m/s by a winch driven by a motor
running at a speed of 1000 r/min. The moments of inertia of the motor and winch are 0.5 and
0.3 kgm2, respectively. In the absence of the mass, the motor develops a torque of 100 Nm at
a speed of 1000 r/min.
Calculate
a) the equivalent moment of inertia referred to the motor side;
b) the motor torque.

Answer 1

Explanation:

A weight of 500 kg is being lifted up at a uniform speed of 1.5 M/S by a winch driven by a motor running at a speed of 1000 rpm. The moments of inertia pf the motor and winch are 0.3 and 0.3 kg-m respectively. Calculate the motor torque and the equivalent moment of inertia referred to the motor shaft. In the absence of weight, motor develops a torque of 100 N-m when running at 1000 rpm.

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Answer 2

A weight of 500 kg is being lifted up at a uniform speed of 1.5m/s by a which by driven in a motor running at a speed og 1000 rpm . The moments of inerta of the motor and which are 0.3 and 0.3 kg-m2 respectively. In the absence of the weight, the motor develops a torque of 100 Nm at a speed of 1000r/min.

calculate the motor torque and the equivalent moments of inertia refered to the motor shaft.

Explanation: