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A motor drives the winch drum through a reduction gear with a gear tooth ratio of 0.1 as shown in Figure Q1(d). The friction torque at winch shaft is 15 Nm and at the motor shaft is 10 Nm. At the motor speed of 1500 rpm, the winch complete one rotational cycle in 11 s.

A motor drives the winch drum through a reduction gear with a gear tooth ratio of 0.1 as shown in Figure Q1(d). The friction torque at winch shaft is 15 Nm and at the motor shaft is 10 Nm. At the motor speed of 1500 rpm, the winch complete one rotational cycle in 11 s.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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(d) A motor drives the winch drum through a reduction gear with a gear tooth ratio of 0.1 as shown in Figure Q1(d). The friction torque at winch shaft is 15 Nm and at the motor shaft is 10 Nm. At the motor speed of 1500 rpm, the winch complete one rotational cycle in 11 s. (i) Calculate the equivalent moment of inertia of the drive referred to the motor shaft. (ii) Examine the motor torque if the gear and winch has efficiency of 90% and 98%, respectively. (iii) Find total power of the motor. Winch 0.2 m radius Motor Jo = 0.5 kgm² Gear |Cable Jg = 0.15 kgm² at the motor speed Load 500 kg| Figure Q1(d)
Transcribed Image Text:(d) A motor drives the winch drum through a reduction gear with a gear tooth ratio of 0.1 as shown in Figure Q1(d). The friction torque at winch shaft is 15 Nm and at the motor shaft is 10 Nm. At the motor speed of 1500 rpm, the winch complete one rotational cycle in 11 s. (i) Calculate the equivalent moment of inertia of the drive referred to the motor shaft. (ii) Examine the motor torque if the gear and winch has efficiency of 90% and 98%, respectively. (iii) Find total power of the motor. Winch 0.2 m radius Motor Jo = 0.5 kgm² Gear |Cable Jg = 0.15 kgm² at the motor speed Load 500 kg| Figure Q1(d)
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