A 6V DC motor has a stall torque: Tst = 0.4 Nm and no-load speed: WNL = 573 RPM. ASsuming zero losses, specify (with proper units with each numerical answer): 1. the torque at maximum power for driving a mechanical load 2. the rotational speed (in RPM) for producing maximum power to drive a load 3. the maximum power (in watts) that is available to drive a mechanical load 4. the gear ratio that is required to most effectively drive a torque load of Tload = 0.6 Nm 5. the rotational speed (in RPM) of the output shaft of the gear box under the conditions of #3 and #4 6. the linear speed (in inch/sec) given the shaft (from #5) drives a 6 inch diameter wheel

A 6V DC motor has a stall torque: Tst = 0.4 Nm and no-load speed: WNL = 573 RPM. ASsuming zero losses, specify (with proper units with each numerical answer): 1. the torque at maximum power for driving a mechanical load 2. the rotational speed (in RPM) for producing maximum power to drive a load 3. the maximum power (in watts) that is available to drive a mechanical load 4. the gear ratio that is required to most effectively drive a torque load of Tload = 0.6 Nm 5. the rotational speed (in RPM) of the output shaft of the gear box under the conditions of #3 and #4 6. the linear speed (in inch/sec) given the shaft (from #5) drives a 6 inch diameter wheel

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.

Question

A 6V DC motor has a stall torque: Tst 0.4 Nm and no-load speed: WNL = 573 RPM. Assuming
zero losses, specify (with proper units with each numerical answer):
1. the torque at maximum power for driving a mechanical load
2. the rotational speed (in RPM) for producing maximum power to drive a load
3. the maximum power (in watts) that is available to drive a mechanical load
4. the gear ratio that is required to most effectively drive a torque load of Tioad = 0.6 Nm
5. the rotational speed (in RPM) of the output shaft of the gear box under the conditions of # 3
and #4
6. the linear speed (in inch/sec) given the shaft (from #5) drives a 6 inch diameter wheel

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