Torque Amplification: Is It Over Unity?

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SUMMARY

Torque amplification involves multiplying torque without altering input speed, but it does not result in an over unity machine. The relationship between power, torque, and RPM is defined by the equation P=T*theta, indicating that if power remains constant, torque decreases as RPM increases. Torque amplifiers, which utilize a motor's torque to drive the output shaft, are distinct from speed reduction gearboxes that achieve torque multiplication through speed reduction. Understanding these principles is crucial for accurate application in mechanical systems.

PREREQUISITES
  • Understanding of torque and power relationships in mechanical systems
  • Familiarity with the equation P=T*theta
  • Knowledge of torque amplifiers and their operational principles
  • Basic concepts of gear systems and their impact on torque
NEXT STEPS
  • Research mechanical torque amplifiers and their applications
  • Study the principles of power transmission in mechanical systems
  • Learn about the effects of gear ratios on torque and RPM
  • Explore advanced torque multiplication techniques in engineering
USEFUL FOR

Mechanical engineers, automotive engineers, and anyone involved in the design and analysis of torque amplification systems will benefit from this discussion.

Machinekraft
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In torque amplification, torque is multiplied without change in its input speed. Then this amplifier if coupled inbetween a motor and gene
rator would it not be a over unity machine?
 
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No, that is not correct,
P=T*theta
If power is constant then torque decreases as RPM increases.
Pay attention next time you ride a bike and change gears.

http://en.m.wikipedia.org/wiki/Torque
 
billy_joule said:
No, that is not correct,
P=T*theta
If power is constant then torque decreases as RPM increases.
Pay attention next time you ride a bike and change gears.

http://en.m.wikipedia.org/wiki/Torque
Thank you for your reply. What you have said is true for torque multiplication using speed reduction gear box. In case of torque amplification, torque alone is amplified without change in speed. Please look for mechanical torque amplifier in your search, you would understand my query. Thank you.
 
Thank you,
 

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