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POWER TRANSMISSION

POWER TRANSMISSION. Objective:. To find the relationship between torque and the amount of power delivered to rotate a shaft. To design a shaft to carry a given power and/or torque. Power is rate of doing work. T = the applied torque (N-m) = angular velocity (rad/s)

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POWER TRANSMISSION

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  1. POWER TRANSMISSION Objective: • To find the relationship between torque and the amount of power delivered to rotate a shaft. • To design a shaft to carry a given power and/or torque.

  2. Power is rate of doing work • T = the applied torque (N-m) • = angular velocity (rad/s)  = angle of rotation but not angle of twist  (rad) P = power P = 2fT f in Hz or (1 cycle/s)

  3. Shaft Design Given: (T or P and all or alt) Find: d of the shaft. Example:

  4. Solution:

  5. Example: Solution:

  6. P P T T L L

  7. --T ++T +T+ -T- B A + + T T

  8. Example:

  9. Solution:

  10. Angle of Twist:

  11. Example:

  12. Internal Torque:

  13. Solution:

  14. The enD

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