Maximum instantaneous Torque, how?

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SUMMARY

The discussion focuses on calculating maximum instantaneous torque under load for selecting the appropriate shaft diameter. The user is advised to treat the shaft as a simply supported beam and utilize the area of a circle to determine the force exerted at the end of the shaft. Additionally, the calculation involves determining displacement using angular velocity and angular acceleration, followed by multiplying these values to find the torque. The suggestion of incorporating a higher factor of safety is also mentioned as an alternative approach.

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  • Familiarity with beam theory and simply supported beams
  • Basic geometry, specifically the area of a circle
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TheRB4891
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I have torque max and min on an output shaft without any load but need to calculate the maximum under load in order to choose correct shaft diameter, how do i go about this?

Alternatively, should i just include a higher factor of safety?

Thanks
 
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Your torque under load should be computed by finding the force given with a load. At the end of a shaft it could possibly be treated as a simply supported beam using the area of a circle. Then your displacement will be calculated using an angular velocity and angular acceleration. Once those two are found, displacement and force, multiply them together
 

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