Force/Torque frequency proportional to current frequency

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SUMMARY

The discussion centers on the relationship between current frequency and the force generated by an AC current, specifically at 60Hz, as described by the Lorentz force equation. Participants question whether the force will always follow the same frequency as the current, particularly in cases of non-linear current flow. The mention of torque plots from Maxwell showing frequencies twice that of the input current raises concerns about potential rectification effects. Clarification on rectification and its implications for the observed torque plots is sought.

PREREQUISITES
  • Understanding of the Lorentz force equation
  • Familiarity with AC current principles, specifically at 60Hz
  • Knowledge of torque and its relationship to frequency in electrical systems
  • Basic concepts of rectification in electrical circuits
NEXT STEPS
  • Research the implications of rectification on AC current and torque generation
  • Explore the Lorentz force equation in the context of non-linear current flows
  • Investigate how Maxwell software models torque and frequency relationships
  • Review academic papers discussing torque plots and frequency analysis in electrical engineering
USEFUL FOR

Electrical engineers, physicists, and students studying electromagnetism or AC circuit design will benefit from this discussion, particularly those interested in the dynamics of force generation in relation to current frequency and rectification effects.

jcesar1029
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Lorentz force equation shows us that current is proportional to the force. Is it safe to assume that the force generated by an AC current at 60Hz will always have the same frequency? In other words, as the current increases and deceases (sinusoidal) the force will follow the same pattern at the same rate.

Would this be true if the current flow had a circular shape or any non-linear shape? The reason I ask is because Maxwell is giving me torque plots of frequencies twice the frequency of the input current. I find this odd.
 
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jcesar1029 said:
Lorentz force equation shows us that current is proportional to the force. Is it safe to assume that the force generated by an AC current at 60Hz will always have the same frequency? In other words, as the current increases and deceases (sinusoidal) the force will follow the same pattern at the same rate.

Would this be true if the current flow had a circular shape or any non-linear shape? The reason I ask is because Maxwell is giving me torque plots of frequencies twice the frequency of the input current. I find this odd.
Sounds like you are getting some rectification. Can you post some screen shots of your circuit/setup and the output from Maxwell? :smile:
 
berkeman said:
Sounds like you are getting some rectification. Can you post some screen shots of your circuit/setup and the output from Maxwell? :smile:

I can get some plots, can you explain a little bit more about what you refer to rectification? Papers that talk about this.
 

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