Saturation of Y-Shaped Iron with Permanent Magnet

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Homework Help Overview

The discussion revolves around the magnetic saturation of a Y-shaped iron structure when subjected to a permanent magnet. Participants are exploring the implications of magnetic flux distribution and saturation levels in the branches of the Y shape.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning whether the top ends of the Y will also reach saturation and how the number of branches affects saturation levels. There is a discussion about the implications of cross-sectional area on saturation and the interpretation of the H-B curve.

Discussion Status

Some participants have offered insights regarding the saturation levels in the branches and the relationship between cross-sectional area and magnetic flux density. Multiple interpretations of how saturation occurs in the structure are being explored.

Contextual Notes

There is an assumption that all legs of the Y have the same cross-sectional area, and the discussion includes considerations of how a yoke might influence the magnetic circuit.

samjesse
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Hi

If we have a Y shape iron and we put a Permanent Magnet N pole at the bottom leg of the Y in such that it will saturate it. would the top ends of the Y also be saturated. what if instead of 2 we have 20 branches where flux can go. what is the saturation will be like at one branch?

thx
 
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No the top ends of the "Y" won't saturate as they will each have only 1/2 of the saturation flux density.

BTW. Since you don't specify then I'll assume that all legs of the Y have the same cross sectional area. Note that typically the "Y" would be connected to some form of yoke to form a complete magnetic circuit.
 
uart said:
No the top ends of the "Y" won't saturate as they will each have only 1/2 of the saturation flux density.

BTW. Since you don't specify then I'll assume that all legs of the Y have the same cross sectional area. Note that typically the "Y" would be connected to some form of yoke to form a complete magnetic circuit.

Then, why the H-B curve does not take the cross sectional area in account?
 
OR should I take the value of B and half it to get the saturation in the the branches?
 

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