What is it about?

Magnetostrction casues electrcal machine core vibration hence noise. In some parts of cores, magnetisation occurs at angles to easy directions of magnetisation. This paper showes that the highest magnetostrction still occurs along the,easy directions Experimental findings are backed up by a simple magnetic domain model

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Why is it important?

Magnetostrction characteresitics of anistotropic soft magnetic materials such as grain oriented silicon iron are often presented in terms of magnetostricion versus field or flux desnity magnetised at angles to the easy direction. This paper shows that the more relevant parameter is the resulting magnetostriction along the easy direction which is always highest.

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This page is a summary of: Magnetostriction in grain-oriented electrical steels under AC magnetisation at angles to the rolling direction , IET Electric Power Applications, November 2016, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-epa.2016.0170.
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