FEA Simulations of Magnets with Grain Oriented Steel

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One of the potential successors of the Large Hadron Collider is a Muon Col- lider. Muons are short-lived particles, which therefore require fast acceleration. One potential avenue is a very fast cycling cyclotron, where the bending is sup- plied by a combination of fixed-field superconducting magnets and fast ramping normal conducting iron-cored coils. Due to the high ramping rate (around 1 kHz) eddy current and hysteresis losses are a concern. One way to overcome these is by using grain-oriented soft-iron, which promises superior magnetic properties in the direction of the grains. This note summarizes efforts to include the anisotropic material ... continued below

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H., Witte August 6, 2012.

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One of the potential successors of the Large Hadron Collider is a Muon Col- lider. Muons are short-lived particles, which therefore require fast acceleration. One potential avenue is a very fast cycling cyclotron, where the bending is sup- plied by a combination of fixed-field superconducting magnets and fast ramping normal conducting iron-cored coils. Due to the high ramping rate (around 1 kHz) eddy current and hysteresis losses are a concern. One way to overcome these is by using grain-oriented soft-iron, which promises superior magnetic properties in the direction of the grains. This note summarizes efforts to include the anisotropic material properties of grain-oriented steel in finite element analysis to predict the behaviour of the dipole magnets for this accelerator. It was found that including anisotropic material properties has a detrimental effect on model convergence. During this study it was not possible to include grain oriented steel with an accuracy necessary to study the field quality of a dipole magnet.

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  • Report No.: BNL--98381-2012-IR
  • Grant Number: DE-AC02-98CH10886
  • DOI: 10.2172/1056411 | External Link
  • Office of Scientific & Technical Information Report Number: 1056411
  • Archival Resource Key: ark:/67531/metadc842836

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  • August 6, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • July 21, 2016, 6:53 p.m.

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H., Witte. FEA Simulations of Magnets with Grain Oriented Steel, report, August 6, 2012; United States. (digital.library.unt.edu/ark:/67531/metadc842836/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.