TORO II simulations of induction heating in ferromagnetic materials

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TORO II is a finite element computer program that is used in the simulation of electric and magnetic fields. This code, which was developed at Sandia National Laboratories, has been coupled with a finite element thermal code, COYOTE II, to predict temperature profiles in inductively heated parts. The development of an effective technique to account for the nonlinear behavior of the magnetic permeability in ferromagnetic parts is one of the more difficult aspects of solving induction heating problems. In the TORO II code, nonlinear, spatially varying magnetic permeability is approximated by an effective permeability on an element-by-element basis that effectively ... continued below

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9 p.

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Adkins, D.R.; Gartling, D.K.; Kelley, J.B. & Kahle, P.M. September 1, 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

TORO II is a finite element computer program that is used in the simulation of electric and magnetic fields. This code, which was developed at Sandia National Laboratories, has been coupled with a finite element thermal code, COYOTE II, to predict temperature profiles in inductively heated parts. The development of an effective technique to account for the nonlinear behavior of the magnetic permeability in ferromagnetic parts is one of the more difficult aspects of solving induction heating problems. In the TORO II code, nonlinear, spatially varying magnetic permeability is approximated by an effective permeability on an element-by-element basis that effectively provides the same energy deposition that is produced when the true permeability is used. This approximation has been found to give an accurate estimate of the volumetric heating distribution in the part, and predicted temperature distributions have been experimentally verified using a medium carbon steel and a 10kW industrial induction heating unit. Work on the model was funded through a Cooperative Research and Development Agreement (CRADA) between the Department of Energy and General Motors` Delphi Saginaw Steering Systems.

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9 p.

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OSTI as DE98000200

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  • 21. aging, compatibility, and stockpile stewardship conference, Albuquerque, NM (United States), 30 Sep - 2 Oct 1997

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  • Other: DE98000200
  • Report No.: SAND--97-0013C
  • Report No.: CONF-970982--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 642699
  • Archival Resource Key: ark:/67531/metadc697159

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  • September 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 14, 2016, 8:14 p.m.

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Adkins, D.R.; Gartling, D.K.; Kelley, J.B. & Kahle, P.M. TORO II simulations of induction heating in ferromagnetic materials, article, September 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc697159/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.