Magnetic force computation in permanent magnets using a local energy coordinate derivative method

Weinong Fu, P. Zhou, D. Lin, S. Stanton, Z. J. Cendes

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)


The definition of energy/coenergy in permanent magnets (PMs) is still in dispute when virtual work is used to compute magnetic forces using finite-element methods. There is also no current practical method for computing forces when PMs touch objects. These problems are addressed in this paper in terms of a new definition of energy/coenergy in PMs and by using shell elements. The results are verified by analytical computations.
Original languageEnglish
Pages (from-to)683-686
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number2 II
Publication statusPublished - 1 Mar 2004
Externally publishedYes


  • Electromagnetic fields
  • Electromagnetic forces
  • Finite-element method
  • Permanent magnets
  • Virtual work

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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