Finite elements solutions to magnetostriction. - II. Transient and non-linear modelling

Richard Weston, Tord Cedell

Research output: Contribution to journalArticlepeer-review

3 Citations (SciVal)

Abstract

This paper deals with transient finite elements modeling of magnetostriction. At first, a linear model is developed, which is verified by comparing the fourier transform of the step-response of the dynamical model to the, numerically differentiated, frequency response of the system. Then a non-linear relative permeability is assumed and at last, periodical collisions with a rigid wall are simulated. The time-integration method was chosen instead of the Newmark method, which is an unconditionally stable method. Further, the method is non-self starting, since the displacement accelerations are unknown initially. These are calculated from the Euler method, giving sufficient information to solve all unknowns in the dynamical simulations.
Original languageEnglish
Pages (from-to)197-204
JournalFinite Elements in Analysis and Design
Volume30
Issue number3
DOIs
Publication statusPublished - 1998

Subject classification (UKÄ)

  • Materials Engineering

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