Estimation of Optimal Values for Lumped Elements in a Finite Element - Lumped Parameter Model of a Loudspeaker

Daniel Gert Nielsen, Peter Risby Andersen, Jakob Søndergaard Jensen, Finn T. Agerkvist

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    Abstract

    Finite element methods are progressively being utilized to assist in the continuous development of loudspeakers. The core of this paper is the method of lumping certain parts of the finite element model, creating a significant reduction in the model complexity that allows for e.g. faster structural optimization. This is illustrated in the paper with a loudspeaker example where the electromagnetic parts are lumped as well as the spider. It is shown that the simplified model still matches the complex response of the full FE model at very high frequencies.
    Original languageEnglish
    Article number2050012
    JournalJournal of Computational Acoustics
    Volume28
    Issue number2
    Number of pages16
    ISSN0218-396X
    DOIs
    Publication statusPublished - 2020

    Keywords

    • Loudspeaker
    • Lumped model
    • Transducer

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