Analytical sensitivity of acoustic power radiated from plates

R. R. Salagame, Ashok D. Belegundu, G. H. Koopmann

    Research output: Contribution to journalArticle

    42 Citations (Scopus)

    Abstract

    A general formulation to obtain the analytical expressions for the sensitivity of the acoustic power radiated by a vibrating structure to one of its design variables is described. The formulation, which is based on finite elements, is applied to both single frequency and broad band harmonic excitation of plates. The sensitivity coefficients indicate the effect of changing various design or modeling parameters on the acoustic power and can be used to optimize the structure for minimum sound radiation. Analytical sensitivity estimates are compared with finite difference values. Results show that analytical sensitivity analysis is important from both computational time and accuracy points of view.

    Original languageEnglish (US)
    Pages (from-to)43-48
    Number of pages6
    JournalJournal of Vibration and Acoustics, Transactions of the ASME
    Volume117
    Issue number1
    DOIs
    StatePublished - Jan 1 1995

    Fingerprint

    Acoustics
    acoustics
    sensitivity
    Sensitivity analysis
    harmonic excitation
    formulations
    Acoustic waves
    sensitivity analysis
    Radiation
    broadband
    radiation
    coefficients
    estimates

    All Science Journal Classification (ASJC) codes

    • Mechanics of Materials
    • Acoustics and Ultrasonics
    • Mechanical Engineering

    Cite this

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    abstract = "A general formulation to obtain the analytical expressions for the sensitivity of the acoustic power radiated by a vibrating structure to one of its design variables is described. The formulation, which is based on finite elements, is applied to both single frequency and broad band harmonic excitation of plates. The sensitivity coefficients indicate the effect of changing various design or modeling parameters on the acoustic power and can be used to optimize the structure for minimum sound radiation. Analytical sensitivity estimates are compared with finite difference values. Results show that analytical sensitivity analysis is important from both computational time and accuracy points of view.",
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    Analytical sensitivity of acoustic power radiated from plates. / Salagame, R. R.; Belegundu, Ashok D.; Koopmann, G. H.

    In: Journal of Vibration and Acoustics, Transactions of the ASME, Vol. 117, No. 1, 01.01.1995, p. 43-48.

    Research output: Contribution to journalArticle

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