Combination of multiple input models and experimental modal analysis for identification of structural noise generating mechanisms: With application to forge hammers

Martin Wesley Trethewey, H. A. Evensen, W. R. Sahpton

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    The article presents a procedure which combines multiple-input modeling techniques and experimental modal analysis to develop control strategies for structurally generated noise. Multiple input models are used to rank the noise contributions from individual coherent structural members. From this ranking, frequencies associated with important sound radiating modes can be distinguished from inefficient modes. An experimental modal analysis focusing on the significant radiating frequencies enables visualization of the important noise generating modes. The results of the modal analysis indicate that a longitudinal vibration mode is the dominant radiating mode of the ram. This result is corroborated by an experimental shrouding study.

    Original languageEnglish (US)
    Pages (from-to)89-102
    Number of pages14
    JournalNoise Control Engineering Journal
    Volume21
    Issue number3
    DOIs
    StatePublished - Jan 1 1983

    Fingerprint

    hammers
    Hammers
    Modal analysis
    Noise
    Identification (control systems)
    Theoretical Models
    Structural members
    structural members
    Vibration
    ram
    ranking
    Visualization
    Acoustic waves
    vibration mode
    acoustics

    All Science Journal Classification (ASJC) codes

    • Building and Construction
    • Automotive Engineering
    • Aerospace Engineering
    • Acoustics and Ultrasonics
    • Mechanical Engineering
    • Public Health, Environmental and Occupational Health
    • Industrial and Manufacturing Engineering

    Cite this

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    abstract = "The article presents a procedure which combines multiple-input modeling techniques and experimental modal analysis to develop control strategies for structurally generated noise. Multiple input models are used to rank the noise contributions from individual coherent structural members. From this ranking, frequencies associated with important sound radiating modes can be distinguished from inefficient modes. An experimental modal analysis focusing on the significant radiating frequencies enables visualization of the important noise generating modes. The results of the modal analysis indicate that a longitudinal vibration mode is the dominant radiating mode of the ram. This result is corroborated by an experimental shrouding study.",
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    N2 - The article presents a procedure which combines multiple-input modeling techniques and experimental modal analysis to develop control strategies for structurally generated noise. Multiple input models are used to rank the noise contributions from individual coherent structural members. From this ranking, frequencies associated with important sound radiating modes can be distinguished from inefficient modes. An experimental modal analysis focusing on the significant radiating frequencies enables visualization of the important noise generating modes. The results of the modal analysis indicate that a longitudinal vibration mode is the dominant radiating mode of the ram. This result is corroborated by an experimental shrouding study.

    AB - The article presents a procedure which combines multiple-input modeling techniques and experimental modal analysis to develop control strategies for structurally generated noise. Multiple input models are used to rank the noise contributions from individual coherent structural members. From this ranking, frequencies associated with important sound radiating modes can be distinguished from inefficient modes. An experimental modal analysis focusing on the significant radiating frequencies enables visualization of the important noise generating modes. The results of the modal analysis indicate that a longitudinal vibration mode is the dominant radiating mode of the ram. This result is corroborated by an experimental shrouding study.

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