Additive Manufacturing of Silencers with Microperforates

Jukka Tanttari, Erin Komi, Antti Hynninen (Corresponding Author), Heikki Isomoisio, Seppo Uosukainen, Virpi Hankaniemi, Mikko Matalamäki

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    A microperforated panel (MPP) is generally defined as a perforated plate, in which the impedance of below one millimetre perforations is dominated by viscous losses. Using MPPs in duct and silencer applications, target is to maximize transmission loss (TL) by choosing proper surface impedance parameters. Additive manufacturing (AM) has recently reduced conventional design limitations and enabled fast prototyping of complex shaped structures. MPP-based model scale silencers can be printed within reasonable time, price, and accuracy. In this paper, design and validation of AM silencers with MPPs are studied. First, the theoretical background of MPP acoustics is summarized. Second, feasible parameters for a MPP absorber for a certain tuning frequency are sought numerically using acoustic finite element method (FEM). Third, several test MPPs are prototyped and their acoustic properties are measured. Finally, MPP silencers are simulated using different approaches and the results are compared against experiments.
    LanguageEnglish
    Article number7649756
    Number of pages13
    JournalAdvances in Acoustics and Vibration
    Volume2018
    DOIs
    Publication statusPublished - 14 Oct 2018
    MoE publication typeNot Eligible

    Fingerprint

    3D printers
    silencers
    massively parallel processors
    manufacturing
    Acoustics
    Perforated plates
    Acoustic properties
    Ducts
    Tuning
    Finite element method
    impedance
    perforated plates
    perforation
    acoustics
    acoustic properties
    transmission loss
    scale models
    ducts
    Experiments
    absorbers

    Keywords

    • micro-perforated
    • MPP
    • silencer
    • additive manufacturing
    • AM

    OKM Publication Types

    • A1 Refereed journal article

    OKM Open Access Status

    • 1 Open Access

    Cite this

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    title = "Additive Manufacturing of Silencers with Microperforates",
    abstract = "A microperforated panel (MPP) is generally defined as a perforated plate, in which the impedance of below one millimetre perforations is dominated by viscous losses. Using MPPs in duct and silencer applications, target is to maximize transmission loss (TL) by choosing proper surface impedance parameters. Additive manufacturing (AM) has recently reduced conventional design limitations and enabled fast prototyping of complex shaped structures. MPP-based model scale silencers can be printed within reasonable time, price, and accuracy. In this paper, design and validation of AM silencers with MPPs are studied. First, the theoretical background of MPP acoustics is summarized. Second, feasible parameters for a MPP absorber for a certain tuning frequency are sought numerically using acoustic finite element method (FEM). Third, several test MPPs are prototyped and their acoustic properties are measured. Finally, MPP silencers are simulated using different approaches and the results are compared against experiments.",
    keywords = "micro-perforated, MPP, silencer, additive manufacturing, AM",
    author = "Jukka Tanttari and Erin Komi and Antti Hynninen and Heikki Isomoisio and Seppo Uosukainen and Virpi Hankaniemi and Mikko Matalam{\"a}ki",
    year = "2018",
    month = "10",
    day = "14",
    doi = "https://doi.org/10.1155/2018/7649756",
    language = "English",
    volume = "2018",
    journal = "Advances in Acoustics and Vibration",
    issn = "1687-6261",
    publisher = "Hindawi Publishing Corporation",

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    Additive Manufacturing of Silencers with Microperforates. / Tanttari, Jukka; Komi, Erin; Hynninen, Antti (Corresponding Author); Isomoisio, Heikki; Uosukainen, Seppo; Hankaniemi, Virpi; Matalamäki, Mikko.

    In: Advances in Acoustics and Vibration, Vol. 2018, 7649756, 14.10.2018.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Additive Manufacturing of Silencers with Microperforates

    AU - Tanttari, Jukka

    AU - Komi, Erin

    AU - Hynninen, Antti

    AU - Isomoisio, Heikki

    AU - Uosukainen, Seppo

    AU - Hankaniemi, Virpi

    AU - Matalamäki, Mikko

    PY - 2018/10/14

    Y1 - 2018/10/14

    N2 - A microperforated panel (MPP) is generally defined as a perforated plate, in which the impedance of below one millimetre perforations is dominated by viscous losses. Using MPPs in duct and silencer applications, target is to maximize transmission loss (TL) by choosing proper surface impedance parameters. Additive manufacturing (AM) has recently reduced conventional design limitations and enabled fast prototyping of complex shaped structures. MPP-based model scale silencers can be printed within reasonable time, price, and accuracy. In this paper, design and validation of AM silencers with MPPs are studied. First, the theoretical background of MPP acoustics is summarized. Second, feasible parameters for a MPP absorber for a certain tuning frequency are sought numerically using acoustic finite element method (FEM). Third, several test MPPs are prototyped and their acoustic properties are measured. Finally, MPP silencers are simulated using different approaches and the results are compared against experiments.

    AB - A microperforated panel (MPP) is generally defined as a perforated plate, in which the impedance of below one millimetre perforations is dominated by viscous losses. Using MPPs in duct and silencer applications, target is to maximize transmission loss (TL) by choosing proper surface impedance parameters. Additive manufacturing (AM) has recently reduced conventional design limitations and enabled fast prototyping of complex shaped structures. MPP-based model scale silencers can be printed within reasonable time, price, and accuracy. In this paper, design and validation of AM silencers with MPPs are studied. First, the theoretical background of MPP acoustics is summarized. Second, feasible parameters for a MPP absorber for a certain tuning frequency are sought numerically using acoustic finite element method (FEM). Third, several test MPPs are prototyped and their acoustic properties are measured. Finally, MPP silencers are simulated using different approaches and the results are compared against experiments.

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    KW - MPP

    KW - silencer

    KW - additive manufacturing

    KW - AM

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    M3 - Article

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