Computation of the optimal normal load of a friction damper under different types of excitation

D. Cha, Alok Sinha

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Citations (Scopus)

    Abstract

    In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.

    Original languageEnglish (US)
    Title of host publicationManufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
    PublisherAmerican Society of Mechanical Engineers (ASME)
    Volume4
    ISBN (Electronic)9780791878613
    DOIs
    StatePublished - Jan 1 1999
    EventASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999 - Indianapolis, United States
    Duration: Jun 7 1999Jun 10 1999

    Other

    OtherASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999
    CountryUnited States
    CityIndianapolis
    Period6/7/996/10/99

    Fingerprint

    White noise
    Friction
    Linearization
    Turbomachine blades
    Turbines

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

    Cite this

    Cha, D., & Sinha, A. (1999). Computation of the optimal normal load of a friction damper under different types of excitation. In Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General (Vol. 4). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/99-GT-413
    Cha, D. ; Sinha, Alok. / Computation of the optimal normal load of a friction damper under different types of excitation. Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. Vol. 4 American Society of Mechanical Engineers (ASME), 1999.
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    abstract = "In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.",
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    Cha, D & Sinha, A 1999, Computation of the optimal normal load of a friction damper under different types of excitation. in Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. vol. 4, American Society of Mechanical Engineers (ASME), ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999, Indianapolis, United States, 6/7/99. https://doi.org/10.1115/99-GT-413

    Computation of the optimal normal load of a friction damper under different types of excitation. / Cha, D.; Sinha, Alok.

    Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. Vol. 4 American Society of Mechanical Engineers (ASME), 1999.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    N2 - In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.

    AB - In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.

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    Cha D, Sinha A. Computation of the optimal normal load of a friction damper under different types of excitation. In Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. Vol. 4. American Society of Mechanical Engineers (ASME). 1999 https://doi.org/10.1115/99-GT-413