Mistiming analyses of a bladed disk: Pole-zero and modal approaches

    Research output: Contribution to journalArticle

    Abstract

    This paper examines the fundamental aspects of amplitude amplification due to mistiming in a bladed disk. Both polezero and modal approaches are used to understand the effects of changes in mode shapes and the natural frequencies on the minimum and maximum values of peak amplitudes among all blades over all excitation frequencies. The nature of variation of this peak amplitude is studied, and algorithms are discussed to determine the statistics of the peak amplitude, maximum and minimum values of the peak amplitude, and corresponding mistuning patterns.

    Original languageEnglish (US)
    Pages (from-to)11-25
    Number of pages15
    JournalInternational Journal of Turbo and Jet Engines
    Volume27
    Issue number1
    StatePublished - Mar 1 2010

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    Poles and zeros
    Amplification
    Natural frequencies
    Statistics

    All Science Journal Classification (ASJC) codes

    • Aerospace Engineering

    Cite this

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    abstract = "This paper examines the fundamental aspects of amplitude amplification due to mistiming in a bladed disk. Both polezero and modal approaches are used to understand the effects of changes in mode shapes and the natural frequencies on the minimum and maximum values of peak amplitudes among all blades over all excitation frequencies. The nature of variation of this peak amplitude is studied, and algorithms are discussed to determine the statistics of the peak amplitude, maximum and minimum values of the peak amplitude, and corresponding mistuning patterns.",
    author = "Alok Sinha",
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    journal = "International Journal of Turbo and Jet Engines",
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    Mistiming analyses of a bladed disk : Pole-zero and modal approaches. / Sinha, Alok.

    In: International Journal of Turbo and Jet Engines, Vol. 27, No. 1, 01.03.2010, p. 11-25.

    Research output: Contribution to journalArticle

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