Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices

Yasharth Bhartiya, Alok Sinha

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

    9 Citations (Scopus)

    Abstract

    This paper deals with further development of Modified Modal Domain Analysis (MMDA) , which is a breakthrough method in the reduced order modeling of a bladed rotor with geometric mistuning. The main focus of this paper is to show that deviations in mass and stiffness matrices due to mistuning ,estimated by Taylor series expansions in terms of independent Proper Orthogonal Decomposition variables representing geometric variations of blades , can be used for MMDA. This result has rendered Monte Carlo simulation of the response of a bladed rotor with geometric mistuning to be easy and computationally efficient.

    Original languageEnglish (US)
    Title of host publicationASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011
    Pages1201-1209
    Number of pages9
    Volume4
    EditionPARTS A AND B
    DOIs
    StatePublished - Dec 1 2011
    EventASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011 - Washington, DC, United States
    Duration: Aug 28 2011Aug 31 2011

    Other

    OtherASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011
    CountryUnited States
    CityWashington, DC
    Period8/28/118/31/11

    Fingerprint

    Reduced-order Modeling
    Stiffness matrix
    Stiffness Matrix
    Rotor
    Domain Analysis
    Modal Analysis
    Deviation
    Rotors
    Taylor series
    Taylor Series Expansion
    Orthogonal Decomposition
    Blade
    Decomposition
    Monte Carlo Simulation
    Monte Carlo simulation

    All Science Journal Classification (ASJC) codes

    • Modeling and Simulation
    • Mechanical Engineering
    • Computer Science Applications
    • Computer Graphics and Computer-Aided Design

    Cite this

    Bhartiya, Y., & Sinha, A. (2011). Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices. In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011 (PARTS A AND B ed., Vol. 4, pp. 1201-1209) https://doi.org/10.1115/DETC2011-47495
    Bhartiya, Yasharth ; Sinha, Alok. / Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices. ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011. Vol. 4 PARTS A AND B. ed. 2011. pp. 1201-1209
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    title = "Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices",
    abstract = "This paper deals with further development of Modified Modal Domain Analysis (MMDA) , which is a breakthrough method in the reduced order modeling of a bladed rotor with geometric mistuning. The main focus of this paper is to show that deviations in mass and stiffness matrices due to mistuning ,estimated by Taylor series expansions in terms of independent Proper Orthogonal Decomposition variables representing geometric variations of blades , can be used for MMDA. This result has rendered Monte Carlo simulation of the response of a bladed rotor with geometric mistuning to be easy and computationally efficient.",
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    Bhartiya, Y & Sinha, A 2011, Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices. in ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011. PARTS A AND B edn, vol. 4, pp. 1201-1209, ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011, Washington, DC, United States, 8/28/11. https://doi.org/10.1115/DETC2011-47495

    Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices. / Bhartiya, Yasharth; Sinha, Alok.

    ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011. Vol. 4 PARTS A AND B. ed. 2011. p. 1201-1209.

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

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    N2 - This paper deals with further development of Modified Modal Domain Analysis (MMDA) , which is a breakthrough method in the reduced order modeling of a bladed rotor with geometric mistuning. The main focus of this paper is to show that deviations in mass and stiffness matrices due to mistuning ,estimated by Taylor series expansions in terms of independent Proper Orthogonal Decomposition variables representing geometric variations of blades , can be used for MMDA. This result has rendered Monte Carlo simulation of the response of a bladed rotor with geometric mistuning to be easy and computationally efficient.

    AB - This paper deals with further development of Modified Modal Domain Analysis (MMDA) , which is a breakthrough method in the reduced order modeling of a bladed rotor with geometric mistuning. The main focus of this paper is to show that deviations in mass and stiffness matrices due to mistuning ,estimated by Taylor series expansions in terms of independent Proper Orthogonal Decomposition variables representing geometric variations of blades , can be used for MMDA. This result has rendered Monte Carlo simulation of the response of a bladed rotor with geometric mistuning to be easy and computationally efficient.

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    Bhartiya Y, Sinha A. Reduced order modeling of a bladed rotor with geometric mistuning via estimated deviations in mass and stiffness matrices. In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011. PARTS A AND B ed. Vol. 4. 2011. p. 1201-1209 https://doi.org/10.1115/DETC2011-47495