Forced response statistics of a bladed rotor with geometric mistuning

Vinod Vishwakarma; Alok Sinha

doi:10.2514/6.2014-0495

Forced response statistics of a bladed rotor with geometric mistuning

Vinod Vishwakarma
, Alok Sinha

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

Abstract

This paper deals with efficient computation of the statistics of the normalized peak maximum amplitude (npma) for a bladed rotor with geometric mistuning. The method is based on the high-fidelity reduced-order model, Modified Modal Domain Analysis (MMDA). It is shown that the statistical distributions of npma from random permutations of blades, which do not require any additional finite element sector analysis, are close to those from conventional Monte Carlo simulations in which coefficients of proper orthogonal decomposition features of geometric mistuning are randomly selected.

Original language	English (US)
DOIs	https://doi.org/10.2514/6.2014-0495
State	Published - 2014
Event	55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States Duration: Jan 13 2014 → Jan 17 2014

Other

Other	55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014
Country/Territory	United States
City	National Harbor, MD
Period	1/13/14 → 1/17/14

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Mechanics of Materials
Building and Construction
Architecture

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10.2514/6.2014-0495

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title = "Forced response statistics of a bladed rotor with geometric mistuning",

abstract = "This paper deals with efficient computation of the statistics of the normalized peak maximum amplitude (npma) for a bladed rotor with geometric mistuning. The method is based on the high-fidelity reduced-order model, Modified Modal Domain Analysis (MMDA). It is shown that the statistical distributions of npma from random permutations of blades, which do not require any additional finite element sector analysis, are close to those from conventional Monte Carlo simulations in which coefficients of proper orthogonal decomposition features of geometric mistuning are randomly selected.",

author = "Vinod Vishwakarma and Alok Sinha",

note = "Funding Information: This research has been supported by funds from the Air Force Research Laboratory (AFRL) and GUIde Consortium at Duke University, Durham, NC. The findings, opinions and recommendations expressed therein are those of authors and are not necessarily those of Duke University or the AFRL or the GUIde Consortium Members.; 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 ; Conference date: 13-01-2014 Through 17-01-2014",

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language = "English (US)",

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AU - Vishwakarma, Vinod

AU - Sinha, Alok

N1 - Funding Information: This research has been supported by funds from the Air Force Research Laboratory (AFRL) and GUIde Consortium at Duke University, Durham, NC. The findings, opinions and recommendations expressed therein are those of authors and are not necessarily those of Duke University or the AFRL or the GUIde Consortium Members.

PY - 2014

Y1 - 2014

N2 - This paper deals with efficient computation of the statistics of the normalized peak maximum amplitude (npma) for a bladed rotor with geometric mistuning. The method is based on the high-fidelity reduced-order model, Modified Modal Domain Analysis (MMDA). It is shown that the statistical distributions of npma from random permutations of blades, which do not require any additional finite element sector analysis, are close to those from conventional Monte Carlo simulations in which coefficients of proper orthogonal decomposition features of geometric mistuning are randomly selected.

AB - This paper deals with efficient computation of the statistics of the normalized peak maximum amplitude (npma) for a bladed rotor with geometric mistuning. The method is based on the high-fidelity reduced-order model, Modified Modal Domain Analysis (MMDA). It is shown that the statistical distributions of npma from random permutations of blades, which do not require any additional finite element sector analysis, are close to those from conventional Monte Carlo simulations in which coefficients of proper orthogonal decomposition features of geometric mistuning are randomly selected.

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UR - https://www.scopus.com/pages/publications/84894424242#tab=citedBy

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AN - SCOPUS:84894424242

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Y2 - 13 January 2014 through 17 January 2014

ER -

Forced response statistics of a bladed rotor with geometric mistuning

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