DocumentCode
517985
Title
Notice of Retraction
Finite element model updating based on complex modal analysis for unsymmetrical damping system
Author
BaoQiang Zhang ; GuoPing Chen ; QinTao Guo
Author_Institution
Coll. of Aerosp. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Volume
5
fYear
2010
fDate
16-18 April 2010
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Finite element model updating with incomplete complex modal data and structural parameters coupled with mass, stiffness and damping matrixes simultaneously for unsymmetrical damping system using optimization method is presented. By the use of finite element software-NASTRAN and mathematical tool-MATLAB model updating based on complex eigenvalue sensitivity analysis is successfully accomplished in this piece of work. The updating for simulation example about flexible rotor system, taking many cases into experiment and modeling errors account, is performed using bearing stiffness, bearing damping and diametrical moment of inertia parameters simultaneously. The results proved the effectiveness of the method of updating using complex modal data for unsymmetrical damping system. The proposed method could be used and extended to engineering easily.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Finite element model updating with incomplete complex modal data and structural parameters coupled with mass, stiffness and damping matrixes simultaneously for unsymmetrical damping system using optimization method is presented. By the use of finite element software-NASTRAN and mathematical tool-MATLAB model updating based on complex eigenvalue sensitivity analysis is successfully accomplished in this piece of work. The updating for simulation example about flexible rotor system, taking many cases into experiment and modeling errors account, is performed using bearing stiffness, bearing damping and diametrical moment of inertia parameters simultaneously. The results proved the effectiveness of the method of updating using complex modal data for unsymmetrical damping system. The proposed method could be used and extended to engineering easily.
Keywords
damping; elasticity; finite element analysis; machine bearings; mechanical engineering computing; modal analysis; rotors; vibrations; NASTRAN; bearing damping; bearing stiffness; complex modal analysis; damping matrixes; finite element model; finite element software; flexible rotor system; structural parameters; unsymmetrical damping system; Aerospace engineering; Damping; Educational institutions; Electronic mail; Finite element methods; Modal analysis; Rotating machines; Sensitivity analysis; Structural engineering; Symmetric matrices; Complex Modal; Experiment and Modeling Errors; Finite Element Model Updating; Sensitivity Analysis; Unsymmetrical Damping System;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-6347-3
Type
conf
DOI
10.1109/ICCET.2010.5485368
Filename
5485368
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