MATRIX PERTURBATION FOR ANALYTICAL MODEL IMPROVEMENT.

Jay C. Chen; John A. Garba

MATRIX PERTURBATION FOR ANALYTICAL MODEL IMPROVEMENT.

Jay C. Chen^*, John A. Garba

^*Corresponding author for this work

Department of Mechanical and Aerospace Engineering

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

3 Citations (Scopus)

Abstract

A matrix perturbation method is proposed to calculate the Jacobian matrix and to compute the new eigendata for the parameter estimation procedure. The advantages of the method are the applicability to large complex structures without knowing the analytical expressions for the mass and stiffness matrices, and a cost effective approach for the re-computation of the eigendata. This method also allows the use of other measurements such as modal forces, kinetic energy distribution, and strain energy distributions in the estimation procedure. A realistic sample problem is presented to demonstrate the effectiveness of the proposed method.

Original language	English
Publication status	Published - 1979
Event	Collect Tech Pap AIAA ASME Struct Struct Dyn Mater Conf 20th - St Louis, MO, USA Duration: 4 Apr 1979 → 6 Apr 1979

Conference

Conference	Collect Tech Pap AIAA ASME Struct Struct Dyn Mater Conf 20th
City	St Louis, MO, USA
Period	4/04/79 → 6/04/79

Cite this

@conference{37f4b52ae9794af5a5e8223f33655c1b,

title = "MATRIX PERTURBATION FOR ANALYTICAL MODEL IMPROVEMENT.",

abstract = "A matrix perturbation method is proposed to calculate the Jacobian matrix and to compute the new eigendata for the parameter estimation procedure. The advantages of the method are the applicability to large complex structures without knowing the analytical expressions for the mass and stiffness matrices, and a cost effective approach for the re-computation of the eigendata. This method also allows the use of other measurements such as modal forces, kinetic energy distribution, and strain energy distributions in the estimation procedure. A realistic sample problem is presented to demonstrate the effectiveness of the proposed method.",

author = "Chen, \{Jay C.\} and Garba, \{John A.\}",

year = "1979",

language = "English",

note = "Collect Tech Pap AIAA ASME Struct Struct Dyn Mater Conf 20th ; Conference date: 04-04-1979 Through 06-04-1979",

}

TY - CONF

T1 - MATRIX PERTURBATION FOR ANALYTICAL MODEL IMPROVEMENT.

AU - Chen, Jay C.

AU - Garba, John A.

PY - 1979

Y1 - 1979

N2 - A matrix perturbation method is proposed to calculate the Jacobian matrix and to compute the new eigendata for the parameter estimation procedure. The advantages of the method are the applicability to large complex structures without knowing the analytical expressions for the mass and stiffness matrices, and a cost effective approach for the re-computation of the eigendata. This method also allows the use of other measurements such as modal forces, kinetic energy distribution, and strain energy distributions in the estimation procedure. A realistic sample problem is presented to demonstrate the effectiveness of the proposed method.

AB - A matrix perturbation method is proposed to calculate the Jacobian matrix and to compute the new eigendata for the parameter estimation procedure. The advantages of the method are the applicability to large complex structures without knowing the analytical expressions for the mass and stiffness matrices, and a cost effective approach for the re-computation of the eigendata. This method also allows the use of other measurements such as modal forces, kinetic energy distribution, and strain energy distributions in the estimation procedure. A realistic sample problem is presented to demonstrate the effectiveness of the proposed method.

UR - https://www.scopus.com/pages/publications/85095910640

M3 - Conference Paper

AN - SCOPUS:85095910640

T2 - Collect Tech Pap AIAA ASME Struct Struct Dyn Mater Conf 20th

Y2 - 4 April 1979 through 6 April 1979

ER -

MATRIX PERTURBATION FOR ANALYTICAL MODEL IMPROVEMENT.

Abstract

Conference

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