Model Updating Using a Quadratic Form Conference Paper uri icon

abstract

  • The paper presents a method for model updating, called Quadratic Compression Method (QCM). The updated model has a fixed structure with some free parameters. Algebraic manipulations of the eigenvalue equation lead to a simplified equation with a lower dimension. This equation is then solved in a Least Squares sense. The method is shown to belong to the class of Minimization of the Error in the Characteristic Equation (MECE), with a particular choice of the weighting matrix. The paper presents also a weighted version of the method, called WQCM, which is motivated by reducing the effect of measuring noise. In addition to the theoretic analysis, the superior robustness to noise properties of QCM and WQCM are demonstrated by simulations and experimentally.

name of conference

  • ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference

published proceedings

  • Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C

author list (cited authors)

  • Tarazaga, P. A., Halevi, Y., & Inman, D. J.

citation count

  • 2

complete list of authors

  • Tarazaga, Pablo A||Halevi, Yoram||Inman, Daniel J

publication date

  • January 2005

publisher