Optimal Sensor Deployment: Application to Model Updating

Author:

Lallement G.1,Ramanitranja A.1,Cogan S.1

Affiliation:

1. R. Chaléat Applied Mechanics Laboratory, URA 04, UFRST, University of Franche-Comté, Besançon, France

Abstract

The proposed formulations deal with various specific aspects of the problem of parametric identi fication of linear elastodynamic finite element models. They involve adapting, via expansion data observed on the structure, to the analogous quantities calculated from the model. They also aim at improving the condition number of the estimation equations. The minimization of expansion errors in frequency responses or eigenvectors by an optimal choice of the observed dofs is formulated in two cases: the first uses a Ritz basis consisting of eigenvectors and static residuals, while the second implies using a Guyan-static condensation matrix. The relationship between optimal expansion and maximization of the cutoff frequency corresponding to this condensation is also analyzed.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Mechanics of Materials,Aerospace Engineering,Automotive Engineering,General Materials Science

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Robust Sensor and Exciter Design for Linear Structures;Model Validation and Uncertainty Quantification, Volume 3;2016

2. Robust Modal Test Design Under Epistemic Model Uncertainties;Model Validation and Uncertainty Quantification, Volume 3;2015

3. A robust model-based test planning procedure;Journal of Sound and Vibration;2005-12

4. Sensors and actuators: finite element and boundary element analyses and simulations. A bibliography (1997–1998);Finite Elements in Analysis and Design;1999-10

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