14th IFAC Symposium on System Identification, SYSID 2006

SYSID-2006 Paper Abstract

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Paper ThA3.2

De Troyer, Tim (Erasmushogeschool Brussel), Guillaume, Patrick (Vrije Univ. Brussel), De Sitter, Gert (Vrije Univ. Brussel)

Improved Poly-Reference Frequency-Domain Modal Estimators for Flutter Analysis

Scheduled for presentation during the Regular Session "Identification and detection methods with applications" (ThA3), Thursday, March 30, 2006, 10:50−11:10, Hunter Room

14th IFAC Symposium on System Identification, March 29 - 31, 2006, Newcastle, Australia

This information is tentative and subject to change. Compiled on September 24, 2018

Keywords Vibration and Model Analysis, Frequency Domain Identification, Mechanical and Aerospace

Abstract

In this paper, improved poly-reference frequency-domain estimators will be presented for application in the field of flutter analysis. Flight flutter measurements are heavily contaminated by noise. To adequately handle such data, a stochastic approach, which takes the noise information into account, is required. Starting from the deterministic PolyMAX estimator (i.e., a poly-reference frequency-domain least-squares estimator), stochastic poly-reference frequency-domain estimators will be derived. The performance of these estimators will be evaluated by means of ground vibration test data (FRF measurements) as well as flight flutter data (output-only measurements).