14th IFAC Symposium on System Identification, SYSID 2006

SYSID-2006 Paper Abstract


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


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).