14th IFAC Symposium on System Identification, SYSID 2006

SYSID-2006 Paper Abstract


Paper FrB4.1

Sjövall, Per (Chalmers Univ. of Tech.), McKelvey, Tomas (Chalmers Univ. of Tech.), Abrahamsson, Thomas (Chalmers Univ. of Tech.)

Constrained State-Space System Identification with Application to Structural Dynamics

Scheduled for presentation during the Regular Session "Modal Analysis and Estimation of Mechanical Properties" (FrB4), Friday, March 31, 2006, 15:30−15:50, Cummings 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 Multivariable System Identification, Vibration and Model Analysis


Constrained identification of state-space models representing a structural dynamic systems is addressed. Based on physical insight, transfer function constraints are formulated in terms of the state-space parametrization. An example shows that a method tailored for this application, which utilizes the non-uniqueness of a state-space model, outperforms the classic sequential quadratic programming method in terms of robustness and convergence properties.