CEC Faculty Articles

Title

Identifying Second-Order Models of Mechanical Structures in Physical Coordinates: An Orthogonal Complement Approach

Event Date/Location

Zurich, Switzerland

Document Type

Article

Date

7-2013

Publication Title

European Control Conference

ISSN or ISBN

978-3-033-03962-9

First Page

3973

Last Page

3978

Description

The problem of identifying the mass, damping, and stiffness matrices of a mechanical structure is a well known constrained system identification problem in the literature. The constraints come from the symmetry of the mass, damping, and stiffness matrices, as well as the number of sensors and actuators placed on the structure. Here we present two solutions to this problem, one based on a structured system identification approach and the other based on a similarity transformation approach. The latter approach takes advantage of the non-uniqueness of the problem to force the solution to a particular basis. Examples of both approaches show the feasibility of the methods, and it is expected to shed light on solving the most restrictive of the structural identification class of problems.

This document is currently not available here.

Peer Reviewed

Find in your library

Share

COinS