Nonlinearity in experimental modal analysis

Authors
Worden, K Tomlinson, GR
Citation
K. Worden et Gr. Tomlinson, Nonlinearity in experimental modal analysis, PHI T ROY A, 359(1778), 2001, pp. 113-130
Citations number
26
Categorie Soggetti
Multidisciplinary
Journal title
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
ISSN journal
1364503X → ACNP
Volume
359
Issue
1778
Year of publication
2001
Pages
113 - 130
Database
ISI
SICI code
1364-503X(20010115)359:1778<113:NIEMA>2.0.ZU;2-8
Abstract
Modal analysis is established as one of the fundamental strategies in appro aching structural dynamic problems. Despite its universal appeal, it is fun damentally a linear theory and cannot be applied to significantly nonlinear systems without incurring substantial difficulties in implementation and i nterpretation of results. This paper documents a number of attempts to reco ncile nonlinearity with modal analysis. Three main approaches are discussed , each of which is characterized by a different philosophy.