title: Damage identification using inverse methods.
abstract: This paper gives an overview of the use of inverse methods in damage detection and location, using measured vibration data. Inverse problems require the use of a model and the identification of uncertain parameters of this model. Damage is often local in nature and although the effect of the loss of stiffness may require only a small number of parameters, the lack of knowledge of the location means that a large number of candidate parameters must be included. This paper discusses a number of problems that exist with this approach to health monitoring, including modelling error, environmental effects, damage localization and regularization.
authors.affiliation: Department of Aerospace Engineering, University of Bristol, Bristol BS8 1TR, UK. m.i.friswell@bristol.ac.uk
authors.forename: Michael I
authors.initials: MI
authors.lastname: Friswell
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D003252:Construction Materials / Q000032:analysis*; D004738:Engineering / Q000295:instrumentation / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000295:instrumentation / Q000379:methods*; D005160:Facility Design and Construction / Q000295:instrumentation / Q000379:methods*; D008283:Maintenance / Q000379:methods; D008422:Materials Testing / Q000379:methods*; D008962:Models, Theoretical; D012815:Signal Processing, Computer-Assisted; D014159:Transducers; D014732:Vibration