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Reconstructing dynamic events from time‐limited spatially distributed data
Author(s) -
Doyle James F.
Publication year - 2002
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.417
Subject(s) - regularization (linguistics) , displacement (psychology) , wavelet , finite element method , representation (politics) , computer science , algorithm , dynamic data , structural engineering , computer vision , artificial intelligence , engineering , psychology , politics , law , political science , psychotherapist , programming language
This paper presents a method of reconstructing dynamic events from limited photographically recorded responses. It is based on a wavelet representation of the unknown applied loading in conjunction with a general finite element program. The incorporation of regularization terms provides a robust solution to these usually ill‐conditioned problems. The method allows for the data collected to be of dissimilar type (e.g. strain and displacement), as well as for the data to be collected remotely. As a demonstration of the method, multiple force reconstructions for an impacted plate with a hole are determined using synthetically generated Moiré displacement data. Copyright © 2002 John Wiley & Sons, Ltd.