Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 905-925 |
Seitenumfang | 21 |
Fachzeitschrift | Archive of applied mechanics |
Jahrgang | 87 |
Ausgabenummer | 5 |
Frühes Online-Datum | 23 Feb. 2017 |
Publikationsstatus | Veröffentlicht - 1 Mai 2017 |
Abstract
Deterministic model updating is now a mature technology widely applied to large-scale industrial structures. It is concerned with the calibration of the parameters of a single model based on one set of test data. It is, of course, well known that different analysts produce different finite element models, make different physics-based assumptions, and parameterize their models differently. Also, tests carried out on the same structure, by different operatives, at different times, under different ambient conditions produce different results. There is no unique model and no unique data. Therefore, model updating needs to take account of modeling and test-data variability. Much emphasis is now placed on what has become known as stochastic model updating where data are available from multiple nominally identical test structures. In this paper two currently prominent stochastic model updating techniques (sensitivity-based updating and Bayesian model updating) are described and applied to the DLR AIRMOD structure.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Maschinenbau
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in: Archive of applied mechanics, Jahrgang 87, Nr. 5, 01.05.2017, S. 905-925.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Sensitivity or Bayesian model updating
T2 - a comparison of techniques using the DLR AIRMOD test data
AU - Patelli, Edoardo
AU - Govers, Yves
AU - Broggi, Matteo
AU - Gomes, Herbert Martins
AU - Link, Michael
AU - Mottershead, John E.
N1 - Publisher Copyright: © 2017, The Author(s). Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - Deterministic model updating is now a mature technology widely applied to large-scale industrial structures. It is concerned with the calibration of the parameters of a single model based on one set of test data. It is, of course, well known that different analysts produce different finite element models, make different physics-based assumptions, and parameterize their models differently. Also, tests carried out on the same structure, by different operatives, at different times, under different ambient conditions produce different results. There is no unique model and no unique data. Therefore, model updating needs to take account of modeling and test-data variability. Much emphasis is now placed on what has become known as stochastic model updating where data are available from multiple nominally identical test structures. In this paper two currently prominent stochastic model updating techniques (sensitivity-based updating and Bayesian model updating) are described and applied to the DLR AIRMOD structure.
AB - Deterministic model updating is now a mature technology widely applied to large-scale industrial structures. It is concerned with the calibration of the parameters of a single model based on one set of test data. It is, of course, well known that different analysts produce different finite element models, make different physics-based assumptions, and parameterize their models differently. Also, tests carried out on the same structure, by different operatives, at different times, under different ambient conditions produce different results. There is no unique model and no unique data. Therefore, model updating needs to take account of modeling and test-data variability. Much emphasis is now placed on what has become known as stochastic model updating where data are available from multiple nominally identical test structures. In this paper two currently prominent stochastic model updating techniques (sensitivity-based updating and Bayesian model updating) are described and applied to the DLR AIRMOD structure.
KW - Bayesian
KW - Covariance
KW - Deterministic
KW - Model updating
KW - Stochastic
UR - http://www.scopus.com/inward/record.url?scp=85013674408&partnerID=8YFLogxK
U2 - 10.1007/s00419-017-1233-1
DO - 10.1007/s00419-017-1233-1
M3 - Article
AN - SCOPUS:85013674408
VL - 87
SP - 905
EP - 925
JO - Archive of applied mechanics
JF - Archive of applied mechanics
SN - 0939-1533
IS - 5
ER -