Feature Extraction for Structural Dynamics Model Validation

Farrar, Charles¹  Nishio, Mayuko²  Hemez, Francois¹  Stull, Chris¹  Park, Gyuhae³  Cornwell, Phil⁴  Figueiredo, Eloi⁵  Luscher, D. J.¹  Worden, Keith⁶ 

[1]Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

[2]Yokohama Univ. (Japan)

[3]Chonnam Univ. (South Korea)

[4]Rose-Hulman Inst. of Technology, Terre Haute, IN (United States)

[5]Univ. Lus????fona, Lisbon (Portugal)

[6]Univ. of Sheffield (United Kingdom)

关键词: model validation structural dynamics numerical modeling experimental measurements;   

DOI  :  10.2172/1235219
RP-ID  :  LA-UR-16-20151
PID  :  OSTI ID: 1235219

学科分类：数学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

As structural dynamics becomes increasingly non-modal, stochastic and nonlinear, finite element model-updating technology must adopt the broader notions of model validation and uncertainty quantification. For example, particular re-sampling procedures must be implemented to propagate uncertainty through a forward calculation, and non-modal features must be defined to analyze nonlinear data sets. The latter topic is the focus of this report, but first, some more general comments regarding the concept of model validation will be discussed.