Stochastic model updating: Part 2 - application to a set of physical structures

J. E. Mottershead; C. Mares; S. James; M. L. Friswell

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Stochastic model updating: Part 2 - application to a set of physical structures

机译：随机模型更新：第2部分-应用于一组物理结构

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The application of a stochastic model updating technique using Monte-Carlo inverse propagation and multivariate multiple regression to converge a set of analytical models with randomised updating parameters upon a set of nominally identical physical structures is considered. The structure in question is a short beam manufactured from two components, one of folded steel and the other flat. The two are connected by two rows of spot-welds. The main uncertainty in the model is concerned with the spot-weld but there is also considerable manufacturing variability, principally in the radii of the folds.

机译：考虑了使用蒙特卡洛逆传播和多元多元回归的随机模型更新技术将一组具有随机更新参数的分析模型收敛到一组名义上相同的物理结构上的应用。所讨论的结构是由两个部件制成的短梁，一个是折叠钢，另一个是扁平钢。两者通过两排点焊连接。模型中的主要不确定性与点焊有关，但制造方面也存在很大差异，主要是折痕半径。

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来源
《Mechanical systems and signal processing》 |2006年第8期|p.2171-2185|共15页
作者
J. E. Mottershead; C. Mares; S. James; M. L. Friswell;
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正文语种 eng
中图分类机械制造工艺;
关键词
Uncertainty; Variability; Model updating;

机译：不确定性;可变性;模型更新;

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Stochastic model updating: Part 2 - application to a set of physical structures

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