Model Updating of a Stitched Sandwich Panel Based on Multistage Parameter Selection
Joint Authors
Fei, Qingguo
Wu, Shaoqing
Cao, Zhifu
Jiang, Dong
Fan, Zhiruo
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-09-29
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
The effective numerical model of stitched sandwich composite plays crucial role in dynamics analysis and structural design.
A sensitivity-based multistage model updating method is proposed for modeling of the stitched sandwich panel using the experimental modal frequencies.
Based on applying the periodic boundary condition, the initial equivalent finite element model of a stitched sandwich composite is constructed; the measured frequencies are obtained from the modal test.
According to relative sensitivity analysis of modal frequencies with respect to updating parameters, the different well-conditioned groups of parameters are selected to be updated.
This method is applied to a stitched sandwich panel with established configuration of the stitches.
Results show that the proposed method with the smallest condition number of relative sensitivity matrix has a better performance than the multistage method using type-based parameter group selection and the traditional model updating approach.
American Psychological Association (APA)
Cao, Zhifu& Fei, Qingguo& Jiang, Dong& Wu, Shaoqing& Fan, Zhiruo. 2019. Model Updating of a Stitched Sandwich Panel Based on Multistage Parameter Selection. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1194442
Modern Language Association (MLA)
Cao, Zhifu…[et al.]. Model Updating of a Stitched Sandwich Panel Based on Multistage Parameter Selection. Mathematical Problems in Engineering No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1194442
American Medical Association (AMA)
Cao, Zhifu& Fei, Qingguo& Jiang, Dong& Wu, Shaoqing& Fan, Zhiruo. Model Updating of a Stitched Sandwich Panel Based on Multistage Parameter Selection. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1194442
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194442