Experimental Studies on Finite Element Model Updating for a Heated Beam-Like Structure
Joint Authors
Sun, Kaipeng
Zhao, Yonghui
Hu, Haiyan
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-02
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
An experimental study was made for the identification procedure of time-varying modal parameters and the finite element model updating technique of a beam-like thermal structure in both steady and unsteady high temperature environments.
An improved time-varying autoregressive method was proposed first to extract the instantaneous natural frequencies of the structure in the unsteady high temperature environment.
Based on the identified modal parameters, then, a finite element model for the structure was updated by using Kriging meta-model and optimization-based finite-element model updating method.
The temperature-dependent parameters to be updated were expressed as low-order polynomials of temperature increase, and the finite element model updating problem was solved by updating several coefficients of the polynomials.
The experimental results demonstrated the effectiveness of the time-varying modal parameter identification method and showed that the instantaneous natural frequencies of the updated model well tracked the trends of the measured values with high accuracy.
American Psychological Association (APA)
Sun, Kaipeng& Zhao, Yonghui& Hu, Haiyan. 2015. Experimental Studies on Finite Element Model Updating for a Heated Beam-Like Structure. Shock and Vibration،Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1077957
Modern Language Association (MLA)
Sun, Kaipeng…[et al.]. Experimental Studies on Finite Element Model Updating for a Heated Beam-Like Structure. Shock and Vibration No. 2015 (2015), pp.1-15.
https://search.emarefa.net/detail/BIM-1077957
American Medical Association (AMA)
Sun, Kaipeng& Zhao, Yonghui& Hu, Haiyan. Experimental Studies on Finite Element Model Updating for a Heated Beam-Like Structure. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1077957
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1077957