Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80274
Title: Looseness localization for bolted joints using Bayesian operational modal analysis and modal strain energy
Authors: Hu, YJ
Guo, WG
Jiang, C 
Zhou, YL
Zhu, WD
Keywords: Looseness localization
Bolted joints
Damage detection
Bayesian operational modal analysis
Modal strain energy
Issue Date: 2018
Publisher: SAGE Publications
Source: Advances in mechanical engineering, Nov. 2018, v. 10, no. 11, 1687814018808690, p. 1-10 How to cite?
Journal: Advances in mechanical engineering 
Abstract: Bayesian operational modal analysis and modal strain energy are employed for determining the damage and looseness of bolted joints in beam structures under ambient excitation. With this ambient modal identification technique, mode shapes of a damaged beam structure with loosened bolted connections are obtained based on Bayesian theory. Then, the corresponding modal strain energy can be calculated based on the mode shapes. The modal strain energy of the structure with loosened bolted connections is compared with the theoretical one without bolted joints to define a damage index. This approach uses vibration-based nondestructive testing of locations and looseness of bolted joints in beam structures with different boundary conditions by first obtaining modal parameters from ambient vibration data. The damage index is then used to identify locations and looseness of bolted joints in beam structures with single or multiple bolted joints. Furthermore, the comparison between damage indexes due to different looseness levels of bolted connections demonstrates a qualitatively proportional relationship.
URI: http://hdl.handle.net/10397/80274
ISSN: 1687-8132
EISSN: 1687-8140
DOI: 10.1177/1687814018808698
Rights: © The Author(s) 2018
Creative Commons CC BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
The following publication Hu, Y.J., Guo, W.G., Jiang, C., Zhou, Y.L., & Zhu, W.D. (2018). Looseness localization for bolted joints using Bayesian operational modal analysis and modal strain energy. Advances in mechanical engineering, 10 (11), 1687814018808690, p. 1-10 is published by Sage Publications and is available at https://dx.doi.org/10.1177/1687814018808698
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Hu_Looseness_Localization_Bolted.pdf2.83 MBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record
PIRA download icon_1.1View/Download Contents

Page view(s)

11
Citations as of Mar 12, 2019

Download(s)

3
Citations as of Mar 12, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.