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|Title:||Looseness localization for bolted joints using Bayesian operational modal analysis and modal strain energy||Authors:||Hu, YJ
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
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Citations as of Mar 12, 2019
Citations as of Mar 12, 2019
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