{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,11]],"date-time":"2024-08-11T15:49:44Z","timestamp":1723391384199},"reference-count":38,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,5,31]],"date-time":"2022-05-31T00:00:00Z","timestamp":1653955200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Science Foundation of China","award":["52088102","51625902"]},{"name":"Major Scientific and Technological Innovation Project of Shandong Province","award":["2019JZZY010820"]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"The real-time identification of time-varying cable force is critical for accurately evaluating the fatigue damage of cables and assessing the safety condition of bridges. In the context of unknown wind excitations and only one available accelerometer, this paper proposes a novel cable force identification method based on an improved adaptive extended Kalman filter (IAEKF). Firstly, the governing equation of the stay cable motion, which includes the cable force variation coefficient, is expressed in the modal domain. It is transformed into a state equation by defining an augmented Kalman state vector with the cable force variation coefficient concerned. The cable force variation coefficient is then recursively estimated and closely tracked in real time by the proposed IAEKF. The contribution of this paper is that an updated fading-factor matrix is considered in the IAEKF, and the adaptive noise error covariance matrices are determined via an optimization procedure rather than by experience. The effectiveness of the proposed method is demonstrated by the numerical model of a real-world cable-supported bridge and an experimental scaled steel stay cable. Results indicate that the proposed method can identify the time-varying cable force in real time when the cable acceleration of only one measurement point is available.<\/jats:p>","DOI":"10.3390\/s22114212","type":"journal-article","created":{"date-parts":[[2022,6,2]],"date-time":"2022-06-02T01:43:42Z","timestamp":1654134222000},"page":"4212","source":"Crossref","is-referenced-by-count":7,"title":["Real-Time Identification of Time-Varying Cable Force Using an Improved Adaptive Extended Kalman Filter"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"http:\/\/orcid.org\/0000-0003-2373-4587","authenticated-orcid":false,"given":"Ning","family":"Yang","sequence":"first","affiliation":[{"name":"College of Engineering, Ocean University of China, Qingdao 266100, China"},{"name":"Centre for Infrastructural Monitoring and Protection, School of Civil and Mechanical Engineering, Curtin University, Bentley 6102, Australia"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-0148-0419","authenticated-orcid":false,"given":"Jun","family":"Li","sequence":"additional","affiliation":[{"name":"Centre for Infrastructural Monitoring and Protection, School of Civil and Mechanical Engineering, Curtin University, Bentley 6102, Australia"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-8065-4818","authenticated-orcid":false,"given":"Mingqiang","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Engineering, Ocean University of China, Qingdao 266100, China"}]},{"given":"Shuqing","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Engineering, Ocean University of China, Qingdao 266100, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1177\/1475921718790727","article-title":"A multi-way data analysis approach for structural health monitoring of a cable-stayed bridge","volume":"18","author":"Alamdari","year":"2019","journal-title":"Struct. 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