An experimental study of cable tension identification based on measurements of mode shapes
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Bibliographic Details
| Author(s): |
Zhan-hang Liu
(Department of Bridge Engineering, Tongji University, Shanghai 200092, China)
Lin Chen 
(Department of Bridge Engineering, Tongji University, Shanghai 200092, China)
Li-Min Sun (Department of Bridge Engineering, Tongji University, Shanghai 200092, China) Yi-qing Zou (Liuzhou OVM Machinery Ltd., Liuzhou 545006, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 1651-1657 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/ghent.2021.1651 | ||||
| Abstract: |
Cable tension identification based on mode shapes extracted from vibration measurements is a relatively new method. In this method, the cable is equivalent to a beam model hinged at its ends and under axial tension with an unknown length to eliminate the effects of boundary conditions. This study focuses on the influences of sensor arrangement in the measurements on the accuracy of the tension identification. For this purpose, full-scale cable experiments have been carried out, where a number of sensors were attached to the cable to record cable acceleration during artificial excitation. The eigenvalue realization algorithm (ERA) has then been applied to identify the mode shapes and frequencies of the cables from the multiple acceleration measurements. The effects of different sensor arrangement schemes and cable tension identification method based on higher- order modes are compared and discussed. |
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| Keywords: |
ropes cables experimental study mode shapes tension identification ERA
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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