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In plane free vibration analysis of cable-beam composite structure with cable damage
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Junyu WU1, Yunyue CONG1, 2, Houjun KANG1, 2, Tieding GUO1, 2, Xiaoyang SU1, 2
Chinese Journal of Computational Mechanics | 2025, 42(5) : 722 - 728
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Chinese Journal of Computational Mechanics | 2025, 42(5): 722-728
• Research Papers •
In plane free vibration analysis of cable-beam composite structure with cable damage
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Junyu WU1, Yunyue CONG1, 2, Houjun KANG1, 2, Tieding GUO1, 2, Xiaoyang SU1, 2
Affiliations
  • 1.School of Civil Engineering, Guangxi University, Nanning 530004, China
  • 2.Engineering Mechanics Research Center, Guangxi University, Nanning 530004, China
Published: 2025-10-28 doi: 10.7511/jslx20240618001
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In order to investigate the effect of cable damage on in-plane free vibration characteristics of cable-beam composite structures, three dimensionless parameters of cable damage intensity, extent and position are introduced in this paper to establish an in-plane dynamic model of single-cable cantilever beam composite structures with cable damage. The eigenvalue problem of in-plane free vibration of a single cable-cantilever beam model is solved by the method of separation of variables. At the same time, the finite element models under undamaged and damaged conditions of the cable are established for verification, and the results are in good agreement with the theoretical results. The results show that the frequency of the combined structure will decrease obviously only when the sag or damage intensity and extent of the cable are large. When the damage intensity and extent of the cable increase to a certain value, 1∶1 in-mode resonance phenomena tend to appear for high order frequencies. The asymmetric initial configuration caused by damage can increase the frequency of the combined structure, and some mixed modes of the combined structure change to local modes, while some local modes change to mixed modes.

cable-beam composite structure  /  cable damage  /  structural dynamics  /  free vibration  /  internal resonance
Junyu WU, Yunyue CONG, Houjun KANG, Tieding GUO, Xiaoyang SU. In plane free vibration analysis of cable-beam composite structure with cable damage[J]. Chinese Journal of Computational Mechanics, 2025 , 42 (5) : 722 -728 . DOI: 10.7511/jslx20240618001
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Article Info
doi: 10.7511/jslx20240618001
  • Receive Date：2024-06-18
  • Online Date：2026-03-24
  • Published：2025-10-28
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  • Received：2024-06-18
  • Revised：2024-08-06
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Affiliations
    1.School of Civil Engineering, Guangxi University, Nanning 530004, China
    2.Engineering Mechanics Research Center, Guangxi University, Nanning 530004, China
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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