Mode coupling internal resonance characteristics of submerged floating tunnel tether

Autor: Sheng-nan Sun, Yu-long Pan, Zhi-bin Su
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: SN Applied Sciences, Vol 3, Iss 12, Pp 1-9 (2021)
Druh dokumentu: article
ISSN: 2523-3963
2523-3971
DOI: 10.1007/s42452-021-04848-2
Popis: Article Highlights When the tether is only subjected to in-plane or out of plane harmonic loads, if the first-order in-plane and out of plane frequencies of tether are close to each other, the tether is prone to occur modal coupling internal resonance. Since the frequencies of in-plane and out-of-plane of the tether are not exactly the same. Thus, when modal coupling internal resonance occurs, the external excitation frequency is closer to the first-order modal frequency of the non-load acting plane. When excitation amplitude is a fixed value, increasing the damping ratio may inhibit the occurrence of mode coupling internal resonance and effectively reduce the mid-span amplitude of tether.
Databáze: Directory of Open Access Journals
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