#7440. Fluid-Vehicle-Tunnel Coupled Vibration Analysis of a Submerged Floating Tunnel Based on a Wake Oscillator Model

October 2026publication date
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Journal’s subject area:
Ocean Engineering;
Environmental Engineering;
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Abstract:
The submerged floating tunnel (SFT) is a newly developed traffic structure for crossing the long waterway. On the basis of the vehicle-tunnel coupled vibration, the vortex-induced effect of the SFT in the water flow field is considered through a wake oscillator model. The tunnel is modeled as an Euler-Bernoulli beam supported by the continuous elastic foundation. The vehicle is regarded as a spring-mass block moving on the tube with a damping term.
Keywords:
Finite-difference method; Fluid-vehicle-tunnel coupled vibration; Mean square value; Submerged floating tunnel; Wake oscillator

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