English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Submerged floating tunnel is a new type of traffic building structure under water surface which can span various water courses. The structure has the characteristics of high flexibility and low damping so that vibration problems would be caused by hydrodynamic excitation. Long-term vibration problems could affect the safety and durability of the structure. Therefore, it is necessary to accurately understand the dynamic behavior of the floating tunnel under hydrodynamic excitation. This paper proposes a simplified three-dimensional model to study vibration of the structure for the excitation. Based on the Galerkin method and the mode superposition method with the boundary conditions, the dynamic differential equations of the structure were established in Generalized coordinate system. The    $$Newmark - \beta$$  N e w m a r k - β method is used to solve the equations. Then, adopting FEA (Finite Element Analysis) method to establish the finite element model of the submerged floating tunnel. The result verified the accuracy of the present model. Based on the present model for parameter analysis, the following conclusions are: displacement coordination at the connection position affects the cables’ dynamic behavior greatly compared to tube. Current and horizontal component of wave have significant impact on dynamic response of tube. While the vertical wave component influences cable greatly.

Coupling Vibration Model of Submerged Floating Tunnel in Space