Suspended tunnel water elastic response holographic truncation simulation method and system

Abstract

The invention provides a suspended tunnel water elastic response holographic truncation simulation method and system, and relates to the technical field of suspended tunnels. The method comprises thesteps of determining a holographic truncation geometric scale, a wave field truncation boundary and a suspended tunnel longitudinal truncation point position of an initial simulation domain of a suspended tunnel based on a pre-established wave propagation and structure dynamic response coupling calculation numerical model; determining a target control signal of a truncation execution structure (apool wave maker and a six-degree-of-freedom motion platform in a physical domain) based on a holographic truncation geometric scale and the wave propagation and structure dynamic response coupling calculation numerical model; and performing holographic cooperative truncation control on the pool wave maker and the six-degree-of-freedom motion platform based on the target control signal so as to perform holographic truncation simulation on the hydroelastic response of the suspended tunnel. The authenticity and accuracy of the complex wave hydrodynamic load effect can be guaranteed, and meanwhilesimulation of overall dynamic response and local motion stress deformation hydroelastic response of the suspension tunnel can be achieved.

Description

technical field [0001] The invention relates to the technical field of floating tunnels, in particular to a hydroelastic response holographic truncation simulation method and system for floating tunnels. Background technique [0002] The floating tunnel is a large-scale underwater tunnel that uses the buoyancy of water to build a floating tunnel in the water. It is another subversive sea-crossing channel technology for humans to cross the deep-sea fjords in the future after the sea-crossing bridge and the submarine tunnel. Compared with traditional ultra-large floating structures, the structural system of floating tunnels is more complex, the span can extend tens of kilometers or even hundreds of kilometers, and the scope of crossing waters is wider, and the spatial differences of seabed conditions and environmental loads such as waves and currents Larger, and the system composition is quite complex. Under the complex marine environment load, the overall and local structure,...

AI Technical Summary

Problems solved by technology

[0003] The existing main method is to use numerical simulation or physical model test alone. However, the numerical simulation method tends to make it difficult for a calculation model to take into account the propagation simulation of large-scale and complex waves, as well as the overall and local motion of complex structures, and the accuracy of force and deformation parameters. calculation; while the physical model test method is difficult to accurately simulate the confinement, end restraint and actual stiffness of the adjacent structural sections of the floating tunnel

Moreover, limited by the scope of the experimental site, equipment performance, scale, etc., it can only cover a limited range of tunnels, and the flexibility of transformation and modification is insufficient, and it is costly, time-consuming and laborious, and cannot accurately and effectively simulate the underwater behavior of ultra-long and wide floating tunnel structures. Real hydroelastic dynamics and forces

Images