Dynamic Time History Response Of A Submerged Floating Tunnel

In the process of the traffic development,there are many ways for us to choose,such as cars,ships,aircraft,railway etc.However,when we face a vast expanse of water,but often only through ships and planes to travel.Now we have found a new way of transportation.This mode of transportation is not limited to the surface or under water,its mechanical characteristics is a combination of its own gravity,the buoyancy of water and the anchorage force,the three also function in order to ensure the stability of submerged floating tunnel.Traffic structure of this new type of Chu much a little,for example,it can be more flexible layout in some Straits,economy and benefit more prominent than ever,the construction costs are also significantly improved mode of transportation.It is worth to study the characteristics of the floating tunnel in our country,so that the floating tunnel in water becomes a new research field in the tunnel.In this paper,the main research work in water suspension tunnel:1.A brief overview of the working environment of the suspended tunnel in water,and a general introduction to the research progress of the water suspended tunnel at home and abroad,focusing on the study of the mechanical response of the tunnel in water;2.Introduction water interaction between tunnel and suspended in fluid solid coupling,and find out the corresponding solution,analysis the principle of fluid solid coupling,and the fluid solid coupling method;and the mechanical response of structures in water under the action of waves,and gives the basic ideas of simulation;3.Discuss the principle of the vortex induced effect of the suspended tunnel,analyze the influence of the vortex induced effect on the suspension tunnel,and analyze the main fluid force on the suspended tunnel,and give the solution of the response;4.Ansys workbench simulation of suspended the information under various working conditions of the tunnel,analysis on the floating tunnel of stress-strain relationship,analysis under the action of water flow force floating tunnel section stress strain largest area and the first to produce parts;5.Based on Fluent simulation suspended the vortex-induced effect of tunnel,the role of flow strength of floating tunnel,and drag and lift the main changes of the two forms of force,according to the analysis of fluid flow field changes in the different depth and velocity of vortex-induced field under different;6.According to the simulation results,a comprehensive theoretical research before,finally obtained the stress strain relationship and fluid loading on the floating tunnel of submerged floating tunnel in the flow,and get the dynamic response mechanism of submerged floating tunnel,vortex induced effect and around the tunnel should be suspended and dead.