Numerical simulation method of immersed tunnel pipe joint based on nanofluid damping

A numerical simulation method for immersed tunnel pipe joint joints based on nanofluid damping belongs to the technical field of seabed immersed tube damping, and comprises the following steps: determining the connection mode of the existing pipe joint joints; establishing a pipe joint connector simplified mechanical model; defining a simulation mode of each element in the simplified mechanical model; a nanofluid energy-absorbing material is introduced as a damping measure of a pipe joint connector; arranging nano-fluid damping measures; defining an input load; and node energy consumption characteristic comparison. On the basis of establishing a simplified mechanical model of the immersed tunnel pipe joint, a three-dimensional numerical simulation method of the pipe joint is provided, so that the mechanical response characteristics of the pipe joint are truly represented. On the basis, a nanofluid energy-absorbing material is introduced into the pipe joint to serve as a shock absorption measure for the immers