Numerical simulation analysis method for sealing characteristics of spring metal C-shaped ring

The invention discloses a numerical simulation analysis method for sealing characteristics of a spring metal C-shaped ring. The method comprises the following steps: S1, establishing a simulation compression model: establishing a three-dimensional geometric model of the spring metal C-shaped ring, an upper rigid flange and a lower rigid flange by adopting ABAQUS; S2, defining material attributes of the three-dimensional geometric model of the spring metal C-shaped ring; S3, performing grid division on the simulation compression model based on a structural and swept grid division algorithm to generate a grid model; S4, applying boundary conditions based on the relative position relationship and shape of each part in the simulation compression model; S5, applying a load to the upper rigid flange to simulate the compression and springback process of the spring metal C-shaped ring, and deriving the data for simulating the number of the compression and springback processes for calculation. By means of the analysis