Reduction of snubber in nuclear piping system based on numerical simulation

In order to remove the snubber in the nuclear-grade piping system, a numerical simulation method is adopted for the mechanical analysis of nuclear piping system based on the finite element program, and the piping stress, the displacements of nodes, and the support loads are obtained. The results are compared with and without the snubber, and the mechanical capability of the piping system still meets the design code through the changing of the function and position of supports as well as using the rigid supports according to these results. (authors)