Research on equivalent simulation method of shipboard corrugated pipe compensation device
Stress analysis of corrugated compensator is an important research method for the design and life asse-ssment of corrugated pipes.In order to simplify the simulation model of corrugated pipes and improve the simulation effi-ciency,the finite element simulation technology of S-type corrugated pipe with single wave simplified model and symmetric simplified model under internal pressure and bending load is studied.Model simplification method and load application method are proposed.Compared with the simulation results of the complete model,the single wave simplified model and symmetric simplified model can give consistent simulation solutions for the calculation of internal pressure and bending load of corrugated pipes,and the maximum stress error is less than 1％,which meets the requirements of simulation analysis.In the simulation of S-type corrugated pipes under pressure and bending load,the symmetry of the wave section and waveform can be fully utilized by using single wave simplified model and symmetric simplified model to improve the calculation efficiency and ensure the calculation accuracy.
corrugated pipenumerical simulationsimplified model
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