19th Asia-Pacific Vibration Conference (APVC2021)

359 / 2021-07-13 21:38:38

Finite element analysis of static characteristics of large diameter flexible pipe

Flexible pipe; Static characteristics; Constitutive model; Finite element analysis

[Objective]The static characteristics of large-diameter flexible pipe are studied. Based on the simulation analysis, using the ABAQUS software, the pressure in the tube, the cord angle, and the thickness of the rubber layer are used as variables to obtain the static stiffness curve of the flexible pipe. [Conclusion]The calculation results show that with the increase of the pressure in the pipe and the angle of the cord layer, the static stiffness of this type of flexible pipe increases; the thickness of the rubber layer has a smaller effect on the static stiffness; The static stiffness of the flexible pipe under compression is much smaller than the static stiffness under tension.