Abstract:
This paper proposes a three-dimensional finite element modeling and calculation method for accurately simulating the static and dynamic characteristics of fluid-structure coupling of a steel-wire-reinforced rubber pipe. The effectiveness of the method is verified through elastic tube tension, compression, bending stiffness tests and fluid-structure coupling vibration mode identification tests. The fluid-structure coupling dynamics simulation is performed for a steel-wire-reinforced rubber pipe of 0.5 m in length excited by different inner fluid pressure shocks. The influential characteristics of dynamic fluid pressure and pipe curvature on structural vibration stress, strain and acceleration are studied in details. The numerical simulation results of the pipe fluid-structural dynamics are validated with inner high-pressure fluid shock experiments. The presented fluid-structure coupling dynamic simulation method for the complicated elastic pipe structure is very effective for its dynamic characteristics design and performance validation.