Analytical Method for Fluid-Solid Coupling Vibration Analysis of Hydraulic Pipeline System with Hinged Ends

The vibrations in hydraulic pipeline systems inevitably involve the interaction between two-phase media of a solid and fluid. fluid flowing generates pressure on wall thus causes vibration deformation pipeline, which turn changes flow condition, thereby cyclically affecting motion making system vulnerable to damage. Therefore, it is great theoretical practical value investigate behavior characteristics systems. In this study, flow-induced are investigated based Housner’s differential equation pipelines. Through application relevant mathematical theories methods, derivation inherent dynamic with two hinged ends simplified, corresponding equations for natural frequencies response obtained. analytical method analyzing presented, results analysis obtained through computer simulation, providing technical basis safe reliable operation system.