Study on Fluid-Structure Coupling Vibration Characteristics of External Aero-Engine Pipelines
Basang Chilie
Abstract：To analyze the vibration characteristics of external aero-engine pipelines in a fluid-structure coupling scenario,a solid pipeline model was established with UG modeling software,which was imported into ANSYS for finite element analysis.The vibration characteristics of the pipelines under varying fluid conditions are investigated by integrating the practical stress state of the pipelines during operation and flow dynamics of the fluid within it.This analysis employs four distinct modules within ANSYS:mechanical module,fluid module,state module and harmonious response module to calculate the pipelines'natural frequency.The results show that fluid parameters produce little effect on pipeline vibration,while pipeline structure parameters exert obvious effect on pipeline struc-ture.The conclusion of this research provides reference for the design and vibration protection of external aero-en-gine pipelines.
Keywords：Aero-engineExternal pipelinesFluid-structure couplingNatural frequency
Publication Date：2025-09-30
Online Publishing Date：2025-10-14(First online date of this platform, not the publication date of the document)
Pages：10( 30-39 )