Dynamic Characteristic Analysis of Blade Based on Fluid-Structure Coupling
ZHOU Zhong-ning
LI Yi-min
GU Yong-xia
XIE Yuan-sen
SUN Wan
Abstract：The dynamic characteristic equations of blade fluid-structure coupling system were established by considering the rotation stress and coupling-flow. The fluid-structure coupling blade modal were calculated using ANSYS and FLUENT. The transient analysis of blade vi-bration, which based on airflow pressure pulsation data from experiments was completed. The results show that the modal frequency increased about 9 Hz. The largest displacement location of vibration mode transferred and the direction of vibration changed. The relative amplitude de-creased from 29. 128, 19. 400, 44. 566 to 28. 945, 19. 285, 44. 562, respectively. The largest deformation and acceleration were at the top of the blade leading edge, and the maximum stress points were at one side of the blade roots.
Keywords：stress stiffeningfluid-structure couplingblade modaltransient analysis
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 401-405 )