A Study of Influencing Factors on Frequencies and Mode Shapes of Aeroengine Turbine Blades
LI Chun-wang
LI Hai-yun
WANG Che
ZHANG Zhong-ping
SUN Qiang
Abstract：The mode of a certain type aeroengine turbine blades under the condition of operating regime is analyzed by using the finite elements analysis (FEA)software ANSYS in consideration of influence factors from centrifugal field,aerodynamic field,temperature and thermal field separately.It is found that centrif-ugal field and temperature field are the main factors influencing the natural frequency by comparing the fre-quencies and mode shapes with those of stationary ones at room temperature.But they have less influence on the blades'mode shapes.And then,thermal-structure coupling modal analysis of the blades is conduc-ted in consideration of the effects of centrifugal field and temperature field simultaneously.At the same time,natural frequencies and mode shapes of the blades are obtained in working condition.The conclusion obtained in this paper is of great significance and engineering practical value to the design,retrofit and use of aeroengine blades.
Keywords：turbine bladethermal-structure couplingmodal analysisprestressfrequencymode shape
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 5-9 )