The Radial Displacement of the HPT Blade under the Effects of the Temperature Field and the Centrifugal

Abstract The blade temperature field is computed using the finite element software of ANSYS and Hypermesh. The radial displacement response under the temperature field and centrifugal is analyzed. And a new method of plotting the grid and loading the boundary for complicated three-dimensional model in the finite element software is advanced. The heat transfer coefficients at different parts of the blade are introduced. The results show that for the temperature circumference distribution of the blade profile, the temperature is the highest at the leading and trailing edges and low at the middle. For the radial distribution the temperature is low at the blade root, and high at the blade profile and the integral tip shroud. The effect of temperature field is the main reason of the blade radial displacement while the centrifugal effect accounts for little.