01 - Aircraft Design and Integrated Systems
A NOVEL RBF DATA TRANSFER METHOD BASED ON PCA GEOMETRIC FEATURE EXTRACTION
S.S. Liu¹, Q. You¹, Z.K. Liu², X. Liu², Y.W. Gui²; ¹State Key Laboratory of Aerodynamics, China ;²China Aerodynamics Research and Development Center, China
In order to improve the applicability and reliability of high frequency data transfer in the fluid-thermal-structure coupling problem, a novel radial basis function(RBF) modification method based on Principal Component Analysis(PCA) by extracting local geometric feature is proposed. the hypersonic control surface and wing body combination were adopted to verify the effect of this method. The results indicate that this method can improve the accuracy of TPS, MQ and compactly support RBF greatly and has good application prospects in multi-field coupling problems.