03.2 - Structural Analysis and Design, Structural Dynamics, Aeroelasticity
UNCERTAINTY QUANTIFICATION AND GLOBAL SENSITIVITY ANALYSIS FOR HYPERSONIC AEROTHERMOELASTIC ANALYSIS
K. Yeč, Z.Y. Yeč, Z.H. Chenč, Z. Quč; čNorthwestern Polytechnical University, China
A parameterized model for temperature distribution is proposed, and base on Monte Carlo Simulation (MSC) method and Spare Grid Numerical Integration (SGNI) method, uncertainty and global sensitivity analysis for hypersonic control surface aerothermoelastic are studied. The results show that: variation coefficient of structure natural frequency and flutter analysis is 8.84%, and the global sensitivity of the two uncertainty parameter is about 50%.