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| Research on unsteady aerodynamic modeling based on random forest algorithm |
| Received:September 05, 2017 Revised:December 24, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20170905002 |
| KeyWord:aerodynamic modeling aeroelasticity reduced order model random forest algorithm Fluid-Structure Coupling |
| Author | Institution |
| 徐旺丁 |
合肥工业大学 机械工程学院, 合肥 |
| 张兵 |
合肥工业大学 机械工程学院, 合肥 |
| 王华毕 |
合肥工业大学 机械工程学院, 合肥 |
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| Abstract: |
| Aiming at the accuracy and efficiency of the existing unsteady aerodynamic modeling method for the prediction of aerodynamic elasticity,the random forest (RF) algorithm is introduced into the field of unsteady aerodynamic modeling,and the unsteady aeroelasticity reduction based on random forest algorithm is constructed,and the resulting model is used to predict the aerodynamic elasticity.The two-dimensional NACA0012 airfoil is used to predict the flutter boundary and the LCO characteristics of NACA64A010 airfoil.The results of the RF/ROM method are compared with the CFD/CSD coupling calculation results and the test results.It is found that the RF/ROM is feasible,efficient and accurate.The method can predict the aerodynamic elastic properties of the aircraft quickly and accurately. |