A method for static aeroelastic analysis based on the high-order panel method and modal method

作者：Yang Chao; Zhang BoCheng^*; Wan ZhiQiang; Wang YaoKun

来源：Science in China - Series E: Technological Sciences , 2011, 54(3): 741-748.

DOI：10.1007/s11431-010-4253-4

• aeroelasticity
• flight loads
• high-order panel method
• modal method
• experimental aerodynamic forces

A method for static aeroelastic analysis based on the high-order panel method and modal method is presented. The static aeroelastic characteristics of flexible wings are investigated using this method. Three-dimensional aerodynamic models of flexible wings are constructed based on the geometry of wing configuration, and the modal method is adopted to achieve the fluid-structure coupling. The static aeroelastic characteristics of the AGARD445.6 wing and a low-aspect-ratio wing are investigated in this study. The influences of elastic structural deformation on aerodynamic forces are studied with an emphasis analyzing the aerodynamic coefficients, wing root loads, structural deformation and pressure distribution of different sections, and results are compared with the results from wind-tunnel tests and the elastic results based on experimental aerodynamic forces. It is concluded that aerodynamic forces can be accurately calculated with the high-order panel method. The method presented in this study is feasible, credible and efficient. Comprehensive static aeroelastic characteristics can be provided by the method for early phases of aircraft design.

• 出版日期2011-3
• 单位北京航空航天大学