学术信息

Geometrically Exact Nonlinear Aeromechanics Modeling and Aeroelastic Response of Composite Rotor Blades

发布时间:2018-06-19浏览次数:1099发布者:张金凤来源:南京航空航天大学

题目:Geometrically Exact Nonlinear Aeromechanics Modeling and Aeroelastic Response of Composite Rotor Blades

报告人:尚丽娜 博士(航空宇航学院 航空航天交叉研究院)

时间:2018619日(星期二)14:30PM

地点:明故宫校区A18-209

主办单位:航空航天交叉研究院、航空宇航学院

报告摘要:

Composite blades can significantly improve the aeroelastic stability, vibration characteristic and aerodynamic efficiency of rotors and have been widely used in helicopters. All of the existing aeroelastic analyses of composite blades are based on the moderate deflection beam theory and use an order scheme to neglect higher-order terms. However, with the development of novel rotor concepts, rotor blades may produce large deflections, which makes the analyses based on the moderate deflection beam theory not applicable anymore. Therefore, it is necessary to developan aeroealstic modeling and aeroelasticanalysis method for composite blades with large deflections. In this presentation, an accurate and effective aeroelastic modeling and aeroelastic response analysis method suitable for composite blades undergoing large deflections is introduced. The method is developed by combining the geometrically exact nonlinear structural model and unsteady aerodynamic model,and its accuracy is verified by the correlations between the predicted results and experimental data.

报告人简介:

尚丽娜,讲师,20181月于南京航空航天大学获得博士学位,主要从事直升机复合材料旋翼桨叶气弹分析及优化设计等方面研究。