Aeroelastic analysis and structural parametric design of composite rotor blade

作     者：Li MA Qijun ZHAO Kai ZHANG Xiayang ZHANG Mengmeng ZHAO Li MA;Qijun ZHAO;Kai ZHANG;Xiayang ZHANG;Mengmeng ZHAO

作者机构：National Key Laboratory of Science and Technology on Rotorcraft AeromechanicsNanjing University of Aeronautics and AstronauticsNanjing 210016China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2021年第34卷第1期

页      面：336-349页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0825[工学-航空宇航科学与技术] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Aeroelastic stability Composite material Cross-section analysis Hub loads Inverse design Rotor 

摘      要：Based on FEM theory,a method of dynamic analysis for hingeless rotors considering anisotropic composite materials is established.A parametric modeling method of composite blade with typical profile and high simulation degree for design is *** the finite element method,the profile characteristics of rotor blade can be obtained efficiently and accurately,and the synchronization of parametric design and finite element analysis of structural characteristics can be *** a 23-degrees of freedom non-linear beam element is used to simulate the extended one-dimensional beam,thereby a nonlinear differential equation describing the elastic motion of the rotor is *** obtain the crosssectional target characteristics of the blades,an inverse design method is proposed for cross-section components based on combinatorial optimization *** calculation and validation work show that the proposed model can effectively analyze the aeroelastic characteristics of general composite ***,the influence of cross-sectional parameters on the aeroelastic stability and hub loads of hingeless rotor is analyzed and some remarkable conclusions are obtained.