Aeroelastic analysis and structural parametric design of composite rotor blade

被引：13

作者：

Ma, Li ^{[1
]}

Zhao, Qijun ^{[1
]}

Zhang, Kai ^{[1
]}

Zhang, Xiayang ^{[1
]}

Zhao, Mengmeng ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Natl Key Lab Sci & Technol Rotorcraft Aeromech, Nanjing 210016, Peoples R China

来源：

CHINESE JOURNAL OF AERONAUTICS | 2021年 / 34卷 / 01期

关键词：

Aeroelastic stability; Composite material; Cross-section analysis; Hub loads; Inverse design; Rotor; STABILITY; FLOW;

D O I：

10.1016/j.cja.2020.09.055

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

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 proposed. Through 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 realized. Then 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 established. To obtain the crosssectional target characteristics of the blades, an inverse design method is proposed for cross-section components based on combinatorial optimization algorithm. The calculation and validation work show that the proposed model can effectively analyze the aeroelastic characteristics of general composite rotors. Further, the influence of cross-sectional parameters on the aeroelastic stability and hub loads of hingeless rotor is analyzed and some remarkable conclusions are obtained. ? 2020 Production and hosting by Elsevier Ltd. on behalf of Chinese Society of Aeronautics and Astronautics. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

引用

页码：336 / 349

页数：14

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