大展弦比复合材料机翼几何非线性静气动弹性研究

doi:10.19936/j.cnki.2096-8000.20230428.012

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (4): 78-86.DOI: 10.19936/j.cnki.2096-8000.20230428.012

大展弦比复合材料机翼几何非线性静气动弹性研究

张宝升, 王军利^*, 刘志远, 李金洋, 冯钰茹

陕西理工大学机械工程学院,汉中723000

收稿日期:2022-04-25 出版日期:2023-04-28 发布日期:2023-08-22
通讯作者: 王军利(1977—),男,博士,副教授,主要从事气动弹性方面的研究,wjl503@126.com。
作者简介:张宝升(1997—),男,硕士研究生,主要从事气动弹性方面的研究。
基金资助:
陕西省科学技术厅一般项目(2020JM-600);陕西省教育厅科研项目(19JK0172);陕西省工业自动化重点实验室开放课题(SLGPT2019KF01-13);陕西省自然科学基础研究计划项目(2023-JC-YB-018)

Research on geometric nonlinear static aeroelasticity of high-aspect-ratio composite wing

ZHANG Baosheng, WANG Junli^*, LIU Zhiyuan, LI Jinyang, FENG Yuru

School of Mechanical Engineering, Shaanxi University of Science and Technology, Hanzhong 723000, China

Received:2022-04-25 Online:2023-04-28 Published:2023-08-22

摘要/Abstract

摘要： 气动弹性研究对机翼稳定性提高具有极其重要的意义,目前大尺寸大展弦比复合材料机翼在气动力作用下,会产生较大的弯曲扭转变形,使得几何非线性静气动弹性问题更加突出,导致该类型飞机稳定性大大降低,严重影响飞行安全。基于CFD/CSD双向耦合方法,考虑几何非线性影响,采用N-S控制方程求解大变形下的气动载荷,通过Newton-Raphson迭代法求解非线性结构平衡方程,对大展弦比复合材料机翼大变形几何非线性静气动弹性问题进行了数值分析;通过仿真分析,得到攻角和马赫数对大展弦比复合材料机翼几何非线性静气动弹性变形的结构变化规律,并重点分析这种气动弹性变形对该型机翼的纵向气动特性变化的影响程度。

关键词: 大展弦比复合材料机翼, 大变形, 几何非线性静气动弹性, CFD/CSD双向耦合, 纵向气动特性, 复合材料

Abstract: Aeroelastic research has extremely important significance on the stability of the wing. At present, the large size high-aspect-ratio composite wing under the action of aerodynamic force, can produce large bending torsional deformation, making the geometric nonlinear static aeroelasticity problem become more prominent, greatly reducing the stability of this type of plane and seriously affecting the flight safety. Based on the bi-directional coupling method of CFD/CSD, the aerodynamic load under large deformation was solved by N-S governing equation and the balance equation of nonlinear structure was solved by Newton-Raphson iterative method. The large deformation geometric nonlinear static aeroelastic problem of composite wings with large aspect ratio was numerically analyzed. Through the simulation analysis, the structural variation law of the angle of attack and Mach number on the geometric nonlinear static aeroelastic deformation of the high-aspect ratio composite wing is obtained, and the influence degree of the aeroelastic deformation on the longitudinal aerodynamic characteristics of the wing is analyzed.

Key words: high-aspect-ratio composite wing, large deformation, geometric nonlinear static aeroelasticity, CFD/CSD bi-directional coupling, longitudinal aerodynamic properties, composites

中图分类号:

TB332

张宝升, 王军利, 刘志远, 李金洋, 冯钰茹. 大展弦比复合材料机翼几何非线性静气动弹性研究[J]. 复合材料科学与工程, 2023, 0(4): 78-86.

ZHANG Baosheng, WANG Junli, LIU Zhiyuan, LI Jinyang, FENG Yuru. Research on geometric nonlinear static aeroelasticity of high-aspect-ratio composite wing[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(4): 78-86.

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大展弦比复合材料机翼几何非线性静气动弹性研究

Research on geometric nonlinear static aeroelasticity of high-aspect-ratio composite wing

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