Model of rotor aeroelastic stability using dynamics of flexible multbody systems

YU Zhi-hao; YANG Wei-dong; DENG Jing-hui; ZHANG Cheng-lin

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Model of rotor aeroelastic stability using dynamics of flexible multbody systems

更新时间：2026-07-07

- Model of rotor aeroelastic stability using dynamics of flexible multbody systems
- Vol. 27, Issue 5, (2012)
- 作者机构：
  
  1. 南京航空航天大学航空宇航学院直升机旋翼动力学重点实验室,南京,210016
  2. 中国直升机设计研究所直升机旋翼动力学重点实验室,江西,景德镇,333001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
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YU Zhi-hao, YANG Wei-dong, DENG Jing-hui, et al. Model of rotor aeroelastic stability using dynamics of flexible multbody systems[J]. 2012, 27(5).
DOI：

YU Zhi-hao, YANG Wei-dong, DENG Jing-hui, et al. Model of rotor aeroelastic stability using dynamics of flexible multbody systems[J]. 2012, 27(5). DOI：

摘要

针对无轴承等先进旋翼结构特点

建立了基于柔性多体系统动力学方法的旋翼气弹分析模型.旋翼各构件建模相互独立

便于组成不同构型旋翼

适合于新构型旋翼气弹分析.分析模型集成了适合于旋翼气弹分析的隐式大变形桨叶模型

构件动力学方程增加了铰链动力学方程

统一约束方程形式

改进了角运动约束方程

避免连续旋转引起的奇点问题.应用分析模型计算无铰式旋翼和无轴承旋翼的气弹稳定性

分析结构参数对旋翼气弹稳定性的影响.分析结果表明模型能准确计算结构弹性变形的耦合及非线性

提高旋翼气弹稳定性分析精度.

Abstract

Aeroelastic model of rotor was developed using dynamics of flexible multibody systems.The modeling of components of rotor was independent

so different rotor configurations can be modeled and the model was appropriate for new configuration rotor aeroelastic analysis.A large deflection beam model

suitable for aeroelastic analysis of rotor

was incorporated.To simplify the form of constraint equations

dynamic equations of component including a joint were deduced.To avoid singularities for large rotations

the angular constraint equations

expressed by Rodriguez parameters

were modified by introduced a nominal motion.To verify the correctness of the developed method

the aeroelastic analysis of helicopter rotor and influence study of blade structure parameters were implemented.It demonstrates that the method is very useful for improving computation precision of aeroelastic stability.

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Related Author

LIU Shi-ming

YANG Wei-dong

YU Zhi-hao

WU Jie

LIU Yang

XIANG Jin-wu

Xinyu ZHANG

Baofeng TU

Related Institution

National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics

School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics

College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics

National Laboratory of Science and Technology on Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics

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