Numerical simulation of bird impact on bladed rotor stage by fluid-solid coupling method

JIANG Xiang-hua; WANG Yan-rong

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Numerical simulation of bird impact on bladed rotor stage by fluid-solid coupling method

更新时间：2026-07-07

- Numerical simulation of bird impact on bladed rotor stage by fluid-solid coupling method
- Vol. 23, Issue 2, (2008)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院航空发动机数值仿真研究中心,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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JIANG Xiang-hua, WANG Yan-rong. Numerical simulation of bird impact on bladed rotor stage by fluid-solid coupling method[J]. 2008, 23(2).
DOI：

JIANG Xiang-hua, WANG Yan-rong. Numerical simulation of bird impact on bladed rotor stage by fluid-solid coupling method[J]. 2008, 23(2). DOI：

摘要

利用MSC.DYTRAN软件建立了鸟撞航空发动机叶片转子级瞬态动力学有限元模型

采用流固耦合算法

模拟受气动和离心载荷作用并稳定旋转的发动机转子叶片

遭受不同鸟体撞击的瞬态响应过程.计算结果表明:鸟体撞击会使叶片产生巨大的瞬时冲击应力;鸟体速度、密度和尺寸的增加

将迅速增加叶片的冲击应力峰值

当叶片硬化和变形能力达到充分发展后

冲击应力峰值的增加速度会变慢;同时

叶片材料静态硬化模量的增加也会提高冲击应力峰值

而静态屈服强度的增加则会减小冲击峰的作用时间.最后还进一步模拟了鸟撞使叶片发生失效破坏的过程.

Abstract

An aeroengine rotor stage finite element method(FEM) model with aerodynamic load and constant rotational speed was studied by using fluid-solid coupling method with MSC.DYTRANsoftware in this paper to investigate its transient dynamic response while suffering various bird impacts.Results show that great instantaneous impact stress exists in the blades during the swift impact.The peak stress will rapidly increase if the velocity

density and size of the bird increase;nevertheless this ascendant tendency can be blunted after the potential of material hardening and deformation abilities have sufficiently developed.The result also reveal that raising hardening modulus of the blade material can increase the impact stress as well

whereas raising material yield strength will reduce the action time of impact stress.Finally

a more complicated simulation

in which material failure was included

was carried out to investigate the process of blade failure caused by bird impact.

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Related Author

LIU Jian-ming

JIANG Xiang-hua

QIN Yin-lei

WANG Yan-rong

GUI Xing-min

HUANG Jin-ping

REN Xing-min

YU Lian-chao

Related Institution

Aeroengine Numerical Simulation Research Centre, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

Institute of Vibration Engineering, Northwestern Polytechnical University

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

National Key Laboratory of Rotorcraft AeromechanicsNanjing University of Aeronautics and Astronautics

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

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