Numerical simulation of bird impact on solid-element hollow blades by using fluid-solid coupling method

LIU Jian-ming; JIANG Xiang-hua; QIN Yin-lei; WANG Yan-rong

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Numerical simulation of bird impact on solid-element hollow blades by using fluid-solid coupling method

更新时间：2026-07-07

- Numerical simulation of bird impact on solid-element hollow blades by using fluid-solid coupling method
- Vol. 25, Issue 10, (2010)
- 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,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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LIU Jian-ming, JIANG Xiang-hua, QIN Yin-lei, et al. Numerical simulation of bird impact on solid-element hollow blades by using fluid-solid coupling method[J]. 2010, 25(10).
DOI：

LIU Jian-ming, JIANG Xiang-hua, QIN Yin-lei, et al. Numerical simulation of bird impact on solid-element hollow blades by using fluid-solid coupling method[J]. 2010, 25(10). DOI：

摘要

针对目前通用流固耦合算法在模拟实体元结构破坏上存在不足

以MSC.Dytran软件为平台

研究和验证了不考虑失效和考虑失效的实体元平板叶片流固耦合数值模拟方法;在此基础上

结合大涵道比航空发动机工作过程中较为常见且非常严重的鸟撞事故

建立了实体元空心叶片鸟撞瞬态动力学有限元模型并进行相应计算

结果表明:计算较好地模拟了叶片在遭受鸟体撞击后会产生巨大的瞬时冲击应力

以及叶片由此产生局部塑性变形.最后模拟了叶片遭受鸟撞发生失效的过程.

Abstract

In view of the shortages of current fluid-solid coupling arithmetic in simulating the failure of solid-element structures

fluid-solid coupling numerical simulation methods of solid-element flat blade were studied and validated with MSC.Dytran software while considering its integrity and failure.On this basis

in combination with very common and serious bird impact accidents in the working process of high bypass ratio aero-engines

Finite element method(FEM) model of the solid-element hollow blades with transient dynamic load for bird impact was established and the corresponding calculation was performed.Result shows that

huge instantaneous impact stresses will occur in the blades after bird strike

leading to local plastic deformation of the blades.The failure process of the blades after bird strike was simulated finally.

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Related Institution

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

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

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室

School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics

Collaboration Innovation Center for Advanced Aero-Engine

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