应用数学和力学2025，Vol.46Issue(10)：1267-1284,18.DOI:10.21656/1000-0887.450242
三边夹持下钛合金叶片鸟撞损伤分析和数值模拟研究
Analysis and Numerical Simulation of Bird Impact Damages of 3-Side-Clamped Titanium Alloy Blades
摘要
Abstract
The damages caused by bird impacts on engine fan blades in aircraft is extremely serious.To study these damages to the blades,an experiment was conducted based on a certain type of engine fan blade clamped by fixtures on 3 sides.Then 2 groups of bird-blade impact tests were completed,and the results of blade dama-ges were obtained.Simultaneously,the LS-DYNA software was used to numerically verify the experimental re-sults.A 3-side-clamped blade model for bird impact was established based on the experiment to study the effects of 4 impact conditions on blade damages.The results indicate that,the effects of experimental condi-tions on blade damages are fundamentally due to the energy changes transmitted from the bird body to the blade.As the transmitted energy increases,the damage to the blade will change from a bulge to a crack until fi-nally rupture.Through the study of the damages to the blade in specific impact conditions,the 3-side-clamped blade-bird impact test can effectively simulate a part of the tests on bird impacts on rotating blades.关键词
风扇叶片/鸟撞/数值模拟/光滑粒子流体动力学/叶片损伤Key words
fan blade/bird impact/numerical simulation/smoothed particle hydrodynamics/blade damage引用本文复制引用
王伟灿,罗刚,赵朝君,范兴超,陈伟..三边夹持下钛合金叶片鸟撞损伤分析和数值模拟研究[J].应用数学和力学,2025,46(10):1267-1284,18.基金项目
国家科技重大专项(2017-Ⅳ-0006-0043) （2017-Ⅳ-0006-0043）
