通信与信息技术Issue(4)：22-26,5.
基于多模态压气机叶片疲劳裂纹扩展模拟
Simulation of fatigue crack propagation based on multimodal compressor blades
摘要
Abstract
The compressor blades of aircraft engines operate under extreme multi physics coupling conditions of high temperature,high pressure,and strong vibration.The complex interactions between aerodynamic forces,centrifugal stress,and thermal gradients signif-icantly accelerate the propagation of fatigue cracks.Traditional research often relies on simplified single load or isothermal models,which have certain limitations.To address this issue,this study employed a coupled simulation method combining FRANC3D and ANSYS to sys-tematically investigate the temperature dependent crack evolution patterns on the surface of airfoil sections under different loads.Experi-mental verification revealed three key findings:(1)significant differences in crack propagation trajectories under aerodynamic and centrif-ugal loading conditions at ambient temperature,with typical unidirectional torsional deformation observed under single load conditions;(2)Under coupled loads,the crack propagation path induced by the competitive stress field aligns with the vector cancellation of the load component,forming a composite propagation path;(3)Under high temperature conditions,the thermal coupling effect reverses the crack propagation direction under low temperature single load conditions,significantly changing the crack behavior.These findings provide im-portant insights into the synergistic effects of multi physics interactions on the fatigue fracture mechanism of turbomachinery components.This study systematically investigated the crack propagation behavior of compressor blades under multimodal loads through coupling sim-ulation methods,revealing the significant influence of temperature and multiphysics coupling on crack propagation paths,providing theo-retical support for the design and reliability evaluation of aircraft engines.Future work will combine experimental data with deep learning algorithms to predict crack propagation processes,thereby improving the applicability and accuracy of research.关键词
多模态/ANSYS/FRANC3D/裂纹扩展Key words
Multimodal/ANSYS/FRANC3D/Crack growth分类
航空航天引用本文复制引用
崔琨,廖宇,崔益博,胡钰航,李景聪..基于多模态压气机叶片疲劳裂纹扩展模拟[J].通信与信息技术,2025,(4):22-26,5.基金项目
国家自然科学基金项目"大跨径钢砼桥梁多模态裂缝-腔体时空演化机理及损伤识别预测"(项目编号:62263010) （项目编号:62263010）
