摘要
为分析超声波在航空发动机惯性摩擦焊组件等复杂结构中的传播特性并提高组件内部缺陷检测的有效性,提出一种多物理场耦合时域有限元仿真方法。基于水域与固体域的超声波传播理论,建立了结合多物理场耦合波传播与水浸聚焦声场效应的仿真模型,并通过标准试环件的仿真计算与实验测量进行对比验证。仿真结果与实验数据的对比表明,该方法能够准确模拟复杂结构内超声波的波速及波场分布,并成功应用于某型号压气机盘鼓焊接组件超声检测过程的模拟,可为航空发动机惯性摩擦焊组件超声检测技术优化提供理论依据,有助于提升检测精度与效率。
To investigate the propagation characteristics of ultrasonic waves in complex structures such as inertia friction welded components of aero-engines and to enhance the effectiveness of internal defect detection,a time-domain finite element simulation method based on multiphysics coupling is proposed.A simulation model is developed by combining the theory of ultrasonic wave propagation in fluid and solid domains with the effects of multiphysics wave interaction and water-immersed focused acoustic fields.The model is validated through comparative analysis between simulation results and experimental measurements on standard ring specimens.The comparison demonstrates that the method accurately simulates ultrasonic wave velocity and wave field distribution in complex structures.It is further applied to simulate the ultrasonic inspection process of a specific compressor disk-drum welded component,providing theoretical support for optimizing ultrasonic testing techniques and contributing to improved accuracy and efficiency in the inspection of aero-engine inertia friction welded components.
作者
谭博
耿嘉翼
李岩锴
余旭东
TAN Bo;GENG Jiayi;LI Yankai;YU Xudong(Manufacturing Engineering Department,Aero Engine Corporation of China,Commercial Aircraft Engine Co.,Ltd.,Shanghai 200241;School of Astronautics,Beihang University,Beijing 100191;Beijing Key Laboratory of System Design for Reusable Launch Vehicle,Beijing 100191)
出处
《声学学报》
北大核心
2025年第6期1537-1545,共9页
Acta Acustica
基金
国家自然科学基金项目(12374429,12134002)资助。
关键词
航空发动机
惯性摩擦焊
缺陷
超声检测
Aircraft engine
Inertial friction welding
Defect
Ultrasonic testing
