有限单元法在超声导波检测技术中的应用

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doi:10.6052/1000-0992-18-019

北京工业大学机械工程与应用电子技术学院, 北京 100124

基金项目:

国家重点研发计划 (2018 YFC0809003), 国家自然科学基金 (11772014,51475012) 资助项目.

详细信息

作者简介:
刘增华, 1973年生,2006年于北京工业大学获得机械设计及理论专业博士学位.现任北京工业大学机电学院教授, 博士生导师.兼任中国无损检测学会超声检测专业委员会副主任委员;中国仪器仪表学会设备结构健康监测与预警分会常务理事;《无损检测》《北京工业大学学报》(自然科学版)编委. 主要研究领域有:实验固体力学、超声无损检测与结构健康监测、机械测试理论与技术、现代传感和信号处理技术等.主持国家和省部级科研项目10余项. 合作出版译著1部,在国内外期刊及学术会议上发表和录用学术论文140余篇,获浙江省科学技术奖二等奖一项.

通讯作者:
刘增华

中图分类号:TB55
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出版历程
- 收稿日期:2018-08-28
- 刊出日期:2020-10-08

Application of finite element method in ultrasonic guided waves testing technique

College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

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Corresponding author:LIU Zenghua

摘要

摘要:超声导波检测技术具有对波导结构中的缺陷进行远距离无损检测的能力,多年来一直是无损检测领域关注的热点之一.有限单元法具有对各种复杂动力学问题进行计算的能力,已成为超声导波检测技术研究的重要工具.本文结合超声导波检测技术研究领域中的热点问题,对相关的有限单元法进行了简要综述.介绍了有限单元法的发展及其在多物理场耦合机制下导波的激励与接收、线弹性和黏弹性结构中导波的传播特性、非线性超声导波等多个方面的应用研究情况. 最后,基于超声导波检测技术研究趋势展望了相关有限单元法的未来研究重点和发展方向.
- 有限单元法/
- 数值计算/
- 超声导波/
- 波导/
- 传播特性/
- 无损检测
Abstract:Ultrasonic guided waves have the ability of long-distance nondestructive testing for defects in waveguide structures, and have been one of the hotspots in the field of nondestructive testing for many years. Finite element method (FEM) has the ability to calculate various complex dynamics problems and has become an important tool in the research of ultrasonic guided wave testing technique. Considering the hot issues in the research, a brief review of the relevant FEM is proposed. The development of FEM and its application in the excitation and reception of guided waves under multi-physical coupled field mechanism, the propagation characteristics of guided waves in linear elasticity and viscoelastic structures and nonlinear ultrasonic guided waves are introduced. Finally, the research emphasis and development direction of the relevant FEM in the future is prospected based on the research trend of ultrasonic guided wave testing technique.
- finite element method/
- numerical calculation/
- ultrasonic guided waves/
- waveguide/
- propagation characteristics/
- nondestructive testing

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