管道内压力对纵模导波传播特性的影响

中国机械工程

管道内压力对纵模导波传播特性的影响

蔡海潮1;徐春广2;王东峰3;尚振东1

1.河南科技大学机械装备先进制造河南省协同创新中心，洛阳,471003
2.北京理工大学机械与车辆学院，北京,100081
3.洛阳轴研科技股份有限公司，洛阳,471039

出版日期:2017-12-10 发布日期:2017-12-08
基金资助:
国家重大科技专项（2011ZX04014-081）
National Science and Technology Major Project （No. 2011ZX04014-081）

Effects of Pipe Pressures on Longitudinal Mode Guided Wave Propagations

CAI Haichao1;XU Chunguang2;WANG Dongfeng3;SHANG Zhendong1

1.Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing, Henan University of Science and Technology, Luoyang,Henan,471003
2.School of Mechanical Engineering, Beijing Institute of Technology,Beijing,100081
3.Luoyang Bearing Science & Technology Co., Ltd., Luoyang,Henan,471039

Online:2017-12-10 Published:2017-12-08
Supported by:
National Science and Technology Major Project （No. 2011ZX04014-081）

摘要/Abstract

摘要： 工程应用中的管道内部往往存在一定的介质，这些介质会对管内壁产生一定的压力，研究超声导波技术对管道进行检测时，介质产生的压力对超声导波传播特性的影响非常重要。采用数值模拟方法研究了管道内液体介质压力对超声导波传播的影响，分析了不同激励频率和不同介质压力时的导波衰减特性，并搭建了压力管道实验系统。实验结果表明，超声导波在管道内传播时传播速度不随管内压力的变化而变化。

关键词: 管道, 压力, 纵模导波, 传播特性

Abstract: In engineering applications, the internal walls of pipelines tended to have mediums, which might produce pressures on the pipeline walls. When the ultrasonic guided wave technique was revealed to detect these pipelines, medium pressures whether or not to have effects on the propagation characteristics of ultrasonic guided wave were a very important problem. Liquid medium pressures in the pipelines were studied herein on the influences of ultrasonic guided wave propagation through numerical simulation method, guided wave attenuation properties in the different excitation frequencies and medium pressures were analyzed, and pressure pipeline experimental system was set up. The experimental results show that the ultrasonic guided wave propagation in the pipes does not change with the changes of inside pressures.

Key words: pipe, pressure, longitudinal mode guided wave, propagation characteristics

中图分类号:

TB599

蔡海潮1;徐春广2;王东峰3;尚振东1. 管道内压力对纵模导波传播特性的影响[J]. 中国机械工程.

CAI Haichao1;XU Chunguang2;WANG Dongfeng3;SHANG Zhendong1. Effects of Pipe Pressures on Longitudinal Mode Guided Wave Propagations[J]. China Mechanical Engineering.

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