• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2017, Vol. 53 ›› Issue (12): 28-34.doi: 10.3901/JME.2017.12.028

• 承压设备的无损检测与评价 • 上一篇    下一篇

相控阵超声水浸C扫描自动检测系统的研制

周正干1,2, 李文涛1, 李洋1, 高翌飞3   

  1. 1. 北京航空航天大学机械工程及自动化学院 北京 100191;
    2. 北京航空航天大学先进航空发动机协同创新中心 北京 100191;
    3. 中国船级社 北京 100007
  • 出版日期:2017-06-20 发布日期:2017-06-20
  • 作者简介:

    周正干,男,1967年出生,博士,教授。主要研究方向为超声无损检测和计算机测控技术等。曾获航天工业总公司科技进步二等奖,发表论文120余篇。

    E-mail:zzhenggan@buaa.edu.cn

  • 基金资助:
    * 国家自然科学基金(51375027)和国家科技支撑计划(2014BAF12B01)资助项目; 20161009收到初稿,20170310收到修改稿;

Development of Ultrasonic Phased Array Immersion C-Scan Automatic Detection System

ZHOU Zhenggan1,2, LI Wentao1, LI Yang1, GAO Yifei3   

  1. 1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191;
    2. The Collaborative Innovation Center for Advanced Aero-Engine, Beihang University, Beijing 100191;
    3. China Classification Society, Beijing 100007
  • Online:2017-06-20 Published:2017-06-20

摘要:

采用常规超声水浸C扫描检测系统检测工件时,为了得到较好的检测精度,一般采用较小的扫描步距,检测效率低,同时换能器聚焦深度不能改变,灵活性差。为了提高超声水浸C扫描检测的检测速度、检测适用范围及灵活性,采用相控阵电子线性扫描及其成像算法,结合三自由度机械扫描架,研制了相控阵超声水浸C扫描检测软硬件系统。采用64阵元的相控阵超声换能器分别对铝合金平板、钛合金增材制造试样进行了检测试验,对检测系统的性能进行了初步验证。试验结果表明,所研制的系统相对于常规超声水浸C扫描系统的检测效率和检测能力均有较大提升。

关键词: 检测系统, 水浸C扫, 相控阵超声, 无损检测

Abstract:

The conventional ultrasonic water immersion C-Scan system has disadvantages such as small scanning step distance, low efficiency and inflexibility because the fixed focal depth transducer are adopted. To improve the detection efficiency and applicability of ultrasonic water immersion C-Scan system, the software and hardware of ultrasonic phased array water immersion C-Scan system is developed which based on the electronic linear scanning method and imaging algorithm combined with the three degree-freedom mechanical scanning device. A phased array transducer with 64 elements is used to detect the imperfections of aluminum alloy plate and additive manufactured titanium alloy and evaluate the performance of the detection system. The results show that the developed system has greatly improved the detection efficiency and the detection ability compared to the conventional ultrasonic water immersion C-Scan system.

Key words: detection system, immersion C-Scan, ultrasonic phased array, non-destructive testing(NDT)