L型构件R区的超声相控阵检测方法

doi:10.7527/S1000-6893.2013.0048

材料工程与机械制造

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L型构件R区的超声相控阵检测方法

徐娜¹, 周正干¹, 刘卫平², 周晖², 于光²

1. 北京航空航天大学机械工程及自动化学院, 北京 100191;
2. 上海飞机制造有限公司航空制造技术研究所, 上海 200436

收稿日期:2012-05-08 修回日期:2012-07-19 出版日期:2013-02-25 发布日期:2012-08-11
通讯作者: 周正干 E-mail:zzhenggan@buaa.edu.cn
作者简介:徐娜,女,博士研究生。主要研究方向:超声相控阵检测。Tel:010-82313466,E-mail:bjxuna@163.com;周正干,男,博士,教授,博士生导师。主要研究方向:超声无损检测及计算机测控技术。Tel:010-82338668,E-mail:zzhenggan@buaa.edu.cn
基金资助:
国家商用飞机制造工程技术研究中心创新基金

Ultrasonic Phased Array Inspection Method for the Corner of L-shaped Components

XU Na¹, ZHOU Zhenggan¹, LIU Weiping², ZHOU Hui², YU Guang²

1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China;
2. Institute of Aeronautical Manufacturing Technology, Shanghai Aircraft Manufacturing Co.,Ltd., Shanghai 200436, China

Received:2012-05-08 Revised:2012-07-19 Online:2013-02-25 Published:2012-08-11
Contact: 10.7527/S1000-6893.2013.0048 E-mail:zzhenggan@buaa.edu.cn
Supported by:
Fund of National Engineering and Research Center for Commercial Aircraft Manufacturing

摘要/Abstract

摘要：

针对常规超声检测难以胜任L型构件R区检测的问题,开展L型构件的超声相控阵检测方法研究。利用超声相控阵声束灵活可控的优势,制定了线阵换能器检测L型构件R区的检测方案;基于Fermat原理,提出了相控阵检测多层介质的延迟时间计算方法;通过有限差分法数值仿真和检测试验,验证了相控阵检测方案和延迟时间计算方法的正确性;最后,对复合材料L型试样R区进行检测试验,检测结果与实际试样信息基本一致。研究结果表明,所提出的采用线阵换能器检测L型构件R区的检测方法是可行有效的。

关键词: L型构件, 超声相控阵, 无损检测, 线阵换能器, 有限差分

Abstract:

Since the conventional ultrasonic testing approach is not competent for the corner inspection of L-shaped components, an ultrasonic phased array inspection method is studied for this purpose, which has the advantage that the beam can be controlled flexibly. Taking this into consideration, an inspection method of L-shaped components with linear array transducers was proposed. The delay time for the inspection of multilayer media was calculated according to Fermat’s principle. A finite difference numerical simulation and a testing experiment were conducted to verify the scheme of phased array inspection and the method of delay time calculation. Finally, a composite L-shaped specimen was detected and the experimental results were similar to the actual information of the specimen. The results show that it is feasible and effective for the ultrasonic phased array technique to detect the corner of L-shaped components with linear array transducers.

Key words: L-shaped component, ultrasonic phased array, nondestructive testing, linear array transducer, finite difference

中图分类号:

V262
TB553

徐娜, 周正干, 刘卫平, 周晖, 于光. L型构件R区的超声相控阵检测方法[J]. 航空学报, 2013, 34(2): 419-425.

XU Na, ZHOU Zhenggan, LIU Weiping, ZHOU Hui, YU Guang. Ultrasonic Phased Array Inspection Method for the Corner of L-shaped Components[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(2): 419-425.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

L型构件R区的超声相控阵检测方法

Ultrasonic Phased Array Inspection Method for the Corner of L-shaped Components

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