压缩机叶轮叶根缺陷相控阵超声检测方法研究

中国机械工程 ›› 2015, Vol. 26 ›› Issue (18): 2436-2441.

压缩机叶轮叶根缺陷相控阵超声检测方法研究

朱学耕;董世运;徐滨士

装甲兵工程学院,北京,100072

出版日期:2015-09-25 发布日期:2015-09-23
基金资助:
国家重点基础研究发展计划(973计划）资助项目(2011CB013403,2011CB013405）

Research on Phased Array Ultrasonic Methods for Defect Detection of Compressor Impeller Blade Root

Zhu Xuegeng;Dong Shiyun;Xu Binshi

Academy on Armored Force Engineering,Beijing,100072

Online:2015-09-25 Published:2015-09-23
Supported by:
National Program on Key Basic Research Project (973 Program)（No. 2011CB013403,2011CB013405）

摘要/Abstract

摘要：

压缩机叶轮叶根易出现疲劳裂纹、气孔等内部缺陷。基于超声脉冲反射法原理，利用相控阵超声检测技术，采用声线模型对缺陷检测位置进行分析,并通过声场分布模拟以及缺陷检测模拟优化实验方案,最后利用聚焦扫描对人工预置平底孔缺陷进行检测。检测结果表明：利用相控阵超声检测技术在叶轮内腔对叶根进行检测，缺陷信号明显，缺陷定位精度高，定位误差仅为0.19%。

关键词: 叶轮；叶根；相控阵超声, 缺陷检测

Abstract:

Compressor impeller blade root was easy to occur fatigue cracks, holes and other internal defects.Based on the principles of ultrasonic pulse reflection and phased array ultrasonic method,the testing positions of blade root defects were analysed by voice model,and the experimental plan was optimized with sound field simulation and defect testing simulation.An experiment of artificial flat bottom hole defect testing was made by focus scanning.The results show an evident defect signal of blade root is found by phased array ultrasonic testing when scanning through impeller internal.The defect location error is only 0.19% which shows a high accuracy.

Key words: impeller;blade root;phased , array , ultrasonic;defect testing

中图分类号:

TG115.28

朱学耕, 董世运, 徐滨士. 压缩机叶轮叶根缺陷相控阵超声检测方法研究[J]. 中国机械工程, 2015, 26(18): 2436-2441.

Zhu Xuegeng, Dong Shiyun, Xu Binshi. Research on Phased Array Ultrasonic Methods for Defect Detection of Compressor Impeller Blade Root[J]. China Mechanical Engineering, 2015, 26(18): 2436-2441.

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