...
首页> 外文期刊>Sensors and Actuators, A. Physical >Development of phased array ultrasonic system for detecting rail cracks
【24h】

Development of phased array ultrasonic system for detecting rail cracks

机译:检测轨裂纹阵列超声波系统的研制

获取原文
获取原文并翻译 | 示例
           

摘要

In this study, a phased array ultrasonic system for detecting rail cracks (PAUSR) was developed which consists of two phased array (PA) ultrasonic transducers, a water tank, a display monitor, a battery, a commercial 64 channel PA board, and its control software. To accomplish this, the acoustic fields and crack detection images of newly developed PA ultrasonic transducers were simulated and analyzed by the CIVA (CIVA 2016, NDE CIVA, USA) software. The major design factors for the PAUSR is the capability of evaluating crack size (over 2 mm), generating proper acoustic fields in the rail and easy and safe handling for operators. For the performance test of the designed PA ultrasonic transducer, Non-destructive Characterization and Verification of Ultrasonic Phased Array Equipment, Part 2: Probes (EN ISO 18563-2:2017) was conducted. In addition, artificial crack detection images were simulated by the CIVA software, and an experiment under the same CIVA simulation conditions was also performed for comparison purposes. For the last verification, natural defective specimens with bolt-hole star-cracking, longitudinal vertical cracking and welding defects were scanned by the developed PAUSR, and its results were analyzed and compared with the radiographic testing (RT) and CIVA simulation outcomes. (c) 2020 Elsevier B.V. All rights reserved.
机译:在该研究中,开发了一种用于检测轨道裂缝(PAUSR)的分阶段阵列超声波系统,其包括两个相位阵列(PA)超声换能器,水箱,显示器,电池,商业64通道PA板及其控制软件。为了实现这一点,Civa(Civa 2016,NDE Civa,USA)软件模拟和分析了新开发的PA超声换能器的声场和裂纹检测图像。 PAUSR的主要设计因素是评估裂缝尺寸(超过2毫米)的能力,在轨道中产生适当的声场,并轻松安全地处理操作员。对于设计的PA超声换能器的性能测试,超声相控阵设备的无损表征和验证,第2部分:探针(EN ISO 18563-2:2017)。另外,通过Civa软件模拟人工裂缝检测图像,并且还进行了相同的Civa模拟条件下的实验以进行比较目的。对于最后的验证,发达的PAUSR扫描具有螺栓孔星形裂缝,纵向垂直裂缝和焊接缺陷的自然缺陷标本,并与射线照相检测(RT)和Civa模拟结果进行了分析并进行了分析。 (c)2020 Elsevier B.v.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号