文章摘要
王中亚,刘欣平,史猛,李晓利,闫浩明,赵新玉.柔性相控阵动态聚焦理论与仿真[J].声学技术,2019,38(5):585~589
柔性相控阵动态聚焦理论与仿真
Dynamic focusing theory and simulation study of flexible phased array
投稿时间:2018-06-02  修订日期:2018-07-18
DOI:10.16300/j.cnki.1000-3630.2019.05.017
中文关键词: 柔性相控阵换能器  动态聚焦  时域仿真研究
英文关键词: flexible phase array transducer  dynamic focusing  simulation study in time domain
基金项目:国家重点研究项目(2016YFF0203000)资助。
作者单位E-mail
王中亚 中国大唐集团科学技术研究院有限公司华东分公司, 安徽合肥 230088  
刘欣平 驻北方华安工业集团有限公司代表室, 黑龙江齐齐哈尔 161046  
史猛 驻北方华安工业集团有限公司代表室, 黑龙江齐齐哈尔 161046  
李晓利 驻北方华安工业集团有限公司代表室, 黑龙江齐齐哈尔 161046  
闫浩明 大连交通大学材料科学与工程学院, 辽宁大连 116028  
赵新玉 大连交通大学材料科学与工程学院, 辽宁大连 116028 xyz@djtu.edu.cn 
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中文摘要:
      曲面构件被广泛应用在各个领域的关键部位,一旦出现质量问题将造成不可估量的后果,为确保曲面构件在服役期间安全可靠,对其定期进行无损检测尤为重要。因超声相控阵技术检测灵敏度高、速度快,适用于曲面构件的快速检测,特别是柔性相控阵换能器的成功研制满足了复杂曲面构件的检测需求,但目前仍缺乏相应的理论支撑。因此,提出了复杂曲面柔性相控阵动态聚焦理论,并建立有限元声场时域仿真模型。结果表明,基于所提出的聚焦理论,采用柔性相控阵换能器可解决复杂曲面构件内部微小缺陷检测难题,为柔性相控阵换能器参数设计提供了理论依据,推动了柔性相控阵换能器的应用与发展。
英文摘要:
      Curved workpieces are widely used in the key parts of various fields, once quality problems arise, it will cause incalculable consequences. In order to ensure the safety and reliability of the curved workpieces during service, it is particularly important to carry out non-destructive testing regularly. The ultrasonic phased array technology is suitable for the rapid detection of curved workpieces due to its high sensitivity and high speed. Especially, the flexible phased array transducer has been successful developed to meet the needs of complex curved workpiece detection, but there is still a lack of corresponding theoretical support. Therefore, a dynamic focusing theory of flexible phased array with complex curved surface is presented in this paper, and a finite element sound field model in time domain is established for simulation. The results show that based on the proposed theory, the flexible phased array transducer can solve the problem of small defect detection in complex curved workpieces, which provides a theoretical basis for the parameter design of flexible phased array transducers and promotes its application and development.
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