汽轮机叶片叶身的涡流检测

详细信息

Eddy current testing of steam turbine blade body

1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
2. Shandong Key Laboratory of Mining Mechanical Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
3. College of Transportation, Shandong University of Science and Technology, Qingdao 266590, China;
4. College of Computer Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China

摘要: 为了能够发现汽轮机叶片的早期裂纹，以2Cr12NiMoWV不锈钢为研究对象，设计了一种手持式涡流探头，并对其检测不同深度以及不同宽度裂纹的性能进行试验研究，同时使用COMSOL Multiphysics软件进行了有限元分析。结果表明，与缺陷宽度的变化相比较，该装置对于缺陷深度的变化具有更高的灵敏度，为后续手持式涡流传感器对复杂曲面构件的在线无损检测提供了理论依据和技术支持。
- 汽轮机叶片叶身 /
- 涡流检测 /
- 有限元仿真 /
- 缺陷
Abstract: In order to find the early cracks of steam turbine blade, 2Cr12NiMoWV stainless steel was taken as the research object. A kind of hand-held probe by using eddy current technology was designed and its performance in different crack depth and crack width was studied. At the same time, COMSOL Multiphysics was used to carry out finite element analysis. Experimental results show that compared with the change of defect width, the device has higher sensitivity to the change of defect depth, which provides theoretical basis and technical support for the subsequent online hand-held eddy current sensor nondestructive testing of complex surface.
- steam turbine blade body /
- eddy current testing /
- finite element simulation /
- defect

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