金属厚壁结构中深裂纹的重构方法研究

发布时间：2018-02-15 06:48

本文关键词： 厚壁结构深裂纹重构涡流传感器数值仿真　出处：《传感技术学报》2017年11期 　论文类型：期刊论文

【摘要】：为了提高涡流方法检测厚壁结构中深裂纹的检测精度,使用三维涡流程序对涡流信号进行了仿真,通过分析传感器布置方案对检测信号及噪声的影响,提出了基于反面涡流检测信号的深裂纹重构策略,并开发了相应的逆问题反演程序,对重构策略的可行性进行了验证。数值仿真结果表明,所提出的基于反面涡流检测信号的深裂纹重构策略,可有效提高厚壁结构中深裂纹的重构精度,并可用于工程实践。
[Abstract]:In order to improve the accuracy of eddy current method for detecting deep cracks in thick wall structure, the eddy current signal is simulated by using three-dimensional eddy current program. The effect of sensor arrangement on detection signal and noise is analyzed. The reconstruction strategy of deep crack based on the signal of eddy current detection is proposed, and the inverse problem inversion program is developed. The feasibility of the reconstruction strategy is verified. The numerical simulation results show that, The reconstruction strategy of deep crack based on the signal of eddy current detection can effectively improve the reconstruction accuracy of deep crack in thick wall structure and can be used in engineering practice.
【作者单位】：北方民族大学化学与化学工程学院;北方民族大学机电工程学院;
【基金】：国家自然科学基金项目(51667001) 宁夏自然科学基金项目(NZ14100) 北方民族大学科研项目(2014XYZ07);北方民族大学引进人才项目国家民委化工技术基础重点实验室一般科研项目(2017HG06)
【分类号】：TG115.28

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