| 周明,黄新敬,陈乾,燕玉田,李健,张宇.基于弱交流磁化的钢材应力检测方法研究*[J].电子测量与仪器学报,2021,35(11):23-31 |
| 基于弱交流磁化的钢材应力检测方法研究* |
| Research on steel stress measurement based on weak AC magnetization |
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| DOI： |
| 中文关键词: 磁弹效应 弱交流磁化 钢板 应力 |
| 英文关键词:magneto elastic effects weak AC magnetization steel plate stress |
| 基金项目:国家自然科学基金(62073233, 61773283)项目资助 |
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| Author | Institution |
| Zhou Ming | National Pipeline Network Group Eastern Crude Oil Storage and Transportation Co., Ltd., Xuzhou 221008, China; |
| Huang Xinjing | State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China |
| Chen Qian | State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China |
| Yan Yutian | State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China |
| Li Jian | State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China |
| Zhang Yu | State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China |
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| 全文下载次数: 987 |
| 中文摘要: |
| 定期对工业领域中的铁磁性构件进行应力检测可确保工业设备安全工作。提出了一种弱交流磁化条件下的基于磁弹效应的钢材应力检测方法。首先通过有限元仿真研究了弱交流磁化条件下的钢板力磁关系，并优化了测点位置。其次针对不同热磁处理钢板开展了弱交流磁化条件下的钢板应力磁测实验。结果表明，钢板表面法向弱交流感应磁场在不同频率下均具有良好的应力敏感特性；弹性应力变化范围为0～167 MPa时，钢板表面法向弱交流感应磁场幅值与应力之间具有近似线性单调的关系；消磁和热处理可以有效改善相同尺寸钢板的力磁关系的一致性；弱交流磁化条件下的应力磁测方案具有非接触、良好的一致性和抗背景磁场干扰等优势。 |
| 英文摘要: |
| Regular stress detection for the ferromagnetic components in the industrial field can ensure the safety of industrial equipment. This paper proposes a method of steel stress measurement based on magneto elastic effects under weak alternating current (AC) induction magnetic field. Firstly, the magnetic stress relationship of steel plates under weak AC magnetization condition is studied through finite element simulations and the position of the measuring point is optimized. Then the stress measurement experiment for different thermomagnetic treated steel plates is carried out under weak AC magnetization condition. Results demonstrate that the normal weak AC induction magnetic field near the steel plate surface under different frequencies has noticeable stress sensitive characteristics, when the elastic stress varies from 0 MPa to 167 MPa, the normal weak AC magnetic field amplitude on the surface of the steel plate has an approximately linear monotonic relationship with the stress, demagnetization and heat treatment can effectively improve the consistency of the stress magnetic relationship of the same size steel plate, the weak AC magnetization condition has non contact, good repeatability and ability of stress measurement to resist background magnetic interference. |
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