Szulim Przemysław, Gontarz Szymon
Institute of Vehicles and Construction Machinery, Warsaw University of Technology, 02-524 Warsaw, Poland.
Materials (Basel). 2021 Mar 23;14(6):1576. doi: 10.3390/ma14061576.
Currently, to realize the reliable operation and proper exploitation of complex machines and structures, information regarding the material condition must be obtained. This information should ideally be acquired in a noninvasive manner. In addition, contemporary rapid technological development is conducive to the research and advancement of new methods, including magnetic methods. This publication describes the methods that can enable the extraction of information from the magnetic field, which is valuable for determining the material effort state and performing technical diagnostics. The issue of using the magnetic field to assess the technical condition of structures is a promising trend in technical diagnostics. Moreover, new ways to process the magnetic field information are being identified to connect the observed surface changes in the magnetic field with the significant diagnostic symptoms. This work provides an extensive introduction to the theoretical basis and diagnostic techniques based on measurements of the magnetic field obtained in close proximity to the structure of interest. The key limitations of the method and associated possibilities are highlighted. The model considerations were taken into account to provide a mathematical description of the extraction process and possible interpretations of the acquired signals. According to the received guidelines, the plan and implementation of two experiments are described along with the obtained results, which demonstrated the possibility of identifying valuable information that can be used to determine the state of the material stress and perform diagnostics of steel structures.
目前，为了实现复杂机器和结构的可靠运行及合理利用，必须获取有关材料状况的信息。理想情况下，这些信息应以非侵入性方式获取。此外，当代快速的技术发展有利于新方法的研究与进步，包括磁学方法。本出版物描述了能够从磁场中提取信息的方法，这些信息对于确定材料受力状态和进行技术诊断具有重要价值。利用磁场评估结构技术状况的问题是技术诊断领域一个很有前景的趋势。此外，人们正在寻找处理磁场信息的新方法，以便将观测到的磁场表面变化与重要的诊断症状联系起来。这项工作广泛介绍了基于在感兴趣结构附近获取的磁场测量结果的理论基础和诊断技术。文中强调了该方法的关键局限性及相关可能性。考虑了模型因素，以提供提取过程的数学描述以及对采集信号的可能解释。根据所收到的指导方针，描述了两个实验的计划、实施情况以及所获得的结果，这些结果证明了识别可用于确定材料应力状态和进行钢结构诊断的有价值信息的可能性。
