Ferromagnetic materials are the constituent materials of important parts in high-speed trains.The trend of increasing speed and heavy load of rail vehicles is putting forward higher requirements for the safety inspection of wheel-to-peer walking parts.Magnetic memory testing technology is one.A sensitive and convenient non-destructive testing technology,in order to make magnetic memory detection technology widely used in the early detection of wheelset early faults,it is necessary to further study the magnetic memory signal characteris-tics of high-iron wheel pair materials.The magnetic memory signals collected on the four parallel paths are spatially interpolated by the in-verse distance weighting method,and the one-dimensional magnetic memory signals are extended to the three-dimensional space,so that the characteristic parameters of the traditional magnetic memory signals are obtained in the form of partial and total guidance of the curved surfaces.The eigenvalue of the magnetic memory signal that evolved into the spatial domain.It has paved the way for the rapid identification of early faults in high-speed train wheels,and has reference value for the application of magnetic memory testing technology in the field of high-speed train online detection.
关键词
石化管道/铁磁性材料/磁记忆检测/反距离加权/三维插值
Key words
Construction machinery/Ferromagnetic material/Magnetic memory detection/Inverse distance weighting/Three-dimen-sional interpolation
万方数据