CAJ | 학술논문

针对工程中铁磁物体磁化率难以确定的问题，以单元表面积分铁磁物体感应磁场模型为基础，利用磁场测量值建立了多维磁化率数学优化模型，并运用具有全局多维寻优能力的进化差分算法对多维磁化率数学模型进行了求解，进而确定了铁磁物体的感应磁场分布。最后，设计了空心圆筒磁测实验，实验结果表明：该方法能有效获取铁磁物质多维磁化率，还能精确计算铁磁物体的感应磁场分布。
침대공정중철자물체자화솔난이학정적문제，이단원표면적분철자물체감응자장모형위기출，이용자장측량치건립료다유자화솔수학우화모형，병운용구유전국다유심우능력적진화차분산법대다유자화솔수학모형진행료구해，진이학정료철자물체적감응자장분포。최후，설계료공심원통자측실험，실험결과표명：해방법능유효획취철자물질다유자화솔，환능정학계산철자물체적감응자장분포。
To overcome the difficulty in determining the magnetic susceptibility of ferromagnetic ob-jects in engineering,a multi-dimensional optimizing model for magnetic susceptibility is established by use of the measured data of magnetic field based on the element surface integral method for calculating the induced magnetic field of ferromagnetic objects.And the differential evolution algorithm which has the advantage of global multi-dimensional optimization is introduced to solve for the model so as to de-termine the distribution of the induced magnetic field of ferromagnetic objects.The designed magnetic-field measurement experiment for a hollow cylinder proves that the multi-dimensional magnetic suscep-tibility and the induced magnetic field of ferromagnetic objects can be calculated efficiently and accu-rately.