时变场 meaning in English
time-varying field
Examples
- The resistance and leakage inductance of ten slots are calculated according to the calculation result of non - linear electromagnetic field of the induction machine with compound cage rotor
根据复合笼条转子感应电动机一对极下的非线性时变场的求解结果，计算了10个槽的电阻和漏感。 - The electromagnetic field theory and the variation method is applied to found the 2d mathematics model during the process of starting of the induction machine with compound cage rotor . the dispersion , element analyse and collectivity composing of time - variation field are given
利用电磁场理论和变分法建立了复合笼条转子感应电动机起动时二维电磁场的数学模型，给出了正弦时变场单元分析过程和离散格式以及最终的总体合成方程。 - In this dissertation , the principle of fem in em was discussed , then the pulse radar and three - layered pavements were analyzed with 20 - noded and 4 - noded isoparametric elements respectively . then , corresponding fem programs are compiled in fortran90 . so a forward model was built up to describe the transmitting of electromagnetic in the radar and pavements , according to the system identification method
针对上述情况，本文系统阐述了电磁场有限单元法的基本原理，然后采用二十节点、四节点等参单元分别对pulse雷达实体及三层路面系统进行了静态场和时变场的有限元分析，初步建立了电磁波在三层路面中传播的正演模型，同实测波形相比，模拟效果较好，并用fortran90语言编制了相应的三维、二维有限元程序，具有较好的可读性和可移植性。