2) transient magnetic field
暂态磁场
1.
An efficient formula is derived from Maxwell equations for calculating the transient magnetic field inside the high buildings struck by lightning.
从时变电磁场泛定方程和动态矢量位出发 ,推导出高层建筑物内雷电暂态磁场的计算公式。
3) transient electric field
暂态电场
1.
Analysis of transient electric field in converter transformer;
换流变压器内部暂态电场分析
4) transient temperature field
暂态温度场
1.
According to the special structure of tractive PMSM for elavator, in this paper the mathematical model of the 3D transient temperature field for the motor in the state of steady electromagnetic field is established, and basic assumptions and boundary conditions of the solved region are presented.
针对电梯曳引交流永磁同步电机的特殊结构,根据传热学理论建立其电磁稳态运行条件下的三维暂态温度场的计算数学模型,给出求解域内的基本假设及相应的边界条件,根据电磁场计算,确定定子铁心与磁极区域的损耗热源分布。
2.
According to calorifics theory,a mathematical model of 3D transient temperature field for a direct driving low speed permanent magnet torque motor was established,where hypothetical and boundary conditions of the solved region were presented.
根据传热学理论,针对直驱式低速永磁力矩电动机建立了三维暂态温度场的计算数学模型,并给出了求解域内的边界条件。
3.
The result of test and calculation show that the method with FEM and FDM is an effective method to calculate the transient temperature field and short-term ampacity of underground cables in engineering.
利用有限差分法将地下电缆群暂态过程分为离散的时间步,然后利用有限元法分析每一时间步的地下电缆群温度场分布,给出了土壤直埋电缆群的暂态温度场分布。
5) transient radiation field
暂态辐射场
1.
A new method is proposed to calculate transient radiation field from the metallic enclosure of gas insulated substation (GIS).
提出了一种计算气体绝缘变电站(GIS)金属外壳暂态辐射场的新方法:首先运用矢量匹配法对用NEC计算的频域格林函数进行拟合,拟合结果在时域内表示为指数函数和的形式;然后利用递归卷积在时域内直接计算实际输入下的辐射场。
2.
The thin-line model and surface-patch model of the substation are created via the code of NEC and FEKO, respectively, and the transient radiation fields from the metallic enclosure of GIS due to switching operation are calculated.
本文基于NEC 和FEKO 两个电磁场数值计算软件分别对GIS 整体结构建立了细线模型和面模型,计算了GIS 内金属外壳由隔离开关操作产生的暂态辐射场,并应用矢量匹配结合递归卷积的方法代替FFT 和IFFT,从而避免了FFT 的常规问题。
6) transient seepage field
暂态渗流场
1.
The mechanism of rainfall-induced landslides can be traced to the change of the slope’s transient seepage field which caused by rainfall, it will effect the matric suction field, soil bulk density field and underground dynamic water pressure field and finally may influence the stability of the slope.
降雨诱发滑坡的机理,可根溯为降雨导致边坡体暂态渗流场的变化,进而引起边坡系统基质吸力场、土体容重场及地下动水压力场的改变,从而影响边坡的稳定性。
补充资料：变电所快速暂态电磁场
变电所快速暂态电磁场
fast transient electro-magnetic fields in substations
变电所中快速暂态电磁场强度由于开关操作暂态过程受多种因素影响.因此变电所中实际测t得到的场强数值分散性较大。不同电压等级变电所，用不同型式开关，实测得到的电场强度可达数十千伏/米(kV/m).磁场强度可达数百安培/米(A/m).美国对变电所中操作暂态电磁场的实测工作做的较多。作为一个例子，下表列出了美国电力研究院(EPRI)在115kV、250 kV、500 kV变电所中的实测结果。常规变电所内测点在母线下方地面，操作是断开一段短母线，一川纵潮洲娜朋洲川一0 0 0 0 0 00411:1l)即10 010加 ︵任守︸侧欲典匆 6 .0臼.《】火l()《a)T(5、留一。·““nlj 0 50几00 .，0.1 10 (任/A艺侧蔽2.()魂.硬)丫﹂)()口匕t卜卜片卜f乙仁0 t 0 0 0 0 005 .....-卜闭40加020化 (‘/V)侧旧要翻，::.:: l二‘.1.吐吐.吐2.《)4.(】6 .0划) 了卜卜┌────┬──────┐│ 一一J │八L，‘一’ ││习 ├──────┤│一一.1 │{犷V一· │└────┴──────┘0﹃-j门1 96，JD.任1 9 tl滩n乙oq乙 ︵三z淤巴侧翻要御 (一。一‘)洲.‘}12‘)一6(，义1‘，一‘， 喊d)T(5) 500 kV变电所内断开隔离开关时 的地面电场和磁场(a)GIS磁场;(b)GIS电场;(e)AIS滋场;(d)AIS电场b一and一onsuo kuolsu zonto一d一onelehong变电所快速暂态电磁场(fast transient elec-tromagnetie fields in substations)变电所中隔离开关切、合短母线时的暂态过程产生的电磁场。高压隔离开关操作时，触头间产生一系列电弧过程。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条