1) temperature transient effect
温度暂态效应
1.
The influence of temperature transient effects on zero-polarization characteristics of fiber optic gyroscope(FOG) is analyzed theoretically,and some measures to delete these influences are proposed.
对温度暂态效应影响光纤陀螺零偏特性的机理进行了详细的理论分析,提出了几种消除温度暂态效应对光纤陀螺性能影响的方案,尤其是四极对称缠绕技术对提高光纤陀螺的温度特性具有更为明显的效果。
2) transient effect
暂态效应
3) long-transient effect
长暂态效应
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) lightning transient
雷电暂态效应
1.
Firstly, according to the general model of grounding electrode under lightning transient condition,ATPDraw-grounding-electrode models are built up;secondly,a grounding grid model is established based on an actual 500 kV substation,which is used to simulate the transient process in this substation.
针对变电所受雷击时接地网中地电位分布不均的问题,运用ATPDraw软件仿真分析接地网的雷电暂态效应。
2.
Aim at the asymmetric potential of grounding grid and EMI to relay cabins, resulting in lightning strikes transformer substations, this paper applies EMTP program to simulate the lightning transient process and optimal design the grounding grid.
根据雷电流频率下的接地体通用数学模型搭建了EMTP接地体单元模型,并就某500kV变电所实际接地网建立仿真模型,仿真预测该地网的雷电暂态效应;然后优化设计500kV变电所接地网,给出了相应参考数据。
6) temperature effects
温度效应
1.
Better understanding of the thermomechanical behaviour of the materials subjected to temperature effects is a key issue for the analysis of this kind of applications.
对与温度效应有关的材料的热–力学特征的正确理解是分析该类工程问题的一个关键。
2.
Some problems are studied in detail, including the thermal consolidation problem, the temperature effects on permeability, thermal conductivity and thermal resistivity, thermal volume change of the clay-water system, etc.
分析了温度效应对粘性土介质若干基本力学特性的影响。
3.
Th effect of ADC error on system performance is discussed from four aspect as following:DC characteristic,error source,temperature effects and AC characteristic,and some rectifying measurements are also put forword.
本文主要从直流特性、误差源、温度效应及交流特性等方面 ,详细讨论了ADC误差对系统性能的影响 ,并提出了部分校正措施。
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