磁場鐵心 的英文怎麼說
中文拼音 [cíchǎngtiěxīn]
磁場鐵心
英文
field core-
The form of the stable geomagnetic field is like that of a bar magnet at the center of the earth
穩定地磁場的形狀與地球中心的棒磁鐵的形狀相似。A fluctuating magnetic field is produced in the iron.
鐵心中就產生交變磁場。Axial magnetic field of a new cup type axial magnetic field vacuum interrupter contact with iron plates
鐵心式杯狀縱磁真空滅弧室觸頭磁場特性The axial magnetic field distribution on center surface of contact gap and contact piece are calculated when the current is at peak. it can be found that the intensity of axial magnetic field and radial magnetic field uniformity are strengthened after the iron core is put into, this helps to improve the stability of the vacuum arc
計算了電流峰值時觸頭間隙中心平面和觸頭片上的縱向磁場分佈，可以看出加入鐵芯后縱向磁場強度和徑向磁場均勻性增強，這有利於提高真空電弧的穩定性。Analysis for magnetic field of srm is very complicated since the flux waveforms in different parts of the motor vary with motor phase, stator pole and rotor number, also with the winding connections, etc, which results in the srm losses, especially iron loss calculation difficult. the temperature analysis due to the losses has become a study hot spot
Sr電機鐵心的磁通波形不僅與電機的相數有關，還與定、轉子齒極數、定子繞組連接方式等密切相關，從而使得sr電機磁場分析很復雜，復雜的磁通密度波形導致電機損耗特別是鐵損的計算非常困難。電機的損耗又會引起電機的溫升，因此高性能的sr電機的熱分析也成為目前的研究熱點。Against a prototype which is being produced ， its three dimension end region entity model of stator is established ， and with the aim of simplifying calculation ， the theory of how to simplify entity model is studied ， then the theory is made use of ， and the end region entity model of stator is simplifi - ed ； meshing characteristics of three dimension entity model and shortcomin - gs of end region entity model of stator are studied ， then meshing method of three dimension end region entity model of powerformer stator is studied as well ， and the simplified entity model is meshed with this meshed model ， the distribution of end region magnetic field of stator is analyzed ， and the magnetic field energy and reactance of powerformer end region are calculated and compared with design value because the prototype is being produced ， in this paper ， stator core ， gap and eddy equipment are not taken into consideration ， and this has a little influence on the result ， but through analysis ， the result is proved to be good through the example calculation ， it is known that the method of this paper is useful and through theoretic analysis ， it is proved that end region
針對一臺生產中的樣機，對其建立了定子端部三維實體模型，而且為了達到簡化計算的目的，研究了如何將其簡化的理論，並應用這些理論對樣機定子端部實體模型進行了簡化；研究了三維實體模型的剖分特點和定子端部實體模型存在的缺點，在此基礎之上，研究了對簡化的powerformer定子端部三維實體模型的剖分方法，並且對簡化的實體模型進行了剖分。應用剖分的三維實體模型，用有限元法分析了powerformer定子端部的磁場分佈，計算了端部區域的磁場儲能，並利用磁場儲能計算了powerformer定子端部漏抗，將計算值與設計值進行了比較、分析。由於樣機處在設計生產階段，本文暫時沒有考慮定子鐵心、氣隙和渦流器件對端部磁場的影響，這對分析結果有一定的影響，但是仍然得到較好結果。By 2005, upon the completion of the 100 kilometers of expressways and 109 kilometers of subway, a magnetic levitation train system will also be in place to provide better access from our new airport to the city center
100公里的快速路和109公里的地鐵將於2005年竣工，磁懸浮鐵路系統還將進一步方便新機場與市中心的交通。4. to get the motor ' s performance by calculation with known formulas, as a result an adjustment for the motor ' s configuration can be practised. when a combined method of altering the length of armature, the number of turns in the winding and the dimension of permanent magnet is used. 5. to get the motor ' s performance when it is driven by the power converter. finally, the calculated data are compared with the experimental measurements, so as to verify the rationality and reliability of the method
Q採用數值分析直軸負載磁場和交軸電樞反應磁場的方法來計算，得到較為準確的結果；根據電機工作特性的計算公式計算電機性能，由計算結果調整電機的結構，而調整工作使用改變電機鐵心長度、繞組匝數和永磁體尺寸相結合的方法，這樣可以得到較為理想的結果；對變頻電源供電時電機的工作特性進行計算，以檢驗其變頻時的性能。Firstly, srm magnetic field analysis is performed to get the flux density waveforms in motor core
本文首先對sr電機的磁場進行了有限元分析，得到了電機鐵心各點的磁通密度波形及變化規律。Abstract : the mathematical model for the magnetic field numerical calculation is presented with the theory and the method of magnetic field numerical calculation, which combines with the structure characteristics of the 5 - limb core. the program is compiled by fortran language, and an example for the 5 - limb with flat yoke is given. the results prove the correctness of the method and the practical value
文摘:應用電磁場數值計算的理論與方法，結合五柱鐵心的結構特點，推導出磁場數值計算模型，用fortran語言編制出計算程序，並對五柱平軛式鐵心結構進行實例計算，計算結果驗證了分析方法的正確性和實用價值With summarizing and describing systematically the fundamental principles and research developments of electromagnetic field in the motor, finite element analyses ( fea ) of electromagnetic field of engineering, the switched reluctance motor ( srm ), and iron losses of motor cores, taking the common four - phase, 8 / 6 - pole srm as the object of study, this paper analyses, calculates, and then simulates the electromagnetic field in the srm using 2d finite element method, and obtains the - i - characteristics as the magnetization curve of the srm with the data derived from the results of fea
本文在系統地總結和描述電機內的電磁場、工程電磁場有限元分析、開關磁阻電機（簡稱sr電機）以及電機鐵心損耗基本理論和研究進展動態的基礎上，以常見的四相8 6極電機作為分析對象，進行sr電機磁場二維有限元分析與計算，對電機內磁場進行了模擬，並通過有限元計算所得有關數據獲得- i -形式的sr電機磁化曲線。Core losses are caused by an alternating magnetic field in the core material, thie losses are a function of the operating frequency and the total magnetic flux swing, the total core losses are made up of three main components, hysteresis eddy current and residuallosses, these losses vary considerably from one magnetic material to a - nother, applications such as higher power and hither frequency switching regulators and rf designs require careful core selection to yield the highestinductor perfor - mance by keeping the core losses to a minimum
鐵損是由於在鐵芯中的變更磁場院所造成，這個損失與操作頻率及總流動的磁通量有關，總鐵損由三個成份組成，磁滯損，過流損及殘留損，這些損失因磁性材料不同而異，在如高功率切換調整器和rf的設計需要小心選擇鐵芯種類以降低鐵損使電感的表現最佳。The calculation to the eddy current on the contact surface and axial magnetic field of contact surface and center surface of contact gap are carried out while the current is at zero. after the iron core of ring type is put in, the eddy current on the contact surface will be increased, the axial magnetic field that the eddy current creates will be also increased
對電流過零時觸頭表面的渦流和觸頭表面及觸頭間隙中心平面上的縱向磁場進行了計算，加入圓環型鐵芯后觸頭表面的渦流增大，渦流產生的縱向磁場增大，在鐵芯中開槽后渦流的平均水平降低，縱向磁場平均值降低。At 100, 000 times the strength of the earth ' s magnetic field, the university ' s magnet is so strong it pulls on the steel shanks in the shoes of people who come near it
利諾大學那塊磁鐵的磁場強度是地球的十萬倍，強到人們走近它時，鞋子里的鐵心都會被吸引。Numerical calculation of the magnetic field in a power transformer core with the finite element method
電力變壓器鐵心磁場的有限元數值計算分享友人