permanent charge 中文意思是什麼
permanent charge
解釋
固定費-
The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed
本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。 -
If you already mail your package to our permanent address, the delivery company will forward it to the temporary address automatically. however some companies may charge an additional address fee
如您已經將郵件寄往了永久地址，郵遞公司會主動將他們轉到我們的臨時地址，但有些公司可能會收取一定的更改地址費。 -
In many years, the analysis of mechanical characteristics of permanent magnet bearings is deeply studied by scholars in the world, mathematical model is built for analyzing mechanical characteristics of permanent magnet bearings by static magnetic circuit method and equivalent magnetic charge method
長期以來，國內外學者對永磁軸承力學特性進行了深入地研究，建立了採用靜磁路法和等效磁荷法分析永磁軸承力學特性的數學模型。 -
This dissertation is devoted to the study on permanent magnet synchronous motor ( pmsm ) drive system in electric vehicle ( ev ) application aided by the state " 863 plan " and the science and technology items of liaoning province. four parts are included as follows : first of all, an efficiency - optimization control strategy for pmsm system used in ev is presented in order to extend road haul per charge
在國家863計劃「九五」重大項目「釹鐵硼電機應用產品開發」 、遼寧省科學技術計劃項目「高性能釹鐵硼永磁電機的研製」及沈陽市「十五」科技攻關項目資助下，本文研究工作圍繞電動汽車用永磁同步電動機（ pmsm ）傳動控制系統展開，研究內容分為以下四個部分：首先，為提高電動汽車一次充電續行里程，提出電動汽車用pmsm系統的效率優化控制策略。 -
Utilizing the theory of magnetic charge, the model for computing the bearing capacity of permanent magnetic thrust bearing was established, and the influences of non - uniformity of magnet magnetization and soft magnetic material on the bearing capacity and rigidity of bearing were studied
運用磁荷理論建立了計算永磁推力軸承承載力模型，研究了磁鐵磁化不均性和軟磁材料對軸承承載力及剛度的影響。 -
The dissertation places an emphasis on the research of mechanical characteristics of permanent magnet bearings, research is mainly done in the following aspects : mechanical characteristics of permanent magnet bearings is analyzed by static magnetic circuit method and equivalent magnetic charge method respectively, mathematical models are also built by the two methods
本文的工作內容圍繞永磁軸承力學特性的研究展開，主要做了以下幾個方面的工作：採用靜磁路法和等效磁荷法對永磁軸承的力學特性進行了系統地分析，並建立了這兩種方法的數學模型。 -
World trade organization ( wto ) is a permanent international organization of the united nations in charge of administrating world economy and trade organization and leads an important role
世界貿易組織wto是一個獨立於聯合國的永久性國際組織，負責管理世界經濟和貿易秩序。它也是世界上最大的多邊貿易組織，它對世界經濟的發展起著舉足輕重的作用。 -
The peripheral circuit includes charge and discharge circuit of permanent magnetic actuator ( pma ), extended circuit of memory, interface circuit of keyboard and display system, and interface circuit of input and output signal
外圍電路包括永磁機構充、放電電路、存儲器擴展電路、鍵盤和顯示介面電路、輸入和輸出介面電路等。
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