This paper focuses on the electromagnetic field computation and inverse electromagnetic field problem of switched reluctance motor 本文對開關(guān)磁阻電動機電磁場分析與逆問題計算進行了深入系統(tǒng)的研究。
But in the course of magnetic field computation the permeability distribution in soft magnetic materials has to be supposed as known and fixed 該程序在磁場計算中只能假設(shè)軟磁材料中的磁導(dǎo)率都是已知的固定值。
An optimized position of ventilated hole is obtained by electromagnetic field computation . according to these analyses , three pm generators for autos are designed 在以上分析的基礎(chǔ)上,設(shè)計并制造了三臺樣機,試驗結(jié)果良好。
Owing to the complex shape and dimension , magnetic field computation can not be accomplished by analytical method , but by numerical computation 由于旋轉(zhuǎn)磁場具有復(fù)雜的形狀和尺寸,因而磁場的計算很難用解析法完成,而只能采用數(shù)值計算方法。
The application of developed software to the treatment of electromagnetic field computation results of permanent magnetic electrical machine indicates that the graphic can provide designers valuable figurative reference 結(jié)果表明,本軟件計算結(jié)果較為準確,對電機磁場旋轉(zhuǎn)的仿真效果較好。
The control theory method only needs double time of the fluid field computation to obtain the global gradients , through solving the adjoint equations of the governing equations 通過求解共軛方程來得到目標函數(shù)對于設(shè)計變量的梯度,再利用所求的梯度進行優(yōu)化設(shè)計,只需要花費兩倍求解流場的時間。
Second , a visual software for srm electromagnetic field computation is developed by using object oriented programming , in which rotor movement problem is dealt with moving boundary method 第二,用運動邊界法處理相對運動,應(yīng)用面向?qū)ο蟮某绦蛟O(shè)計方法,開發(fā)了可視化開關(guān)磁阻電機電磁場分析軟件。
Furthermore , a novel combined finite element method and charge simulation method has been proposed in this thesis for realizing the electric field computation of open boundary problem 同時,實現(xiàn)了有限元和模擬電荷法耦合求解無限遠場域問題,提出了實現(xiàn)無界場域電場的高精度數(shù)值求解的一種新思路。
The application of developed software to the treatment of electromagnetic field computation results of permanent magnet synchronous motor indicates that the graph can provide designers valuable figurative reference 用本文編制的軟件,對永磁同步電動機電磁場計算結(jié)果進行的處理表明,它的圖形輸出結(jié)果能為廣大設(shè)計人員提供形象、直觀的圖形參考意見。
In computation of swept volume approximation , an improved technique to generate the swept volume approximation for arbitrary meshes is presented by introducing generator simplification and path resample using frenet moving frames along the discreted sweeping trajectory . other steps , such as a directed distance field computation on a uniform grid based on the hardware accelerated computation technique and iso - surface extraction using marching cubes algorithm , are also included in this algorithm . in addition , the simplification scheme and smoothing technique are applied to the swept volume generated from iso - surface extraction 本文的主要貢獻在于:在掃描體逼近計算方面,在原有任意多邊形網(wǎng)格模型沿任意路徑運動生成掃描體逼近算法的基礎(chǔ)上,提出了加入對掃描母體簡化的預(yù)處理和用活動標架對掃描路徑進行重采樣等過程,算法的其它過程還包括:計算掃描體中幾何基元的排列,用硬件加速構(gòu)造無符號的有向距離場,將無符號距離場轉(zhuǎn)化為有符號距離場,從有符號有向距離場提取等值面等。