磁力線法 的英文怎麼說
中文拼音 [cílìxiànfǎ]
磁力線法
英文
magnaflux method- 磁 : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 磁力 : [物理學] magnetic force; force on charge
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Two kinds of normal force of permanent magnet linear motor were fully analyzed by using finite element analysis ( fea )
摘要採用有限元模擬的方法,建立了永磁直線電機的模型,對初級與次級、次級與機床間的兩種法向吸力進行了詳細分析。This paper presents our research in actuating in - vivo micro - robot based on the capsule endoscope platform by the external power. while seeking secure driving method we take several factors into account, such as driving environment, power transmitting and consuming, motion requirement and controllability, and locating technique. we mainly deal with driving the capsule with spatial gradient magnetic field, so we employ combined electro - magnetic coils, including gradient coils and homogenous coils, which have rotational dof around a translatable patient bed, to compose a controllable uniform gradient which act on the permanent - magnet embedded robot, thereby get an appropriate spatial force and torque to fulfill the anticipant locomotion such as move, stop, pitch and yaw
基於驅動環境、能量供給和消耗、驅動動作要求及驅動安全性與可控性,定位方案等多方面考慮,尋求安全可靠的腸胃檢查微機器人的外部驅動控制方法,並著重研究直接利用外磁場磁力驅動微機器人:在微機器人內部嵌入永磁性體,利用體外的組合電磁線圈產生加載電流控制的驅動磁場,其中外部的電磁線圈由多組梯度線圈和勻場線圈組合構成,通過繞病床的旋轉以及病床的平移共同控制微機器人所在位置的磁場強度及梯度,作用於微機器人內嵌磁體以獲得空間意義上的必要驅動力和調整轉矩,從而有效地完成驅動動作要求。Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波面電流作用於有限長鐵芯上的模型,引用了氣隙磁場一維解,研究了單層繞組磁場,奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較,簡單介紹了二維解; ( 2 )用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定電壓下的瞬態分析,得到了轉矩,位移,轉速隨時間變化曲線圖,利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較,採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證,由實驗測得了三相電流波形,並與計算結果進行了比較,對其不對稱性進行了定性分析。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。Standard test method for pass through flux of circular magnetic sputtering targets
圓形磁射極板磁力線通過量的標準試驗方法The research team led by breiter used magnetic resonance imaging to map the brain responses of 12 men while they participated in a game of chance involving winning or losing money
由布萊特領導的研究小組使用磁力共振繪圖法,得到了12個人在參加一次賭博游戲中大腦的反應曲線。And lpmsm using high energy permanent magnet has strong electromagnetism thrust, lower cost, small electrical time constant and rapid response etc. using linear permanent magnet synchronous ac motors as driving parts in gantry - moving type milling machine is first proposed in this paper, to bring their high - speed dynamic response ability into play for further realizing rapid synchronism
因此,本文提出了在龍門移動式鏜銑床同步傳動的驅動元件中採用永磁直線同步電機,以發揮其高速的動態響應能力,快速實現同步。本文提出將解耦控制方法應用於龍門移動式鏜銑床的同步傳動中。B ) equivalent circuit method and finite element analysis ( fea ) to compute the static force are presented, the results obtained by each method are compared one with the other. c ) the results of dynamic simulation by means of the software, ansoft show the hlfm " s characteristics when the motor works in the special frequency and single stroke and the conditions used for position control. d ) the measured static thrust - displacement characteristics and the dynamic characteristics during starting show good correlation with the calculated results
在設計並製作了實驗樣機的基礎上所做的研究內容包括; ( 1 )分別用能量法和麥克斯韋張量法推導電磁力的計算公式,並討論他們的不同應用范圍; ( 2 )分別用等效磁路法和有限元法作直線力電機的靜特性分析,並比較分析它們的計算結果; ( 3 )用有限元模擬軟體做直線力電機動態特性的模擬,分別分析直線力電機的頻率特性、動子開合閘特性和開環位置控制的工作特性; ( 4 )做直線力電機的靜推力?位移特性實驗和動子開合閘的動態實驗,並將實驗結果與計算結果進行對比,實驗驗證了計算模型及計算方法的正確性。Aimed at the actual applicative requirements of models in the control system, two kinds of linearization method for magnetic force of permanent electromagnetic bearing have been advanced
摘要針對控制系統模型的實際應用需要,對永磁電磁軸承的磁力提出了兩種線性化方法。This dissertation put forward a method of eliminating noise and reconstituting broken wires signal and inquired the space - frequency range of the signal ripple resulted from tensile stress on the mfl signal curve
提出了去除干擾重組斷絲信號的方法,分析了漏磁曲線上應力波紋的空間頻率分量。In order to resolve the question, in the thesis a simulation arithmetic of hydro - electrical system is put up. the equations of hydro - electrical system are divided to two parts, one of which consists of the differential equations of conduit system, hydro turbine and generator ' s rotator and is solved by characteristic equation arithmetic, the other of which consists of the differential equations of generator, magnetic system and grid and is solved by longge - kuta arithmetic or covert integrated arithmetic. through the alternative solving of the two parts, the simulation results of the large - disturbance transient could be abstained eventually
為解決這一問題,本文提出了一種將水力系統和電力系統方程交替求解的水電系統聯合模擬演算法,即將包括輸水系統、水輪機以及機組轉子等部分的水力系統差分方程作為一部分,將包括同步發電機、勵磁系統以及電網等部分的電力系統微分方程或差分方程作為另一鄭州大學工學碩士論文部分,對前一部分採用特徵線法求解,對后一部分根據模型形式採用龍格一庫塔法或隱式積分法等演算法求解,這兩部分的求解過程交替進行,最終即可得到水電系統大擾動過程的模擬結果。Test method for magnetic properties of high - coercivity permanent magnet materials using hysteresigraphs
使用磁滯曲線繪制儀測試高矯頑磁力永磁材料磁性能的方法After the discussion of the numerical simulation method based on the fdtd method and the pml technique, the motions of the charges and the electrical field lines were first employed to describe the radiation procedures of the pulse electromagnetic waves. then the causes of how the charges are accelerated and how the motion status of the charges are maintained were further studied from the angle of interaction of charge and field. after these analyses, it was pointed out that the pulse radiation is due to the suddenly occurred time - varying electrical field ( displacement current ) in the open space. this view was further evidenced by two examples : one is the partly resistance loaded antenna, the other is the partly curved antenna. the radiation procedures of the pulse electromagnetic waves of many different situations were simulated throughout this paper with the contours and waveforms of electric field given. these figures are very helpful to the understanding of the radiation mechanism of the pulse electromagnetic waves
在討論了基於時域有限差分法和完全匹配層技術的數值模擬方法之後,首先從運動電荷和電力線的角度直觀地描述了脈沖電磁波的輻射過程,然後進一步從場與電荷相互作用的角度分析了天線上電荷是如何被加速以及如何維持其運動狀態的,指出了開放空間中突然出現的時變電場(位移電流)是脈沖電磁波輻射的根本原因.文中還對局部電阻加載的天線和局部彎曲的天線進行了研究,以進一步說明上述觀點.對多種情況下的脈沖輻射過程進行了數值模擬,並給出了電場的等高線和空間波形圖,這些圖形對理解脈沖電磁波的輻射機理非常有益The experiment results show that the rotor can be suspended with dc when adopting motor ' s coiling method, which testifies the feasibility of integrative control by adding ac to windings coiled in this method, and lay out good foundations for further investigation
實驗結果表明,在電機繞線方式下能夠進行轉子的懸浮實驗,從而證明了採用電機繞線法進行動力磁軸承交流綜合控制實驗的可行性,為今後的深入研究工作打下了基礎。Magnetic force pump magnet couplings " universal energy equation is educed by analyzing of demagnetization curve, ways of reverting force calculating are introduced according to the equation when inside magnet rotor have axial direction and radial displacement, circumferential moment of magnetic force has been given, magnetic force pump alnico ' s axial direction length, circumferential length, radial thickness amounts are summarized with the analyses of experiment results
利用退磁曲線法,推導磁力泵聯軸器能量通用公式,導出內磁轉子在軸向偏移和徑向偏置下產生的回復力計算方法,周向傳動轉矩計算方法,結合試驗結果,總結推薦磁力泵磁鋼軸向長度、周向長度、徑向厚度、磁極數設計方法。The perfect magnetic field resolution and finite partial analyzing are future magnet calculating ways, combining magnetic force pump alnicos " character, virtue of gradual change magneto gram and ways of analyzing planar magneto gram by finite partial are introduced, the ways of acquiring demagnetization curve are introduced and illustrated in details
理想磁場的解析求解和有限元分析是磁力計算的未來方向,本文結合磁力泵磁鋼特點,介紹了漸變磁路的優點和利用有限差分法在求解二維磁場的思路和步驟,文中還總結了求解退磁曲線的詳細方法。Emc test method research for plc system
低壓電力線信號接入系統電磁兼容測試方法研究However flux leakage is really exist, calculation through formular analytic method has more error, so electromagnetic field analysis is made by using finite element method ( fem ) in ansys7. 1 / multiphysics and ansys / emag programs. typical quantities of interest in a magnetic analysis are available such as magnetic flux density, magnetic field intensity, magnetic forces, power loss and flux leakage in the system of magnetic levitation. then gain the current in the coil which control levitation gap when the stage is stable
由於存在漏磁,用公式的解析法計算有很大的誤差,因此本文採用有限元法( fem )來計算磁懸浮系統磁場分佈,從而計算磁力,通過用ansys7 . 1軟體進行有限元電磁場分析計算,得到平臺穩定懸浮時電磁線圈所需電流、懸浮氣隙等控制參數,由於設計的磁懸浮系統為非軸對稱結構,採用2d磁場分析有一定的誤差,而採用3d電磁場分析更接近實際。Measurement of power frequency electric and magnetic fields from ac power lines
交流電力線路工業頻率電場和磁場的測量方法Numerical model about the magnetic force between magnetic field generated by electric field and the magnet is established. in chapter 4, based on the basic numerical model, a multi - energy such as electricity magnet - mechanics numerical model of cantilever beam style magnetic microactuator is established. using matching method, the impact on the outer radius of coil and magnetic force resulted from the distance between the magnet and the coil is analyzed
第四章、在基本數學模型的基礎上,建立了懸臂梁式磁微致動器的電?磁?機械的多能量域數學模型;利用參數匹配分析的方法,研究線圈和梁之間的間距對線圈外徑和磁力的影響;利用分析結果進行結構設計,並用有限元分析對不同參數條件的致動器進行了數值模擬,研究了不同磁體參數對致動力的影響。分享友人