The operational principles of this device, the calculation method and steps of the magnetic circuit , the magnetic field partition of working air gap,and the calculating of the magnetic circuit with magnetic leakage coefficient method are introduced.

用3塊永磁鐵組成磁路，制成磁力研磨裝置一级做a免费看，用于零件的小面積研磨男女晚上在床做gif图片视频。介紹其工作原理一级女人裸体A片免费、磁路的計(jì)算方法沈阳45熟女露脸视频对白、步驟日韩丝袜清纯自拍视频，以及對(duì)工作氣隙進(jìn)行磁場(chǎng)劃分免费的日本www视频，用漏磁系數(shù)法計(jì)算磁路

This paper presented the research and exploration of mechanism and technics as well as the design of the magnetic circuit of this new compound machining, based on above, establishing the parameter model, meantime, analyzing influential effects on productivity of magnetic and EDM compound machining the holes through large numbers of experiments, including velcoity contrast experiments of pre-compound and after-compound machining with the change of current, velcoity contrast experiments of pre-compound and after-compound machining with the change of magnetic induction, velcoity contrast experiments of pre-compound and after-compound machining with the change of impulse width, experiments of the superficial roughness, experiments of the Electrode wastage, and intersectant experiments analysis as well as the change experiments of current waveforms. Through a number of experiments we analysed the influential effects of magnetic and EDM compound machining, compared the factors with EDM by oneself. A large of experiment records and deducibility have demonstrated that the productivity of magnetic and EDM compound machining is developed by 20%～400% than traditional EDM.

本論文對(duì)磁場(chǎng)電火花復(fù)合加工這種新的復(fù)合加工的機(jī)理、工藝和復(fù)合加工的磁路設(shè)計(jì)進(jìn)行了研究和探索亚洲人人看a，在此基礎(chǔ)上亚洲欧美日韩国产综合久，建立了磁場(chǎng)電火花復(fù)合加工的參數(shù)模型，同時(shí)通過(guò)大量的隨著電流變化磁場(chǎng)電火花復(fù)合前后加工速度對(duì)比實(shí)驗(yàn)内射美女处女视频、磁感應(yīng)強(qiáng)度變化時(shí)的加工速度變化實(shí)驗(yàn)8050国产午夜二级、隨脈沖寬度變化的加工速度實(shí)驗(yàn)国内揄拍人妻小视频、表面粗糙度實(shí)驗(yàn)精品自拍1314、電極損耗量實(shí)驗(yàn)、磁場(chǎng)電火花復(fù)合加工正交實(shí)驗(yàn)分析这里只有精品久久精、電流波形變化等實(shí)驗(yàn)国产真实强推不让在线观看，實(shí)驗(yàn)分析了影響磁場(chǎng)電火花小孔加工效率的因素，并且跟單一的電火花加工中的影響因數(shù)進(jìn)行了比較日翰伊人一区二区，大量的實(shí)驗(yàn)數(shù)據(jù)和理論推導(dǎo)證明磁場(chǎng)電火花復(fù)合加工比傳統(tǒng)的單一電火花加工的效率提高了20％～400％左右国产不卡自拍av。

The magnetic flux linkage equations and voltage equation are established according to the magnetic circuits and the magnetic conductance equation is listed according to the relations among magnetic flux, current and magnetic circuit.

模型從三相五芯柱變壓器磁路出發(fā)，建立了磁鏈方程国标精品黄片一区、電壓方程最近手机中文字幕高清大全7，并根據(jù)鐵芯和鐵軛的磁通和電流關(guān)系及磁路關(guān)系列出磁導(dǎo)計(jì)算方程；給出了仿真模型的參數(shù)確定方法超碰免费公开在线激情，其中參數(shù)確定與變壓器的結(jié)構(gòu)緊密相關(guān)歐美日韓國產第一頁。

Electromagnetics course mainly including basic phenomena and laws of electro- magnetics, electrostatic field in vacuum, in conductor and in electric medium, electric energy, stabilized current, stabilized magnetic field and its basic laws, electric and magnetic fields caused by a moving chager in lower speed, the transform of electric and magnetic fields between different systems of coordinates, inductive laws, eddy field, self inductance, mutual inductance and transient, molecule current and magnetic substance, ferromagnet, boundary conditions, magnetic circuit theorem, energy of magnetic field and density of magnetic energy, displacement current, Maxwell's equation, electromagnetic wave, Poynting vector.

電磁學(xué)課程的主要內(nèi)容包括：靜電的基本現(xiàn)象和基本定律，真空中的靜電場(chǎng)免费看污的日韩操，導(dǎo)體和電介質(zhì)中的靜電場(chǎng)超碰人人人福利，電場(chǎng)的能量與電場(chǎng)能量密度，穩(wěn)恒電流一级性爱免费，穩(wěn)恒電流磁場(chǎng)的基本定律亚洲另类图片专区，運(yùn)動(dòng)電荷的電磁場(chǎng)，不同參照系之間電磁場(chǎng)的變換亚洲码视频在线wwww，電磁感應(yīng)定律美女被干免费网站，渦旋電場(chǎng)，互感日本在线免费不卡视频，自感三级做a全过程在线观看软件，暫態(tài)過(guò)程，分子電流與磁介質(zhì)日韩欧美亚洲另类在线，鐵磁體精品国产综合区久久久久久软件，邊界條件，磁路定理国产麻豆一级视频在线，磁場(chǎng)的能量和磁能密度无码A级毛片视频免费播放，位移電流久久精品一区二区三区日韩， Maxwell 方程組，電磁波和玻印廷矢量等国产一级欧美黑人一级。

After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

開(kāi)式磁路是由2片釹鐵硼磁鐵和主導(dǎo)磁板和導(dǎo)磁墊片組成538黄色视频，我們?cè)趯?shí)踐過(guò)程中發(fā)現(xiàn)這種磁路結(jié)構(gòu)不適合于低頻揚(yáng)聲器的使用，我們通過(guò)使用FEMM（Finite Element Method Magnetics）軟件包對(duì)該磁路進(jìn)行了分析欧美一级A片喷水高潮，該磁路的磁場(chǎng)范圍被分成3個(gè)區(qū)域欧美视频3p，其中在主導(dǎo)磁板附近形成一個(gè)正向磁場(chǎng)，在正向磁場(chǎng)的兩邊存在反向的磁場(chǎng)性a视频网站在线观看免费，音圈在工作時(shí)有很大一部分進(jìn)入了反向磁場(chǎng)中大香线蕉视频观看国产，在反向磁場(chǎng)內(nèi)線圈的感應(yīng)電流方向與驅(qū)動(dòng)電流方向相同，使得音圈呈現(xiàn)出負(fù)感抗特性国内熟妇人妻色在线视频99，由于音圈的負(fù)感抗特性引起電流的增加導(dǎo)致音圈發(fā)熱甚至燒毀人人人摸人人操，因此在揚(yáng)聲器中使用開(kāi)式磁路時(shí)，音圈的運(yùn)動(dòng)范圍應(yīng)控制在正向磁場(chǎng)范圍之內(nèi)狼友视频免费网站，否則音圈運(yùn)動(dòng)到反向磁場(chǎng)區(qū)域時(shí)將會(huì)產(chǎn)生很大的失真和發(fā)熱国产成人动作片福利姬在线播放，即使在設(shè)計(jì)時(shí)已經(jīng)將音圈的運(yùn)動(dòng)范圍控制在正向磁場(chǎng)范圍之內(nèi)，由于正向磁場(chǎng)的2個(gè)邊緣磁場(chǎng)強(qiáng)度衰減太快2021国产三级片在线观看，同時(shí)開(kāi)式磁路中磁場(chǎng)的分布不是平行的aaa级一级特级黄色网页，而是自由發(fā)散的分布，這樣肯定會(huì)導(dǎo)致?lián)P聲器的非線性失真大人看的网站，因此我們得到的結(jié)論是：開(kāi)式磁路并不是一個(gè)理想的磁路18禁se网站，它不適合于低頻揚(yáng)聲器的使用，但它還可以應(yīng)用于中高頻揚(yáng)聲器亚洲美女性爱一级免费视频。

The opened magnetic circuit is composed as tow NdFeB permanent magnets and a top plate without U-yoke. After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

開(kāi)式磁路是由2片釹鐵硼磁鐵和主導(dǎo)磁板和導(dǎo)磁墊片組成黄色免费一级网站无码，我們?cè)趯?shí)踐過(guò)程中發(fā)現(xiàn)這種磁路結(jié)構(gòu)不適合于低頻揚(yáng)聲器的使用，我們通過(guò)使用FEMM（Finite Element Method Magnetics）軟件包對(duì)該磁路進(jìn)行了分析三级在线播放，該磁路的磁場(chǎng)范圍被分成3個(gè)區(qū)域一级二级黄色网站，其中在主導(dǎo)磁板附近形成一個(gè)正向磁場(chǎng)，在正向磁場(chǎng)的兩邊存在反向的磁場(chǎng)97爱好碰，音圈在工作時(shí)有很大一部分進(jìn)入了反向磁場(chǎng)中高清日韩欧美，在反向磁場(chǎng)內(nèi)線圈的感應(yīng)電流方向與驅(qū)動(dòng)電流方向相同，使得音圈呈現(xiàn)出負(fù)感抗特性精品私拍国产在线播放，由于音圈的負(fù)感抗特性引起電流的增加導(dǎo)致音圈發(fā)熱甚至燒毀中文字幕一区二区巨大乳在线看，因此在揚(yáng)聲器中使用開(kāi)式磁路時(shí)，音圈的運(yùn)動(dòng)范圍應(yīng)控制在正向磁場(chǎng)范圍之內(nèi)A片在线观看视频免费网址，否則音圈運(yùn)動(dòng)到反向磁場(chǎng)區(qū)域時(shí)將會(huì)產(chǎn)生很大的失真和發(fā)熱性爱欧美xxxxx，即使在設(shè)計(jì)時(shí)已經(jīng)將音圈的運(yùn)動(dòng)范圍控制在正向磁場(chǎng)范圍之內(nèi)，由于正向磁場(chǎng)的2個(gè)邊緣磁場(chǎng)強(qiáng)度衰減太快欧美人与动牲交视频，同時(shí)開(kāi)式磁路中磁場(chǎng)的分布不是平行的yy亚洲人成电影网站色，而是自由發(fā)散的分布亚洲黄男女网，這樣肯定會(huì)導(dǎo)致?lián)P聲器的非線性失真，因此我們得到的結(jié)論是：開(kāi)式磁路并不是一個(gè)理想的磁路久久久久久黄色片，它不適合于低頻揚(yáng)聲器的使用黄色视频在线观看xx，但它還可以應(yīng)用于中高頻揚(yáng)聲器。

The paper introduces the working principle of the device, calculation method and step of the magnetic circuit, makes magnetic division to working airspace and calculates magnetic circuit by leakage coefficient method.

介紹該裝置的工作原理美女汚汚无遮挡免费视频、磁路的計(jì)算方法及步驟中文字幕人妻人综合，對(duì)工作氣隙進(jìn)行磁場(chǎng)劃分，用漏磁系數(shù)法計(jì)算磁路日本超碰97人人爽人人爱。

There is however a gap in the magnetic circuit between the pole piece and armature so a force is created which acts to close this gap and complete the magnetic circuit.

然而在磁回路的電機(jī)片和電樞之間有一個(gè)間隙免费强奸网，于是產(chǎn)生一個(gè)力，其作用是關(guān)閉這個(gè)間隙以完成這個(gè)磁回路中文字幕资源在线观看。

Firstly, the relationship between the magnetic pole state of active magnetic pole and the running state of passive magnetic pole was analyzed. The electromagnet's four magnetic pole state and switch sequence, which can drive permanent magnet rotate, were ascertained. Secondly, taking one of magnetic pole state NS (N denotes electromagnet's left magnetic pole and S right magnetic pole) as an example, the distribution of space magnetic field was studied. In addition, the mathematical model of space magnetic field was set up based on the magnetic circuit fundamental and using the method of magnetic analysis and modeling. Lastly, the four states' mathematical model of space magnetic field was solved by using the MATLAB.

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The magnetic circuit was designed by finite element method, and the precision of magnetic circuit was improved.

作者采用有限元法對(duì)力矩器的磁路設(shè)計(jì)進(jìn)行了深入的研究，提高了磁路設(shè)計(jì)和分析的精確程度中文字幕第一区你懂的。