超參數元 的英文怎麼說
中文拼音 [chāoshēnshǔyuán]
超參數元
英文
superparametric element-
Powerformer have some changes in constract with the conventional generator , subsequently it also have some new problems in order to have an economical , efficient , credible development and application the structure and the philosophy of electromagnetism of powerformer will be on speaking terms changes electrical design , magnetism design , thermal design and structural design are have some new changes above all , the electromagnetism parameter and the harmonic magnetomotive force of powerformer are studied in this paper first , it mainly utilizes analytics to deduce formula of slot leakage reactance it considers three instances , including monolayer - slot , multilayer isometric - slot and multilayer anisometric - slot then , the analytics and the fem are utilized to calculate slot leakage reactance of stator winding of prototype of powerformer and compare their results second , the theory of utilitzing fem to calculate the reactance of powerformer is simply introduced , including stable reactance , transient and subtransient reactance specially , the saturated influence of the stable reactance is considered then , the results are analysed final , it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding then , it mainly analyse harmonic magneto - motive force of stator winding through arranging various arrays of stator winding and observe their influence
基於上述原因,本文對powerformer的電磁參數以及定子繞組諧波磁勢進行了研究。首先是用解析法推導出powerformer定子繞組槽漏抗的計算公式,考慮了單層圓形半閉口槽、多層等半徑圓形半閉口槽和多層不等半徑圓形半閉口槽三種情況,並對powerformer樣機的定子繞組槽漏抗用解析法和有限元法進行了計算,並比較其結果;其次,簡要介紹了有限元法計算powerformer電抗參數的原理,包括穩態電抗、瞬態電抗和超瞬態電抗,對穩態電抗考慮飽和影響,對結果進行分析;最後,介紹定子繞組諧波磁勢對電機運行性能的影響並對定子繞組諧波磁勢進行了分析。然後通過對定子繞組進行不同排列來分析定子繞組諧波磁勢,看看繞組排列對諧波磁勢的影響。First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled
首先在推導超聲相控線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣幅度、消除柵瓣) 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計程序和界面。The intelligent time relay is intelligent double row four location display instrument, it is the operation of three keys, have the function of single setting double setting time, it applies special technique to resist interference, avdvanced craft, high technology, satisfied the clients need. its the new product which assimilate the nation and internationals same products character
名稱: sng智能時間繼電器sng智能時間繼電器是智能型雙排四位顯示儀表,儀表為三鍵操作,具有單雙時間設置,參數設置快捷,符號顯示簡潔,儀表採用進口超強抗干擾晶元設計質量可靠。Effect of structural parameters on current - voltage characteristics in a three - quantum - well superlattice unit
結構參數對三量子阱超晶格單元結構伏安特性的影響Series of general - purpse instruments : including series of 2800 and 2500 electronics compoment parameters testing meter and related products ; series of 1630 function signal generator ; 1250 ultralow frequency spectrum analyzer and signal generator
通用類儀器系列:包括2800系列、 2500系列元件參數測量儀及其配套產品; 1630系列函數信號發生器; 1250超低頻系列頻譜分析儀及信號源。Finally according to the above mentioned results, two universal ulpa were made and their performance were tested. these results indicated that on the whole, the values of parameters, such as sensitivity of each element, center frequency, relative bandwidth and cross coupling among near elements and so on, and their consistency all meet the ask of technique. therefore, both of transducers performance are favorable
最後根據上述研討結果,製作了兩個通用超產相控線陣換能器,並進行了性能測試,結果表明兩個換能器各陣元靈敏度、中心頻率、相對帶寬、相鄰陣元間串波等參數值及其一致性均基本滿足技術要求,換能器性能良好。High accuracy analysis of five parameters rectangular nonconforming element
五參數非協調矩形元的超收斂性分析The convective term is solved by ausm + ( a sequel to ausm which means " the advection upstream splitting method " ). the 7 species 8 steps model and 7 species 7 steps model of hydrogen / air is used in the hydrogen reacting flowfield, the 9 species 5 steps model of methane, the 10 species 10 steps model of ethane and the 10 species 13 steps model of kerosene are used in the hydrocarbon reacting flowfield, the results of the distributions of velocity, mach number, pressure, static temperature, total temperature, species mass fraction and the combustion efficiency are gained, and the numerical results of the pressure of hydrogen and methane are compared with those of the experiment
計算中通量項採用ausm +通量分裂格式,氫反應流場採用氫/空氣的七組元八方程模型和七組元七方程模型,碳氫反應流場採用甲烷的九組元五方程模型、乙烯的十組元十方程模型和煤油的十組元十三方程模型,得出了超燃發動機燃燒室流場的速度、馬赫數、壓力、靜溫、總溫和組元質量分數分佈及燃燒效率等性能參數,其中氫和甲烷的計算壓力分佈與實驗結果進行了比較。In order to make the mgb more easy - operating, ultrasonic testing simula - tion software was designed and developed, which has a good user - oriented interface and can simulate easily the inspection fields of planar transducer, focused transducer and angle beam transducer. it also can help inspectors analyze the inspection procedures and predict the feasibility of actual ultrasonic testing, then choose suitable inspection parameters. the side - drill hole and flat - bottom hole are commonly used in ultrasonic
為了使多元高斯模型使用更加方便,本文設計並開發了基於多元高斯聲束理論的超聲檢測聲場模擬軟體,該軟體具有良好的圖形用戶界面,操作簡單,可方便地實現直探頭、聚焦探頭和斜探頭的檢測聲場模擬,可幫助檢測人員進行檢測過程的分析及結構件的可檢性預測,並選擇合適的檢測工藝參數。A block design is a triple d = ( x, b, i ), where x is a finite set ( the point set ) of order v, b is the block set and / is the incidence relation between x and b. for the given block design d, if all the blocks from x, which have the same type of the blocks in b, can be partitioned into some bi, such that each ( x, bi, i ) is a block design with the same parameters and the same type as d, then { ( x, bi, i ) } i is called as large set of d - design of order v. on the other side, let | x | = v, | y | = v + 1, and x y, if all the blocks of the same type from y can be partitioned into some bx, such that each ( y { x }, bx, i } is a block design of order v for any element x y with the same parameters and the same type as d, then { ( y { x }, bx, i ) } x is called an overlarge set of d - design of order v. in this thesis, we discuss the existence problem about some types of large sets and overlarge sets
一個區組設計是由兩個有限集合x , b及它們之間的關聯關系i組成的,記為d = ( x , b , i ) ,其中x為v元集, b為區組集,對于指定的設計d ,若x上與d相應的全部構形可分拆為若干個b _ i ,使得每個( x , b _ i , i )皆為一個與d同參數同類型設計,則稱這些b _ i構成一個v階d -設計的大集。若v元集x是v + 1元集y的一個子集,而y上與d相應的全部指定構形可分拆為若干個b _ x ,使得每個b _ x恰是y { x }上的一個與d同參數同類型的設計(其中x y ) ,則稱這些b _ x構成一個v階d -設計的超大集。本文中討論了一些區組設計的大集及超大集。( 4 ) applying web technology in mf - cad, a web site is set up on frontpage2000 platform, which provides file directories of parametric graph library of fixture part. moreover, by founding the hyperlink between web pages and frame pages with html ( hypertext markup language ), the remote design of fixture parts and download of application procedure is realized through web technologies and feature modeling methods
( 4 )將web技術與mf - cad相結合,應用frontpage2000創建web站點並建立夾具元件參數化圖庫的設計文件目錄,用html超文本標注語言創建頁面與框架頁面之間的超連接,實現了基於web技術與特徵造型的夾具元件參數化圖庫的遠程設計和夾具定位系統arx應用程序的遠程下載。This paper determines the technological process, bath formularizstion and experimental parameter of electroless multicomponent cobalt based soft magnetic film with rare earth elements joined such as co - ni - b - re and co - fe - b - re by the means of perpendicular experiment and regression analysis. this paper also studies the active mechanism of rare earth elements, ultrasonic irradiation and magnetic field on the plating process, chemical component, surface configuration, microstructure and properties of electroless multicomponent cobalt based soft magnetic film in the way of examining in the component, microstructure and properties of such alloy
本文採用正交實驗和回歸分析的方法,確定了稀土化學沉積co - ni - b - re 、 co - fe - b - re多元鈷基軟磁薄膜的工藝流程、鍍液配方和實驗參數,並通過對合金鍍層的成分含量測定、形貌結構分析和力學磁學性能評估,研究了稀土元素、超聲波、磁場介入化學沉積多元鈷基軟磁薄膜工藝后,對合金成分、結構和性能的作用機制。Parameter indicates a position byond the length of the byte array as indicated by the
參數指示超過位元組數組長度(由Through experimental research, the calculation formula that the pressure highly - adjusted capacity of two cylinder chambers varied with the change of step load and the formula about hydraulic elements main parameter ( rated pressure ) were both made, which had important valuation in selecting the main parameter about this hydraulic system
通過試驗研究得出了出口節流調速系統中液壓缸兩腔壓力超調量隨負載變化的計算公式以及出口節流調速系統中液壓元件主參數(額定壓力)計算公式,有利於正確選擇系統的元件及主參數。Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜合性能: ( 1 )提出一種新型的速度磁鏈觀測器,新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度,並且根據popov超穩定性理論推導出轉速的新型自適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對定子磁鏈的估計精度入手,提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數; ( 3 )採用數字信號處理器dsp實現系統全數字化硬體控制,結合ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路化分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適合同步和協調控制的串列實時通信協議; ( 5 )基本勾勒出整個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節問題。One is hard fault, which means the stuck - open fault and the bridge fault ; another is soft fault, which refers to the component parameters going beyond the preassumed perfomance range. usually, these faults do not lead to a total failure of equipments
一類稱之為硬故障,指元件的開路和短路失效故障,另一類稱之為軟故障,指元件的參數超出預定的容差范圍,一般它們均未使設備完全失效。Then, as the substitute of the traditional pi controller, neuron adaptive psd controller is used to alternate the velocity loop of dc driver system, simulation results show that the super - shoot in new system is small and the performance in the way of anti - disturbance and anti - time - varying parameters are higher than the traditional pi controller and robustness of the dc driver system improved greatly, in addition, through analysis of the character of the neuron adaptive psd controller, the paper presents a neural network self - tuning control method for dc driver system in which the diagonal recurrent neural network is used to identify the plant to calculate the plant ' s sensitivity for psd controllers simulation results indicate that excellent static dynamic target was got with this control method and the performance of the system is improved greatly,
然後,應用單神經元自適應psd控制器改造調速系統的轉速環,代替傳統pi調節方式的轉速控制器。模擬表明,新系統在超調、抗負載擾動和參數時變方面性能優于的傳統的pi控制方式,系統的魯棒性增強。在分析單神經元自適應psd控制器特性后,本文提出用對角遞歸神經網路辯識控制對象,為psd控制器提供靈敏度參數,從而構成一神經網路自校正控制方案。Based on the mode analysis of the stator of a ultrasonic motor using in - plane bending vibration, three kinds of in - plane vibration modes are obtained, and the influence of the motors structural parameters on its modal frequencies are discussed. some helpful conclusions are given, which provide theoretical basis for the design of this type of motor
運用有限元方法對利用平面內彎曲模態超聲電機定子進行了模態分析,獲得了三種不同類型的面內振動模態,並討論了電機結構參數對其模態頻率的影響,在此基礎上得到了一些有益的結論,為利用平面內旋轉模態設計超聲電機定子提供了理論依據。Abstract : based on the mode analysis of the stator of a ultrasonic motor using in - plane bending vibration, three kinds of in - plane vibration modes are obtained, and the influence of the motor ' s structural parameters on its modal frequencies are discussed. some helpful conclusions are given, which provide theoretical basis for the design of this type of motor
文摘:運用有限元方法對利用平面內彎曲模態超聲電機定子進行了模態分析,獲得了三種不同類型的面內振動模態,並討論了電機結構參數對其模態頻率的影響,在此基礎上得到了一些有益的結論,為利用平面內旋轉模態設計超聲電機定子提供了理論依據。Super - parametric element
超參數元分享友人