矢量耦合 的英文怎麼說
中文拼音 [shǐliángǒugě]
矢量耦合
英文
vector coupling- 矢 : Ⅰ名詞1. (箭) arrow 2. (尿) excrement; dung; feces 3. (姓氏) a surname Ⅱ動詞(發誓) vow; swear
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 耦 : Ⅰ動詞[書面語] (兩人並耕) plough side by sideⅡ名詞1 (古農具名) plough2 [書面語] (兩人一組) a...
- 合 : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
- 耦合 : [物理學] coupling; interconnection; catena; linkage; linking
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The dissertation has been divided into three part : the method of scalar fem for calculating the scattering and coupling character of 2d cavities ; the high efficient algorithm of vector fem for the scattering and coupling character of 3d cavities ; the method of calculate caliber admittance matrix for high efficient algorithm to compute the scattering and coupling character body with open cavities
全文分別研究標量有限元邊界積分求解二維腔體電磁散射與耦合的計算方法,矢量有限元邊界積分求解三維腔體電磁散射與耦合的計算方法,同時針對含腔目標的高效求解問題提出了口徑導納矩陣的新的計算方法,提高了計算效率。From the model, we can solve and gain the values and change orders of charging current, charging voltage, discharging current, discharging voltage and inductive current. after that, the electromagnetic fields can be created from two circuits " currents, and their magnetic rector and flux can be simulated from ansys solver
用ansys multiphysics模塊求解出充電電流、充電電壓、放電電流、放電電壓和感應電流以及這些參數隨時間變化的規律:然後利用兩個迴路的電流耦合出電磁場,並模擬出磁矢量、磁通密度。The results show that binding energies per nucleon at each density and various asymmetry parameters fulfill the empirical parabolic law and the asymmetry energy is density dependent. it is found that both scalar and vector potentials of neutron in the neutron rich nuclear matter become stronger although the isospin dependence is not stronger. we compare our results with those in a simple method, where the dbhf nucleon self - energies are extracted from the momentum dependence of the single - particle energy
首先我們要求在每一個密度及各種不對稱系數的核物質中,相對論平均場( rmf )計算出的核子標量與矢量自能與dbhf計算出的標量與矢量自能一致,從而得到在rmf下的密度依賴的有效介子核子耦合常數,包括同位旋標量介子。By associating the spin vector of the inhomogeneous generalized heisenberg ferromagnet with the binormal to a moving curve in minkowski space, the corresponding equivalent coupled inhomogeneous integrable equation is present
通過將非均勻推廣的海森堡鐵磁鏈的自旋矢量取為閔可夫斯基空間中曲線的次法矢量,得到相應的耦合的非均勻可積方程。The result of thermal analysis for coupled - cavity slow - wave structure had been achieved in the form of temperature contour figure and heat flow density vector figure
對耦合腔慢波結構熱特性的模擬得到了以溫度分佈雲圖和熱流密度矢量圖方式表示的結果。As a non - linear and multi - coupled system, the control of the ac induction motor ( acim ) has long been challenging. thanks to the vector control algorithm, acim can offer the same control capabilities and dynamic performance as traditional high - performance dc motors. with the vector control algorithm, the stator current of acim can be expressed in two orthogonal axes, and thus the rotor flux part and torque are de - coupled
交流感應電機難于控制是因為它是一個非線性、多耦合的系統,矢量控制演算法通過坐標變換將異步電機的定子電流分解為轉子磁鏈方向和與之垂直方向的兩個分量分別進行控制,從而實現轉子磁通和轉矩的解耦,使得交流感應電機的動態性能可以和直流電機媲美。Coupled - mode theory ( cmt ) has been developed from the orthogonal cmt to the nonorthogonal one as well as from the scalar cmt to the vector one during these scores of years. it was applied extensively in guided - wave optics as an effective mathematical tool for the analysis of the coupling between the modes. however, as far as we know, there has not been any report of the rigorous vectorial cmt in the relative publication at home and abroad
耦合模理論在這幾十年的發展歷程中,從正交耦合到非正交耦合,從標量耦合到矢量耦合,作為很有效的數學工具分析電磁場中的模式耦合,但據我們所知,嚴格的具有普遍適用性的非正交矢量耦合模理論還未見報道,因此耦合模理論還有待于進一步完善。When the isotropic waveguide is under the isotropic disturbances, the coupling term due to polarization, which is presented in the coupled - mode theory of the wei - ping huang, is n ' t included in this rigorous vectorial coupled - mode theory, exactly, the rigorous vectorial cmt does n ' t contain the coupling term due to polarization which is include in the scalar coupled - mode theory because this term is counteracted with the other coupling term neglected under weakly guiding approximation. as for anisotropic disturbances, we get the coupled - mode equations with arbitrary dielectric tensors. from them, we obtain the coupled - mode equations of the slowly varying term c ( z ) which is more simplicity
當受到各向同性微擾時,我們發現嚴格的矢量理論所得到的耦合系數表達式中並不包括wei - pinghuang的理論中的偏振耦合項,更確切的說,偏振耦合項正好與因弱導近似而忽略的項相抵消,這就是標量理論所得到結果(有偏振耦合項)與矢量理論在標量近似下的結果(不含偏振耦合項)不一致的原因所在;當各向異性微擾時,我們得到了包含微擾介電張量各個分量的橫電磁場耦合波方程,討論了微擾介電張量各個分量對耦合的影響,而且從橫電磁場耦合波方程出發得到了形式更加簡單的只含有橫電場系數的緩變分量c _ ( z )的耦合波方程和耦合系數表達式,並以弱導近似下的單模光纖兩正交偏振模耦合為例對耦合系數在不同條件下的取捨做了定性的分析。Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly
但是高性能的交流調速系統實現很困難,這是因為交流電機是多變量、強耦合的非線性系統,不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題,其基本思路? ?應用坐標變換將三相等效為二相,實現定子勵磁電流分量與轉矩電流分量之間的解耦,達到對交流電機磁鏈與電流分別控制的目的,交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步,計算機技術飛躍發展,高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中,促進矢量控制迅猛發展,日趨成熟。It realized the spatial interpolation software grounded on geostatistics seamlesslly integrated with the system using the way of oop and the technology of ole / activex based on com. using vector - grid spatial - overlap analysis to solve the limitation of the grid and general vector data structure in the course of creating prescription, it made fertilizer prescription founded on the main factor of soil nutrient and yield - target. also it effectively integrated comgis with exper t system using the technique of loose coupling
以面向對象的設計方法為基礎,利用「組件對象模型」基礎上ole / activex技術實現基於地統計學的空間插值軟體實現及與施肥處方系統的無縫集成;應用基於矢量網格的空間疊加分析方法解決柵格和常規矢量數據結構在處方生成中的局限,生成了基於土壤養分和目標產量為主要因素的施肥處方;利用鬆散耦合技術將comgis與施肥專家系統進行有效集成;充分考慮施肥機對施肥處方數據結構要求,在wgs - 84坐標系下採用具有柵格單元的矢量施肥處方。The essay suggested coupling approaches of ecological economic system pointedly with theory of coupling catalyzing and management accesses based on analyzing causes of ecological - economic system coupling status of zhijin county : 1 ) put population into practice with controlling the quantity of population and developing the quality of population ; 2 ) carry out the strategy of revitalizing zhijin through science and education ; 3 ) take ecological - economic management and optimize industrial structure and develop zhijin ’ s economy ; 4 ) protect environment & resources and control karst rocky desertification integratedly ; 5 ) facilitate urban - rural coupling and sustainable development depended on urbanizing
在原因分析的基礎上,以催化和管理耦合理論為指導,論文有的放矢地提出生態經濟系統的耦合途徑: 1 )實施人口政策,控制人口數量,提高人口素質; 2 )大力實施「科教興織」戰略; 3 )推行生態經濟管理,優化產業結構,發展織金經濟; 4 )保護環境和資源,綜合防治石漠化; 5 )以城鎮化為載體,推進城鄉耦合和可持續發展。This paper expatiated that the mathematics models of ac motor is higher order, non - linear and closed coupling, multivariable input - output system. and introduces the principle and the algorithm of sine pulse width modulation ( spwm ), opened - loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ). finally, realized the control strategies of variable - frequency speed regulating using assembly and c language
文中闡述了交流異步電機的數學模型是高階、非線性、強耦合的多變量輸入輸出系統,介紹了交流電機的正弦脈寬調制、開環電壓空間矢量的u / f控制和磁場定向控制的原理及控制演算法,並利用dsp構成控制系統,通過匯編語言和16位定點c語言混合編程的方法實現了上述的變頻調速控制策略。So, it is looked forward to being more perfect. in this thesis, beginning with the maxwell equation, we mainly do the following work based on the rigorous mathematical analysis : firstly, we present the rigorous nonorthogonal vectorial cmt for the isotropic waveguide under isotropic disturbances and anisotropic disturbances respectively. during the derivation, it is fully reflected the property of the vector and the universal fitness without any approximation
本論文從maxwell方程出發,在嚴格的數學分析基礎上主要做了以下兩方面的工作:第一,分別嚴格地推導出了各向同性光波導在各向同性微擾和各向異性微擾下的非正交矢量耦合模理論,在推導過程中,考慮到電磁場的矢量性和非正交性且沒有用到任何近似,因此具有普遍適用性。A new decoupling control strategy of magnetic suspension forces is put forward using the transformation of variables and reference frames for the proposed bearingless motor
利用混合式轉子無軸承電機的轉子特點,將磁懸浮力模型轉變為電流空間矢量方程,提出了一種新的磁懸浮力解耦控制方法。However, the dirac structure of the nucleon self - energy in the dbhf can not be explicitly obtained in a numerical calculation. therefore a reliable decomposition of the dbhf g matrix is desirable, which is significant for the extraction of effective interactions, especially for the isospin dependence of the effective interactions
然而,在該理論方法中,如何合理地給出dbhf自能的dirac結構對于有效相互作用的提取,特別是同位旋矢量介子有效相互作用耦合常數的提取是十分重要的。We employ the rigorous vector coupled - wave theory to analyze the electromagnetic diffraction nature of two - dimensional columned grid gratings
我們使用了嚴格的矢量衍射理論? ?耦合波理論分析圓柱形網格光柵的衍射特性。Coupled field vector
耦合場矢量In chapter 3, the mathematical modal of electromagnetic and temperature fields is presented by a complex magnetic vector potential, which is also applied to solve eddy current field in ansys software. then, the electromagnetic field analysis, thermal analysis and coupled - field analysis in ansys are introduced
第三章:介紹了ansys中引入復矢量磁位計算電磁場、渦流場的方法以及溫度場求解的數學模型,簡述了ansys軟體中的電磁場、溫度場以及耦合場分析。Regarding the discrete magnetic vector potential and loop currents as the state variables, and combining the fem with the multi - loop method, a mathematical model of the synchronous machine with internal faults is set up in this paper
本文以矢量磁位和迴路電流為求解變量,把電機的電磁場方程與反映繞組聯接情況的電路方程聯立起來同時求解,提出了同步發電機定子繞組內部故障的瞬態電磁場與多迴路耦合的數學模型。This paper studies an ac servo system with the permanent magnet synchronous motor ( pmsm ) as the executive component. the disadvantages of the conventional methods of ac servo system are demonstrated by computer simulation and by analyzing the mathematical models of the pmsm and the vector decoupling control strategy. then, an improved double - pi combined with variable structure servo controller is proposed
通過對永磁同步電動機的數學模型和矢量解耦控制策略的理論分析,以及基於雙pi結合單p位置調節的伺服系統的模擬實驗,揭示出經典的伺服控制方法的缺陷,並提出了一種改進的雙pi結合變結構的三閉環調節的伺服控制器設計方案。分享友人