矢量方程式 的英文怎麼說
中文拼音 [shǐliángfāngchéngshì]
矢量方程式
英文
vector equation- 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
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 方程式 : capeta
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The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given
利用坐標旋轉后球坐標變量間的關系和連帶勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式;以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系,寫出了引入二階矢量位的過程;以時諧場矢量邊值問題為例,闡明了不同坐標系下電磁場解的相互轉化原理,給出了一個解析解的轉化例子;在球坐標下,引入了較球矢量波函數更普遍的兩類矢量函數,給出了其在球面上的正交關系。Abstract : in this paper , a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived , such as , the position vector for the incident point , the scalar expression for reflected ray , scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed
文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性,導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程,並研究了掃描遠場的非對稱性。Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array, a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the euler ' s theorem and the coordinate transform is introduced. the dynamic equations of minehunting sonar array with the state matrix form are founded by settling the dynamic models with the vector form. so it offers theory foundation for analyzing the dynamic characteristic and designing robust control
由於獵雷艇作為動基座的存在和聲納基陣的框架結構特點,提出了以艇體坐標系為運動坐標系,運用變形的歐拉定理和坐標變換建立聲納基陣相對自身坐標系的旋轉運動方程的建模思想;將所建立的矢量形式的動力學模型展開整理,獲得了狀態矩陣形式的獵雷聲納基陣動力學方程,為系統動力學模型的實用化奠定了基礎。The website is running on the intranet and it works well. this dissertation provides a new method to manage the parts " drawings, which is applicable to not only dryland machines " parts drawings but also all kinds of machines " parts drawings
本研究為工程圖紙的電子化管理提出了一種新的方案,並利用了web技術實現了dwf格式電子圖紙數據庫存取和矢量圖形網上瀏覽,在降低用戶軟體要求的基礎上,實現圖紙的管理應用。The client uses the scheme based on browser and java applete together. the map display mode uses the scheme based on vector map and grid map. thus the better combination of functions with load can be gained through respective strongpoints
客戶端採用了基於瀏覽器和java小應用程序的結合方案,而地圖的顯示方式也採用結合矢量圖和柵格圖的方案,這樣可以利用各自的優點來達到更好的功能負載結合點。The acceptability our rejection and the depiction of some content in the course " mechanisms and machine theory " is discussed, ( e. g., group dividing, solving steps of the graphical method for vector equation, versions and methods for analytical kinematic analysis, inversion design for linkage mechanisms, crank angle between the two limiting positions, design formulae for cam mechanisms, classification of combined mechanisms, formula of the radius of addendum circle of gear, balancing of machinery, etc. ) and some new opinions are presented
摘要就《機械原理》課程的某些內容(如:拆桿組的方法、矢量方程圖解法的解題步驟、運動分析解析法的版本和方法、連桿機構的反轉法設計、極位夾角、凸輪機構設計公式、組合機構的分類、齒輪齒頂圓半徑公式、機械的平衡等)的取捨和敘述進行探討,提出一些新的看法。Based on the semi - vector wave equation under cylindrical coordinate system, the mode distribution and complex propagation constant in bent waveguides were computed by a finite difference method with perfectly matched layer ( pml ) boundary condition
摘要以柱坐標下的半矢量波動方程為基礎,採用基於完美匹配層( pml )邊界條件的有限差分方法,對彎曲波導進行模式求解,進而得到波導彎曲引起的輻射損耗。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。In the paper, based on the method of low pair replacing with high pair, the problem of cam design was transferred to that of linkage design. by means of rotary unit vectors, the equations of displacement, velocity and acceleration of the replacement mechanisms were developed. and then, the virtual linkage ' s length and direction were deduced
論文基於高副低代原理,將平面凸輪機構設計與再現函數的平面連桿機構設計統一為同一種方法,運用圓向量函數建立代換機構的位移、速度、加速度矢量方程式,求取虛擬連桿桿長和方向,由此展開凸輪理論廓線、實際廓線、曲率半徑和壓力角的求解,並得出用圓形刀具加工凸輪時刀具中心的軌跡方程。The application background of thrust vectoring technology on aircraft and its advantages are analyzed. the main characteristics of some type of vectoring nozzles are discussed, the expression of thrust vectoring force and moment are set up. then, the nonlinear motion equations of aircraft with three axes of thrust vectoring are deduced
本文主要針對推力矢量飛機非線性飛行控制的理論和應用問題進行了一定的探索和研究,進行的主要工作有: 1 、研究了推力矢量在飛機上的應用背景和收益,分析了現有推力矢量噴管的主要形式和特點,給出了推力矢量力、力矩的數學模型,並在此基礎上推導了帶三軸推力矢量飛機的非線性運動方程,為控制律的設計奠定基礎。Firstly, a simple and practical representing method of the tooth edge tangential vector is applied to replace the traditional differential formula, the simple solving technique of edge contact problem makes the geometric edge contact analysis of the complex curve surface realize. secondly, using numerical searching and mathematical programming method solves the contact directions and loaded contact problem. finally, whole numerical simulation method is provided for loaded tooth contact analysis of high contact ratio spiral bevel gears
首先以一種簡單實用的輪齒邊緣切矢量的數學表示方法取代了經典的微分表達式,大大簡化了幾何邊緣接觸的求解,使復雜曲面的幾何邊緣接觸分析得以實現;其次又採用數值搜索與數學規劃法求解了邊緣接觸的主方向和承載接觸問題,為高重合度弧齒錐齒輪承載嚙合全過程的數值模擬提供了完整的方法。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。And the basic two - dimensional transient state equations for semiconductor device are dispersed and linearized. the matrix - vector form of the basic functions is get. and the solution methods are also discussed
離散和線性化了二維瞬態半導體基本方程,並得到了其矩陣-矢量方程形式,同時還討論了其求解的方法。In this paper, according to the equation of voltage vector of single - phase motor operating at symmetrical condition, author presents a new voltage - vector pwm method of variable frequency control for single - phase motor. in system, the voltage vector is used as a control parameter
本文根據單相電動機對稱運行時的合成電壓矢量方程,提出了以合成電壓矢量為控制量的單相電動機電壓矢量式pwm變頻調速控制方法,並進行了計算機模擬及製作了單相變頻器。Besides, successfully calculating the electromagnetic four - potential in the spacetime of charged black hole expressed by the generali zed spherical coordinate and furtherly solving the h - j equation of such spacetime make it possible to get the exact description of the energy extent of nonthermal radiation particle and to study the characteristics of such black hole ' s nonthermal radiation
另外,本文還求出了一類用扁橢球坐標表示的荷電黑洞時空中的電磁四維勢矢量,從而成功地求解了此類彎曲時空中的hh方程,得到了這種非熱輻射粒子能量范圍的精確表達式,從而對這類黑洞的非熱輻射特徵進行了研究。After analyzing the mathematical model of wind turbine and doubly - fed induction generator, a schematic is given about the power flow in the wind turbine and generator and a static equivalent circuit is shown as well. then, through the reference frame transform, the electromagnetic equation, dynamic equivalent circuit, and vectorgraph of doubly - fed generator can be gotten in the dq reference frame. in virtue of the general dynamic equivalent circuit, it produces a asymmetry equivalent
本文在對風力機和雙饋電機進行了數學分析后,給出了功率在風力機和雙饋電機中的流動過程圖解,同時給出了雙饋電機的穩態等效電路;然後,經過坐標變換,進一步得出了同步坐標系下雙饋電機的基本電磁方程、功率方程、動態等效電路和綜合矢量圖,並藉助通用動態等效電路的形式,得出了便於定子磁鏈分析的不對稱等效電路。Using maxwell electromagnetic equations, by solving the boundary - value problem of magnetic vector potential, analytical expression to impedance increment of the solenoid coil in eddy current testing of the medium in half space was given. theoretical result was modeled in computer. results showed the validity and feasibility of the model
利用maxwell電磁方程組,通過求解矢量磁位的邊值問題得到了矢量磁位的解析解,進而導出了媒質上方放置式空心線圈的阻抗增量解析式,並對阻抗變化表達式進行單層板厚度和三層板間隙的檢測模型進行了模擬。The solving steps are as follows : the field is divided into three regions by the cylindrical surface of the finite - length cylinder and the location of the delta - coils. because " the surface current source is placed at the interface, the non - homogenous restricted equation on the magnetic vector potential is transformed into the homogenous helmholtz equation. by using the method of separation of variables to solve equation and according to the interface conditions and the condition at infinity to determine the unknown constants, the expressions for the magnetic vector potential of the three regions are solved out
在求解過程中,假定放置式圓柱線圈是由無窮多個對稱圓環線圈密饒而成,首先求解含有有限長磁芯的通電對稱圓環線圈的電磁場:以有限長圓柱磁芯的側面和圓環線圈所在圓柱面為分界面將場域劃分為三個小區域,由於場源放置在內邊界面上,使得關于矢量磁位的非齊次約束方程轉化成齊次亥姆霍茲方程,利用分離變量法求解,根據分界面鄭州大學碩十研究生畢業論文摘要條件以及無限遠條件確定待定常數,從而得到各場區矢量磁位的表達式。Then 3d gis and its construct is introduces briefly, and the relevant background and theory are studied, such as picture segmentation, pattern recognition and vectorization technology, etc. it is discussed in detail how to realize the data entry of contour lines ( include extraction, pretreatment, vectorization and making dem ) in 3d gis by using computer graphics, image processing and visualization programming technology, and a complete set of concrete scheme to design a system recognizing automatically contour lines from scanned data of map is put forward
論文從地理信息系統領域研究應用的歷史和現狀入手,簡要介紹了三維地理信息系統及其構成,研究了相關的背景與理論知識,如圖像分割、模式識別和矢量化技術等等。論文重點闡述了如何運用計算機圖形學、圖像處理、可視化編程技術等實現三維地理信息系統等高線要素的數據輸入(即提取、預處理、矢量化和網格化生成dem數據高程模型這幾個基本內容) ,並提出了地圖掃描數據等高線自動識別系統設計的一整套具體方案。The vector equations are set up for four loop of one kind of nine - link barranov truss by complex number vector method, and the four equations are changed into complex exponential number form
摘要使用復數向量法對9桿巴氏桁架4個迴路建立幾何關系,列出矢量方程組並轉化成為復指數形式。分享友人