橢圓幾何 的英文怎麼說

中文拼音 [tuǒyuán]
橢圓幾何 英文
elliptic geometry
  • : Ⅰ形容詞(卵形) oval-shapedⅡ名詞[書面語] (長圓形的容器) elliptic vessel
  • : 幾代詞1. (多少, 用於詢問數量和時間) how many 2. (表示不定的少數目) a few; several; some
  • 橢圓 : [數學] oval; oval shaped; ellipse; ellipsoid橢圓規 ellipsograph; [圖] elliptic trammel; 橢圓軌道 ...
  1. Including the importing of the elliptic ctirve, the geometrical meaning of the operation on the curve, the finite fie1ds and domain parameters on the curve

    包括曲線的引入、曲線上運算的意義、有限域上的曲線以及曲線域參數的含義。
  2. The movement inbeing of the ultrasonic motors, two type form method of elliptical movement are deeply investigated. its driving mechanism is studied also by geometric method. the ordinal progressing condition of a forced traveling wave in the elastic plate is investigated

    研究了超聲波馬達的驅動機理,對超聲波馬達驅動的本質? ?運動的兩種形成方法進行了詳細研究,利用分析法研究了行波超聲波馬達的傳動機理,分析了定子彈性體中行波有序傳播的條件。
  3. ( 2 ) the causation that the caustic phenomena of electromagnetic wave propagation in two - dimension concave reflectors occurs and the types of singularities in caustic fields are investigated, and the conclusion that there are two types of singularities ( fold and cusp ) in caustic fields in two - dimension concave reflectors is obtained ; by symplectic geometrical method, formulations of computing wave fields in and far away from caustic fields in two - dimension concave reflectors are deduced, and the results are plotted in pictures. ( 3 ) the cause of the caustic phenomena of electromagnetic wave propagation in three - dimension concave reflectors and the types of singularities in caustic fields is discussed, and the conclusion that there are three main types of singularities ( fold, cusp and swallowtail ) in caustic fields in three - dimension concave reflectors is obtained ; by symplectic geometrical method, the formulae of computing wave fields in and far away from caustic fields in three - dimension concave reflectors are deduced. particularly, the wave fields in ellipsoid concave reflector are computed, and the results displayed in special sections are given

    論文主要包括三個方面: ( 1 )分析了凹面反射的焦散現象,給出了不同凹面反射的焦散圖; ( 2 )分析了二維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類,得出了二維凹面反射波動場焦散區奇性主要有折疊( fold )和尖點( cusp )兩種的結論,利用辛方法構造了錐曲面反射波動場非焦散區和焦散區的通用計算公式,並給出了柱面、柱面及雙曲柱面反射的計算結果; ( 3 )分析了三維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類,得出了三維凹面反射波動場焦散區奇性主要有折疊( fom 、尖點kusp和燕尾k )三種的結論,提出了利用辛方法計算三維凹面反射波動場非焦散區和焦散區的計算方法,並給出了三軸不等球體凹面反射波動場的計算結果剖面圖。
  4. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地關系入手,舍棄傳統星載合成孔徑雷達研究中的球地球模型和軌道模型,研究了在地球球模型和軌道模型下由雷達天線確定目標坐標的方法,並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體,完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析,最後完成雷達回波信號的模擬。
  5. The geometric nonlinear analysis of three types of large - span annular cable truss structures is put forward by using commercial fem program. their static properties in deferent load case are concluded, and some suggestions for actual projects are also presented. base on the prime realization of its static property, parameter analysis of its static property is done consisting of deferent number of truss, deferent height of truss, deferent scale of height of masts, deferent boundary condition and deferent magnitude of pre - stress in deferent load case

    本文利用通用有限元軟體ansys對大跨度環形空腹索桁結構體系中三種典型的結構(即內外圈都為形、外圈形內圈形、內外圈都為形的三種外形的結構)進行了非線性分析,總結出各自在不同荷載工況下的靜力性能,並提出一些有實際工程意義的建議。
  6. Established the system of coordinates of roll testing, getting the parameters of equation of tooth face by solving the non - linear equations set ; according to the differential geometry and meshing principle, deduce the curvature parameters of tooth face and tooth profile, and get the parameters of instantaneous contact ellipse. emulate the contact trace and contact area of the working tooth face, and drawing the instantaneous drive ratio error curve

    建立了克林貝格擺線齒錐齒輪嚙合分析的對滾模型,通過對非線性方程組的迭代求解,得到齒面方程的各個參數;由微分和切齒嚙合原理推導了齒面上齒廓和齒線方向的曲率參數,得到了瞬時接觸的參數。根據設計參數和機床調整參數繪制了工作齒面的接觸軌跡和接觸區圖形,並求得了瞬時傳動比的誤差曲線。
  7. The laser power is detected through the pd ’ s movement across the faculous region. when the value of the peak value of laser power is got, the power of the facular boundary points can be found according to definition of the facular boundary such as “ 1 / e ~ 2 ” theory. then the equation of the facular boundary can be made fitting by using the least square method, and calculate the beam divergence at last

    採用兩個光電探測器分別檢測光束不同高度上的兩個光斑,在確定光斑中心最大光強值后,根據光斑截面尺寸的1 / e2定義,得到光斑截面邊界點的光強值,並以其為標準判定光斑截面的邊界點,對探測到的邊界點通過最小二乘法進行擬合,得到光斑截面的方程,根據空間關系求出發散角。
  8. Employing perturbation method and numerical simulation, we study the flow in rotating helical pipes including different rotations, different cross sections ( circular, elliptical, annular and square cross section ), and different geometrical structures

    採用攝動方法和數值計算方法,研究了處于多種旋轉狀態下、多種截面形狀(截面、截面、環形截面、矩形截面) 、不同結構旋轉螺旋管道流動。
  9. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of faber series. a hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. the state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and yamada - sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up

    首先基於經典層板理論,將復合材料層板的彈性問題化歸為均勻各向異性板來求解;採用各向異性體平面彈性理論中的復勢方法,以faber級數為工具,給出了有限大含核各向異性板彈性問題的級數解形式;利用雜交變分原理,成功導出含核各向異性板雜交應力有限元,並用算例驗證了該單元的可行性和有效性;採用含剛度折減形彈性核的沖擊損傷模型,引入基於特徵曲線和yamada - sun破壞準則的點應力判據,建立了含損傷復合材料層板剩餘強度的分析方法;通過數值計算詳細討論了各種參數對損傷層板應力分佈、剩餘強度的影響,得到了一系列對工程應用具有實用價值的結論。
  10. The crushing force is produced by the moving jaw, which moves elliptically so that the feed material is crushed between the two crushing jaws

    鼠籠式破碎空間。靈活的搖桿呈形運轉,起到改變破碎區域的空間的作用,從而使物料在顎板間得到破碎。
  11. This provides an extremely lightweight and strong racing machine, where the geometry of the frame is tailored by working the tube sets to create the perfect ride. at hang lun we take the design, fabrication, and material selection process very seriously, creating the best product possible for the intended application ; making bikes go fast

    為了使車架的設計更加完美並滿足輕量化學結構空氣動力學的要求,管材的加工採用專用的設備保證其精密的尺寸,管形被設計加工成水滴錐管垂直等各種形狀,再經過工藝要求很高的氬弧焊接和外表面的手工打磨處理。
  12. The most important idea is that over the complex numbers, an elliptic curve looks like a torus, and the points of finite order in the group of the curve have a very simple geometric description

    最重要的思想是復數域上的曲線是一個環面,曲線簇中的有限階點有簡單的描述。
  13. The fifth chapter investigates the dynamic relationship between geometry and architecture based on ellipse ' s geometric character, and analyzes ellipse architecture ' s characters in symbolism, dualism, diversity and unity these four facets. in the sixth chapter, taking ellipse architecture as examples, i try to explore the relationship between the more general geometry ' s purity and architecture ' s complexity, and build the foundation for future exploration of geometry ' s purity. in the seventh chapter, using typology contrast methodology, i analyze two architects with quite different design theories - tadao ando and koolhaas " adoption of ellipse, and taking position relationship as clue, combine ellipse and other geometric forms together to generalize the effect of geometry ' s purity to architecture ' s complexity in usual situations

    第四章從歷史和現代兩個方面展開了大量對形式在建築中應用的個案和實例的研究與對比,探討了形式在歷史上意義的變遷;第五章以特性為立足點,研究了橢圓幾何- -建築之間的動態關系,從標志性,二元對立,多樣和統一四個方面分析了建築的特點;第六章以建築為例,嘗試探討了更一般的的純粹性與建築的復雜性的關系,對純粹性意義的挖掘為進一步的研究提供基礎;第七章採用了類型對比的研究方法,分析了安藤忠雄和庫哈斯兩位設計哲學截然不同的建築師對形式的使用;另外,以位置關系為線索,將和其他的形式結合起來,總結了一般情況下的純粹性對建築復雜性的作用。
  14. Abstract : based on the basic concept of the revolving shell, the equation of the middle surface generatrix of the approximate ellipsoid portion of the ellipsoidal head is derived, the unwrapped area and the unwrapped diameter of the ellipsoidal head are calculated, the result is compared with that of derived from the real ellipsoid and that of calculated from the empirical equation, relative chart and code are given out, which could be used by manufactures for reference

    文摘:根據回轉殼體的基本概念,推導了封頭的近似殼部分的中面母線方程,據此推導計算了封頭的展開面積及展開直徑,並根據形狀推導的結果與經驗公式所得結果進行了比較,給出了有關圖表及計算程序,可供製造單位參考使用。
  15. The concept of ellipse is extended to hyperbolic space and the equation is discussed. some geometric data of ellipse, such as symmetries, will be considered

    摘要在雙曲空間中引進相應的概念、討論的方程,並對的對稱性等性質做出細致考察。
  16. The paper analyzed the struture of the tri - eccentric butterfly vavle at length, defined the tri - eccentric butterfly valve, educed the geometry function and its characteristic about the section of the butterfly disc. the results indicate : the parallel contour line across butterfly disc thickness is normal ellipse, thereby eslablished function relations between its geometry parameters ( long axis and short axis ) of three primary sections of the butterfly disc and the tri - eccentricity ; in order to avoid interference between the butterfly disc and the valve seat as well as the valve body, combining the torque, we obtained the feasible range about the rotation center of the tri - eccentric butterfly vavle

    本文主要分析了三偏心蝶閥的結構,給出了三偏心的定義,推導出了蝶板截面的方程及其性質,結果表明,沿蝶板厚度的平行截面輪廓線為標準的形,進而推導出了蝶板個主要截面的參數(長軸、短軸)與三個偏心之間的函數關系;考慮到蝶板啟閉過程中避免與閥體及閥座發生干涉,結合蝶板的啟閉扭矩,確立了三偏心蝶閥回轉中心的適宜區域。
  17. The geometrical relation of elliptic imaging is studied for welding seam image of the butt welds in straight tubes. the region model of welding seam image is proposed, it furnishes a evidence theory to further process to welding seam image

    哈爾濱工程大學博士學位論文一針對具體的鋼管直管對接焊縫圖象,研究了其成象的關系,提出了焊縫圖象區域模型,為進一步處理焊縫圖象提供了理論依據。
  18. This dissertation adopts the modularization programming method to develop the spaceborne sar system design and simulation software, which obtains the windows common interface and logical integrated structure, convenient for usage, maintenance and function extension. 2. as for the earth model and orbit model, according to the properties of spaceborne sar operation, in this dissertation, we reject the sphere earth model and circle orbit model and present a novel way to solve spaceborne geometry relations between radar and target by three ellipses, and achieve the way to determine the target position by antenna pointing direction

    在地球模型和軌道模型方面,論文根據星載合成孔徑雷達工作的特點,摒棄了球地球和軌道的傳統模型,創新性的採用三個解決了星載雷達的星地關系問題,得到了在地球球模型和軌道模型下由雷達天線指向確定目標坐標的方法,為星載合成孔徑雷達系統設計與模擬提供了更為精確的基礎。
  19. This technique also shows that it can simulate deformation effects constructed by other geometric primitives, such as ellipsoid and torus

    另外,利用擴展的曲線約束變形方法,還可以模擬諸如球和環體的變形效果。
  20. In this study, the effect of rotating elliptical inner cylinder on the instability of flow field, the relationship between azimuthal wave speed and the angular speed of inner cylinder, and the so - called ' hysteresis ' will also be investigated experimentally

    本文主要目的除了藉由實驗比較形截面內柱兩種系統加速過程中不穩定發生時機、流場流況的差異外;對于所謂的遲滯現象于兩系統中的發生過程亦將探討,此外內柱形狀所造成高階不穩定於周方向的波形相速度變化,也是本文的探討重點。
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