曲線四邊形 的英文怎麼說

中文拼音 [qūxiànsìbiānxíng]
曲線四邊形 英文
curved quadrangle
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 四 : Ⅰ數詞（三加一后所得） four Ⅱ名詞1 [音樂] （中國民族音樂音階上的一級） a note of the scale in gong...
  • 邊 : 邊Ⅰ名詞1 （幾何圖形上夾成角的直線或圍成多邊形的線段） side; section 2 （邊緣） edge; margin; oute...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  • 邊形 : n-gon
  1. A pair of new inodorous halfsilk black ladies hose, a pair of new violet garters, a pair of outsize ladies drawers of india mull, cut on generous lines, redolent of opoponax, jessamine and muratti s turkish cigarettes and containing a long bright steel safety pin, folded curvilinear, a camisole of baptiste with thin lace border, an accordion underskirt of blue silk moirette, all these objects being disposed irregularly on the top of a rectangular trunk, quadruple battened, having capped corners, with multicoloured labels, initialled on its fore side in white lettering b. c. t. brian cooper tweedy

    一雙嶄新沒有氣味半絲質的黑色女長筒襪，一副紫羅蘭色新襪帶，一條印度細軟薄棉布做的大號女襯褲，剪裁寬松，散發著苦樹脂素馨香水和穆拉蒂牌土耳其香煙的氣味，還別著一根鋥亮的鋼質長別針，折疊成曲線狀。一件鑲著薄花邊的短袖麻紗襯衣，一條藍紋綢百褶襯裙。這些衣物都胡亂放在一隻長方形箱蓋上：四邊用板條釘牢，四角是雙層的，貼著五顏六色的標簽，正面用白字寫有首字b . c . t布賴恩庫珀特威迪。
  2. Nonlinear bending of simply - supported creep - damaged rectangle plate

    四邊簡支矩形板的蠕變損傷非線性彎曲
  3. Its accomplishment is simple and intuitional. the main innovation of this method is that we only need construct a symmetric zonal mesh for each interpolated curve respectively and write appropriate knot spacings for mesh edges. then applying nurcc rules to the initial control polygonal mesh consisting of those symmetric zonal meshes can generate a surface that satisfies interpolation constrains

    該方法的主要創新思想是在被插值曲線的控制多邊形兩側構造具有簡單對稱性質的四邊形網格，稱為對稱網格帶，但關鍵還在於對網格邊賦予適當的節點距，並對由這些對稱網格帶組成的初始控制網格應用非均勻有理catmull一clark細分規則，來生成滿足插值要求的曲面
  4. In the third chapter, we present a class of c2 - continuous spline curves of degree 4 with some shape parameter. the segmented curves are all shape preserving to given polygon

    第三章提出一類c ~ -連續的帶有形狀參數的四次樣條曲線，曲線上的所有曲線段的控制頂點由給定多邊形的頂點直接計算產生。
  5. ( 3 ) by using an elastic - plastic material model, the nonlinear analysis is taken on the rectangular tube and simply supporte d plate, and the ultimate carrying load capacity pu is obtained. the results show that the buckling mode is in accordance with the assumption of elastic analysis, and so shows the ultimate mode

    （ 3 ）採用彈塑性模型，考慮幾何非線性理論，利用ansys軟體對矩形鋼管考慮板組相關屈曲影響和不考慮相關屈曲影響（將矩形管板件按四邊簡支板對待）兩種情況進行了屈曲後分析，分別得出其極限承載力p _ u ，並分析了矩形管的屈曲過程。
  6. In the forth chapter, we proposes an approach of constructing planar piecewise bezier curve of 3rd 4th and 6th degree with all edges tangent to a given control polygon and the curve segments are joined together with c1 c2 and c3 - continuity. the segmented bezier curves are all shape - preserving to their tangent polygon

    第四章討論與給定多邊形相切的分段三次、四次、六次b zier曲線，所構造的曲線c ~ 1 、 c ~ 2 、 c ~ 3 -連續，並且對切線多邊形是保形的。
  7. The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data

    採用面元法預報大側斜螺旋槳水動力性能，螺旋槳表面及尾渦面離散為四邊形雙曲面元，每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言，槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元，這容易使槳葉表面速度的計算結果不正確，甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法，能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件
  8. On the assumption of ignoring the distortion of thickness, this paper determines the rough shape by the geometric modeling method of equal area developing using mixed mesh cell of triangle and quadrangle for the first time, presents the equal area developing arithmetic of quadrangle - triangle. on the virtual geometric symmetry axis, we puts forward the method of determining the developed coordinate of the point on the base band in the development of using regular quadrangle cell, determines the developed shape of internal structure in plane utilizing point - to - point mapping theory. furthermore, we realize the approximate developing of undeveloped - irregular boundary surface using a few triangle cells

    本文結合型號研製中小曲率機翼整體壁板類零件坯料展開課題，基於板料厚向變形忽略不計的先驗假設，首創混合四邊形-三角形網格等面積展開的幾何模擬法確定壁板類零件毛坯外形，給出了混合四邊形-三角形網格等面積展開演算法；提出了虛擬分割線的概念，採用虛擬幾何對稱軸，給出了規整四邊形單元展開基帶上結點的計算方法；採用映射原理和求交演算法確定了壁板內部結構信息的展開定位。
  9. The main achievements are as follows : 1. based on the idea to blend a nuat b - spline curve with a singularly parameterized polygon according to parameter, a local interpolation method is presented for nuat b - spline curve, by which a c ~ 2 nuat b - spline interpolating curve of order 4 without solving a global linear system of equations is generated. 2

    主要研究結果如下: 1 .提出了一種局部插值方法，將一條nuatb樣條曲線和一個奇異參數化多邊形按混合因子相混合，不需求解方程組就能生成一條c ~ 2連續的四階nuatb樣條混合插值曲線
  10. The author acquires three main results, i. e. an approach of constructing polynomial curves with some shape parameters, c2 - continuous spline curves of degree 4 with some shape parameter, and planar piecewise bezier curve of 3 4th and 6th degree with given control polygon and the curve segments are joined together with c1 c2 and c3 - continuity

    作者在後三章得到了本文的三個主要結果： （ 1 ）構造了一種帶形狀參數的多項式曲線； （ 2 ）構造了一類c ~ -連續帶形狀參數的四次樣條逼近曲線； （ 3 ）構造了與給定多邊形相切的可調控保形分段c ~ 1三次、 c ~ 3六次b zier樣條曲線。
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