曲率變半徑 的英文怎麼說

中文拼音 [qūlǜbiànbànjìng]
曲率變半徑 英文
radius of curvature
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 半 : Ⅰ數詞1 （二分之一） half 2 （在 中間的） in the middle; halfway 3 （比喻很少） very little; the l...
  • 徑 : Ⅰ名詞1 （狹窄的道路; 小路） footpath; path; track 2 （達到目的的方法） way; means 3 （直徑的簡稱...
  1. The load displacement curves and the ultimate strength of each member are presented. effects of beam length, radius of curvature and flexural - torsional rigidity on ultimate are considered

    通過試驗研究，給出每個構件的荷載位移曲線和極限承載力，得到了曲梁承載力隨跨長、曲率半徑以及截面尺寸的變化規律。
  2. Oxygen diffusion transport and electrochemical reaction in the oxygen cathode of direct methanol fuel cell ( dmfc ) have been expressed with the tffa model. model calculation has been carried out to investigate the effects of structural parameters of the dmfc cathode on the electrode performance, which is respectively represented by the curve of cathode overpotential versus current density. much attention has been paid to parameters including the porosity of the reaction layer, the thickness of the thin - film on the flooded - agglomerate, the radius of the flooded - agglomerate, the volume fraction of the flooded - agglomerates in the reaction layer

    本文首先運用tffa模型描述直接甲醇燃料電池（ dmfc ）陰極氧氣的傳遞和電化學反應過程，研究了過電位-電流密度曲線受陰極結構參數變化的影響程度，其中著重考慮了以下幾個參數：催化層的孔隙率，浸漬聚集體薄膜的厚度，浸漬聚集體的半徑，浸漬聚集體在催化層中的體積分數。
  3. The model developed previously is used in calibrating the threshold value of both comfort level and convenience index of roadway alignment, and in developing safety analysis model for some existing black spots

    本文在大量行車實驗數據的基礎上，分析得到如下成果: 1 ）在平曲線半徑上定性、定量的分析了加速度、速度與心率增長率的變化關系和模型。
  4. By means of curvature estimation of vertices, arc identification and arc grouping, a set of profile curves are computed to describe a rounding feature. meanwhile, a rounding mesh is extracted from the mesh model. ( 2 ) approaches of feature - based local modification on shell meshes are studied

    提出了一種等半徑及變半徑圓角過渡特徵的提取演算法，採用二次曲面擬合估算出網格頂點的主曲率，根據網格過渡區域的曲率特性，計算出一系列截面輪廓線來描述圓角過渡特徵，同時將過渡區域數據從模型中分離。
  5. With the different loading ratio of parallel to axis and normal to axis direction, damage defects will occur bulking problem. by varying the degree of material anisotropy relative to the loading axis such as poisson ' s ratio and shear modulus, crack growth bulking strain value parallel to or normal to the loading axis is different. the parameters controlling the growth or arrest of the delamination damage are identified as the geometry and the depth of defects and radius of cylindrical etc. at last, it was investigated that the delamination damage is often induced by the tip of matrix damage under higher stress

    研究結果表明:殼體筒段受軸向拉伸和內壓載荷作用時，軸向和環向載荷的比率不同，母層和子層可能發生拉伸屈曲，也可能發生收縮屈曲，或者同時發生拉伸和壓縮屈曲;母層與子層各向異性存在差異，即泊松比與剪切模量不匹配時，將使子層板的邊界上承受壓縮和剪切作用，當分層達到臨界狀態則發生屈曲，當母層與子層的各向異性差異越大，則發生分層屈曲的可能性越大;分層損傷的屈曲應變值與子層自身的彈性模量、分層子層的形狀、厚度以及圓柱半徑等因素有關。
  6. On the basis of 3d modeling and virtual prototyping technology and energy saving transformation method for parameterized simulation moving beam typed oil suction pump, and using the eccentric gear reducer to replace the ordinary gear reducer to let the driving radius of eccentric gear be kept a variation of similar tendency with the load of crank in order to improve load property of the motor, thus raised the working efficiency of the entire oil suction pump and achieved the effect of energy saving

    摘要基於三維建模和虛擬樣機技術，參數化模擬游梁式抽油機節能改造方法，用偏心齒輪減速器代替普通齒輪減速器，使偏心齒輪驅動半徑和曲柄負載保持同趨勢變化，以改善電機負載特性，提高整個抽油機的工作效率，達到了節能的效果。
  7. Chapter 2 : using a so - called variance matrix, we studied the propagation and the focusing characteristics of the paraxial light beams. the quantities characterizing the gross features for a paraxial optical beam, such as the beam width, the divergence, the curvature radius of the wavefront, the complex beam parameter q. and the beam quality factor, are related by using variance matrix

    第二章：闡述了常數折射率介質中光束的傳輸和聚焦，建立了表徵傍軸光束總的特徵的量，如：束寬、衍射發散角、波前曲率半徑、復光束參數q與變換矩陣的關系，得到了光束質量因子和變換矩陣行列式的定量關系。
  8. In chapter 3, the elegant hermite - cosh - gaussian beams as another special case in hermite - sinusodiol - gaussian family is introduced and its propagation properties through a first - order optical abcd system are investigated. an analytical solution of the elegant herimite - cosh - gaussian beam propagating through a first - order abcd system is derived, and correspondingly, the closed - form m2 - factor, the beam width, the curvature radius and the power in bucket are presented analytically. the numerical investigations are carried out and show that the m2 - factor of elegant hermite - cosh - gaussian beam is greater than that of elegant hermite - gaussian beams and less than that of hermite - gaussian beams approximately

    本文得到的主要結果可歸納為：首次用強度矩的方法研究了hermite - cosh - gaussia （ hchg ）光束，得到了hchg光束的束寬、曲率半徑、 m ~ 2因子、瑞利距離等的解析表達式；用陡峭度和pib參數去衡量hchg光束的光束質量，找到了hchg光束在傳輸過程中影響光束質量的因素並得到了變化規律；證明了hchg光束在傳輸過程中的重心和對稱性都會得到保持。
  9. The structure of field emission triode is first simulated by magic. the tip height, tip position, tip curvature, gate aperture, and gate voltage are changed, to observe the emission current and the electron congregation

    本課題首先採用magic軟體對三極體結構的尖錐場發射陰極進行了模擬計算，分別改變尖錐高度，錐尖位置，尖錐曲率半徑，柵極孔徑及柵極電壓，觀察陽極收集電流及電子束的會聚情況。
  10. Based on the theory of thin - walled curved bar, reasonable hypothesized a third - ord parabolic curve, the paper adoptes variational method on energy, taking the coupled relationship of the effect of curvature radius, bend, torsion and shear - lag into consideration, establishes the elastic governing differential equation and boundary conditions for thin - walled curved box girders, which set the foundation of theoretical analysis of shear - lag effect in thin - walled curved box girders

    摘要文章以薄壁曲桿理論為基礎，合理地假設了三個剪力滯翹曲位移函數，應用能量變分法推導出考慮曲率半徑影響、彎、扭、剪力滯耦合的曲線箱梁彈性控制微分方程及其邊界條件，為薄壁大麴率箱梁剪滯效應建立了理論分析基礎。
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