等距曲面 的英文怎麼說

中文拼音 [děngjùqūmiàn]
等距曲面 英文
equidistant surface
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 距 : Ⅰ名詞1 （距離） distance 2 （雄雞、雉等的腿的後面突出像腳趾的部分） spur （of a cock etc ）Ⅱ動詞...
  • 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...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 等距 : equidistance; isometry
  1. Contour - parallel and equidistant path - interval machining of composite surface

    組合曲面的空間環切等距加工
  2. Isometric algorithm for nurbs curve and surface and its application to nc machining

    曲面的等距演算法及其在數控加工中的應用
  3. The directrixes of the in former two transmissions are the loxodrome and the geodesic on the pitch cones, that of the latter is an equal - pitch line along the direction of straight generatrixes in the hyperboloid surface, also is the vertical trajectory of the straight generatrixes

    前兩種傳動形式的準線分別為節錐面上的斜航線與測地線，後者的準線為單葉雙曲面上沿直母線方向的等螺距曲線，且為直母線族的正交軌線。
  4. In the case of closed surface, we obtain the following result : theorem 3. 1 let m be a closed surface with parallel mean curvature direction in r4 ( ), which admitting an isometric deformation preserving mean curvature

    在閉的情況下，我們得到如下結果:定理3 . 1設m是r4 （約中平均曲率方向平行、非臍的閉曲面.若m容有保持平均曲率方向平行、且保平均曲率的等距變形曲面應，則m有常平均曲率
  5. In some time - critical situation, continuous ssi is computation bottleneck of some solid modeling system. conventional approach for solving continuous ssi often uses intersection algorithm iteratively without taking the characteristic of the surface into account to simplify computation. the dissertation analyzes the intersect curve structure of continue surface, from the point of intersect curve ' s evolution, it describes the relationship between topology of offset surface intersect curve and topology transmit point ( ttp )

    等距曲面和運動曲面在cad cam領域中有著重要的應用，在一些時間敏感場合例如數控加工動態模擬，等距曲面和運動曲面等連續變化曲面求交運算已成為這些系統的計算瓶頸，連續變化曲面求交問題的通常解法是採用曲面求交演算法反復迭代計算交線，沒有考慮連續變化曲面交線之間的相似性進行求交簡化，效率上一直不能有很大的提高。
  6. This thesis makes an in - depth study in three types of operations - evaluation for bezier curves and surfaces, offset approximation for bezier curves and rational bezier curves, degree reduction for nurbs curves and surfaces, all of which are of great importance in cagd researches

    本文圍繞cagd領域中的三類佔有重要地位的運算? ? b zier曲線曲面求值運算、 b zier曲線及有理b zier曲線等距變換以及nurbs曲線曲面的降階變換問題展開深入研究
  7. The first one is based on the offset surface of subdivision model. through mapping the original mesh node by node, the offset surface is generated. it can get the interference free tool - path directly from the offset surface without complex interference check and process

    然後實現了兩種精加工刀具軌跡生成方法，一種是基於等距面的截平面法，通過點對點法向映射的方法生成遞歸分割曲面模型法向等距面，由該等距面生成無干涉刀具軌跡。
  8. The author ' s work gives new way, which is beneficial to real time interaction and can efficiently reduce computing time as well as data storage amount. these algorithms can find good use in numerical machining, robotics, form - position tolerance and computer graphics. ( 3 ) degree reduction for nurbs curves and surfaces by applying the theory of the best uniform approximation of chebyshev polynomials and the explicit matrix representation of nurbs curves, this thesis centers on the research of the explicit nearly best approximation of multi - degree reduction of nurbs curves

    以上關于等距曲線的幾何逼近與代數逼近的演算法改革了當前國際圖形界只能對基曲線沿法矢方向平移定距離的點作近似逼近的固定模式，創造了利於交互操作，能有效地減少計算量及數據存儲量的新方法，可在數控加工、浙江大學碩士學位論文機器人、形位公差學、計算機圖形學中獲得很好的應用（ 3 ） nurbs曲線曲面降階應用nurbs曲線的顯式矩陣表示及chebyshev多項式逼近理論，以實現nurbs曲線顯式一次性降多階的近似最佳逼近為目標進行了研究
  9. Profile design of cam with cylindrical roller - followers by offset surfaces method

    圓柱滾子從動件凸輪廓面的等距曲面設計方法
  10. Through approximating the deformation space by using curve and surface offset techniques, we obtain a unified space deformation model. thus the sampling problem is solve naturally at the same time, we provide a unified kernel for the implementation of different space deformation models

    通過對曲線、曲面控制變形中的變形空間進行等距逼近的方法，我們實現了一個一維、二維、三維控制手段的統一空間變形模型，這種統一不但自然地解決了曲線、曲面控制變形中的采樣問題，同時為實現各種空間變形提供了一個統一的數學模型。
  11. Its content may be separated into two parts. the first part contains chapter one and chapter two, which treat of the harmonic maps from surface into symplectic groups and quaternion grassmann manifolds. the second part contains chapter three and chapter four, which treat of local isometric immersions from space forms or riemannian products of space forms into space forms

    全文分四章，內容可分為兩部分：第一部分包括第一、二章，主要論涉從曲面到辛群及四元grassmann流形的調和映射；第二部分包括第三、四章，主要論涉從空間形式或空間形式的局部riemann積到空間形式的局部等距浸入。
  12. To machine the honeycomb sandwich, an interpolation method based on a rotary axis is also studied. with the round vector function and rotary movement group, a model of the error curved surface of the theoretical ellipsoid is set up to describe the actually measured surface

    以圓矢量函數和回轉運動群為工具討論了曲面的誤差變換，利用理論橢球面的誤差曲面建立了實測曲面的數學模型，通過求解理論曲面的法線實現了實測曲面的等距計算和陰陽面數據轉換。
  13. Based on the principle of inclined offset surface, the calculation and generation of nc cutter location for small divided area of blade were introduced. in addition the computer simulation and the path chart of cutter center were given to prove the tool path

    在每一段曲面上，基於斜等距曲面的原理，推導出葉片分段側銑加工時刀位軌跡的生成和計算；並用計算機模擬和刀心軌跡圖對刀位進行了驗證。
  14. Because the curvature of surface itself may vary in a large domain, it induces an upper limit of feasible offset distance. the author proposed a method to estimate the offset distance

    由於曲面本身曲率變化，導致曲面可等距距離存在一個上限，本文通過對細分曲面進行分析，給出了一種細分曲面可等距距離的估計演算法。
  15. But this method can ’ t be used to generate tool - path for the kind of surfaces whose curvature varies sharply, since singularity may appear when creating the offset surface. it is computation expensive to resolve the singularity

    但曲率變化大的曲面在生成等距面時發生自交，曲面的自交處理計算復雜，降低了基於等距面的刀具軌跡計算速度。
  16. A plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line

    拋物線到一固定直線和不在直線上某一固定點等距的點的軌跡所形成的平面曲線
  17. Offset error, which is a basic problem in subdivision surface, is also presented in the paper

    作為細分曲面等距的一個基本問題，本文還對等距曲面誤差進行了分析。
  18. At the same time, for the equidistant surface in practical measurement, special search method is applied for automatic segmentation, so the normal vector of the data at arbitrary position of the space is solved, then radius compensation of probe is implement. so the return is realized from equidistant surface to real measurement surface

    針對實際測量中得到的等距曲面，採用空間搜索的方法對數據點分塊，求取了任意測量點法矢，提出了測頭半徑的補償方案，從而實現了由空間等距曲面到被測曲面的復原。
  19. It presents algorithms to extract the similarity of intersect curve in different offset distance and use ttp to label the topology of surface intersect. the algorithms succeed in combination of tracing method and topology information, and present an optimized offset ssi algorithm. the optimized algorithm pre - processes surfaces to achieve ttp, and decides calculation strategy of starting points by analyzing the properties of ttp on the surface

    本文通過對等距曲面交線結構進行了大量的分析，從交線的形成和演化過程，揭示了等距曲面的交線拓撲結構和曲面上特徵點之間存在著本質的聯系，提取等距曲面不同offset距離交線環的相關性，並使用特徵點來標識交線環的拓撲信息，成功地將拓撲信息和跟蹤法相結合，設計了一種等距曲面求交優化演算法。
  20. The curvature radius was derivated and the contact stress of the three - arc - sect isometric type surface was calculated through the elastic dynamics theory

    應用彈性力學理論，推導出接觸點的曲率半徑，對三弧段等距型面聯接進行接觸應力計算。
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