拓撲圓 的英文怎麼說

中文拼音 [tàpūyuán]
拓撲圓 英文
topological circle
  • 拓 : 拓動詞（把碑刻、銅器等的形狀和上面的文字、圖形印下來; 拓印） make rubbings from inscriptions pict...
  1. In chapter 6, the usage of floater ' s algorithm on a disk is discussed which is for geometric reconstruction of surface with four edges using double cubic b - spline surface, and the algorithm is generalized to a cylinder and a mobius

    第六章討論了floater關於四邊拓撲曲面的雙三次b樣條幾何重建方法在圓一摘要浙江大學博士學位論文一盤拓撲曲面上的應用，並將其推廣到平環與mbbius帶上。
  2. Aiming at the shortage of material information, tolerance information, technical information, and so on in the model, the author conducted a research on a step based and feature oriented method to integrate the information in the model. the models for several common features were created. they are hole feature, planar face feature, outer - round feature, planar pocket feature, revolved groove feature, circular pattern feature, and rectangular pattern feature

    針對現有數據模型在材料、公差以及工藝信息等方面的缺失，研究了在基於step的面向特徵的產品數據模型中集成這些信息的方法，建立了一些常見特徵，如孔類、平面、外圓、平面槽及旋轉槽、圓周陣列、矩形陣列等特徵的信息模型，並用express語言來表達，該模型不僅包含幾何拓撲信息，而且增加了公差、工藝路線、裝夾定位、加工方法、及材料等信息。
  3. Drawing the intersection line of two quadric by the method of ellipse arc projection and topological transformation

    橢圓投射和拓撲變換解兩曲面相貫線
  4. And reach the conclusion that the stiffness of joints, especially spheric hinge, is the key to improve the stiffness of parallel machine tool. 5

    並使用此方法比較了傳統堆疊式串聯機床和並聯機床的拓撲剛度特性，指出kd - 2000中球鉸和圓周運動副是導致機床剛度較差的主要原因。
  5. After direct manipulation of radius, constant or variable radius area in mesh model can be modified quickly and exactly. using this method, rounding shape of a part or die can be directly modified on shell meshes for finite element analysis. ( 3 ) data segmentation on shell meshes is studied

    對于已有的圓角過渡區域網格，根據圓角過渡特徵與基網格面的相切關系以及給定的新的圓角半徑，計算出輪廓線上各頂點對應的坐標，直接修改頂點的坐標值，保留網格模型原有的拓撲結構，使形成的新的網格與原有網格融為一體。
  6. The present paper shows that a class of continuous maps on circles which is extensiver than expand maps is topological stable. and its inverse limit systems are expansive

    摘要討論圓周上一類比擴張映射更廣泛的連續映射，證明這種映射是拓撲穩定的， ?且其逆極限系統是可擴的。
  7. Iges and step standard format and the sat format which is used in acis has been studied. according to the characters of different parts and the characters of different machine tools, a method of grinding for non - circular surface is researched, a new strategy and algorithm of non - circluar surface nc griding which based on acis is studied. a way of non - circluar surface internal grinding is realized as well as the way of non - circluar surface external grinding

    論文的研究包括了以下幾個方面:研究了三維幾何造型引擎acis平臺及其拓撲結構，探討了iges和step等產品數據交換標準格式和acis中的sat文件格式的異同;根據零件的加工特徵和機床的結構特點，研究了在內圓磨削和外圓磨削方式下，非圓曲面磨削的數控編程技術;提出了基於acis實體造型的任意非圓曲面零件的數控磨削新演算法;實現了以實體造型為基礎的任意非圓曲面零件的內圓和外圓數控磨削;根據零件的特徵和磨削方式，生成了相應的走刀路線;實現了針對不同機床的後置處理。
  8. After the topological structure of machine system and the method of conversion of coordinate are introduced, 3d model of the manipulator had been set up in pro / e. in the process, several problems had been solved, such as simplification of part model, assembly, idealization of rub disc movement decomposition organization

    在介紹了軟體中機械繫統的拓撲結構和坐標變換的方法后，在pro e中建立了機械手的3d模型；解決了模型建立過程中的零件模型的簡化、零件的裝配、摩擦圓盤機構的理想化、模型中電動機的轉動方向等問題。
  9. ( 3 ) atr is studied in this paper both invariant moments to round degree. and, against the helicopter the result of test is given. the idea of topological is introduced in the fried of atr, the hitting - point choice on the basis of characteristic points is studied and aiming at the tanker a applied algorithm is proposed.

    （ 3 ）在模式識別理論的基礎上，探討了圖像識別系統，研究了不變量（不變矩、圓度）在目標識別中的應用，並針對圓度法用於直升機識別給出了應用實例，提出拓撲思想在識別中應用的方案，並針對坦克提出了一種命中點選擇方案和演算法。
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