曲面展開 的英文怎麼說

中文拼音 [qūmiànzhǎnkāi]
曲面展開 英文
curved surface development
  • 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...
  1. Therefore, the method of screen spreading is presented herein with the following basic feature : taking the surface of the perpendicular line at the end of the distortion and bottom as the datum plane, move the controlling point of every distortion part to the datum plane with the principle of changeless of geometry size, and then the spreading is formed

    為此提出一種屏幕展開方法，此方法的基本要點是，以扭曲面末端垂直線和底部起坡線所在的平面為基準面，將扭曲面各分塊的控制點按幾何尺寸不變的原則搬到基準面，即可形成展開圖。
  2. This paper deals with the optimal development of curved surfaces in 3 - dimesion euclidean space

    本文以三維歐幾里得空間曲面為對象，對其展開與優化問題進行了研究。
  3. The beeline distortion face often needs to be spread into an ichnography during drawing the reinforcement drawings for the inlet and outlet of the hydraulic structure, so as to show the length of the reinforcing steel bar directly

    摘要在繪制直線扭曲面鋼筋圖時常常需要將其展開為平面圖形，以直觀地顯示鋼筋的長度。
  4. In the thesis. reading the iges file - 3 - and all the geometry entities and annotation entities are extracted ; on the base of geometry entities extracted, geometry entities are classified based to their three views. a new data structure is proposed to describle 3d form features ; inspection items of the workpiece are recognized ; the cmm - based inspection planning system is built ; on the other hand, as a part of cims, cmm need exchanging data with the software of cad / cam, so iges export interface is developed based on iges standard. in order to show the whole information of the surface, the 3 - dimensional free - form surface is drawing using the opengl

    通過讀取iges文件對實體進行分離、提取、識別出對工件進行描述的原始信息；在此基礎上，西安理工大學碩士學位論文提出一種優化演算法對三視圖自動進行分離，建立了一種對工件進行三維描述的數學模型，照此模型對工件進行立體重構；識別出工件的各種檢測信息，提出一種對公差信息進行描述的數學模型，井與三維立體相結合，生成有檢測意義的三維實體；根據三坐標機的測量系統，生成相應的檢測規劃；另一方面，作為cmis的一部分，應具有與cad cam軟體之間的數據交換功能，本文還開發了iges輸出介面，採用opengl繪制三維空間曲面，向用戶展示其全面信息。
  5. With this method, developable surfaces and non - developable surfaces can be developed in a unique way. the developable surfaces can be developed submitted to certain error, and the non - developable surfaces developed homo - topologically

    對于可展曲面，利用該演算法可以得到在一定誤差范圍內的展開結果；對于不可展曲面，則可得到與原曲面拓撲等價的展開網格。
  6. Finally, when a 00, the limt situations for the developable modeling and surface development above are all disscussed and compared with those on bezier curve. the programs of the above methods und algorithms are developed, which shall be used in the system of developable surface modeling for cad / cam

    Zier曲線上可展曲面造型方法和曲面展開演算法，均給出了當0時的極限，並與b ? zier曲線的情形作了分析和比較。這些方法和演算法均應用於實例在計算機上得以實現。
  7. Based on the scrutiny of the application of virtual reality technology and the analysis of the current status of vr application in automobile design, a car body modeling system is proposed in this thesis. this system utilizes ug ' s powerful surface modeling, solid modeling, further development and highly interactive tools, nicer virtual environment to realize car body modeling and virtual assemble

    本文在討論了虛擬現實技術的發展及國內外研究現狀，並深入分析了虛擬現實技術在汽車設計中應用的基礎上，提出了一個基於ug平臺上的車身虛擬造型系統，該系統藉助于ug軟體強大的曲面、實體造型功能以及二次開發功能，良好的輸入輸出界面、交互工具，很好的虛擬環境效果來實現車身的三維虛擬概念造型、虛擬裝配。
  8. On the whole we can divide the evolution of party " s intellectual policy to three stages. in the first stage, the party put forward the policy of " solidarity, education -. renovation " for pre ? evolution intellectual and positively practiced the police from the aspect of operations arranging, political terms of employment, thought reform. . etc. along with the changing of intellectual troops " condition and completely launch of the socialist construction, the party proposed a guideline of " double 100 " and made a important modulation to the intellectual policy, which inaugurated a new situation for our intellectual performance ; in the second stage, the party ' s intellectual policy come through a zigzag process

    在第一階段，黨對舊社會過來的知識分子提出了「團結、教育、改造」的政策，並從工作安排、政治待遇、思想改造等方面積極落實這一政策，隨著知識分子隊伍狀況的改變和社會主義建設事業的全面展開，黨提出了「雙百」方針，並對知識分子政策進行了重大調整，為我國知識分子工作開創了一個新的局面；第二階段，黨的知識分子政策經歷了一個「一落一起再落」的曲折過程。
  9. Madame ding ling described the emotion world of the human beings based on her own rich experience of her complicated marriage and love with a strong conscious of misery and the sense of responsibility

    摘要丁玲以自身豐富曲折的婚變體驗，帶著強烈的優患意識和使命感，對人的情感世界展開了全面描寫。
  10. In the paper, based on the method of low pair replacing with high pair, the problem of cam design was transferred to that of linkage design. by means of rotary unit vectors, the equations of displacement, velocity and acceleration of the replacement mechanisms were developed. and then, the virtual linkage ' s length and direction were deduced

    論文基於高副低代原理，將平面凸輪機構設計與再現函數的平面連桿機構設計統一為同一種方法，運用圓向量函數建立代換機構的位移、速度、加速度矢量方程式，求取虛擬連桿桿長和方向，由此展開凸輪理論廓線、實際廓線、曲率半徑和壓力角的求解，並得出用圓形刀具加工凸輪時刀具中心的軌跡方程。
  11. Modified surface spreading four - node element in one - step inverse forming simulation and its application in automobile front fender

    局部減縮積分曲面展開單元在某汽車翼子板一步成形模擬中的應用
  12. 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
  13. New exploration of outspreading in irregular surfaces

    扭變曲面展開的新探
  14. Creating technology of carving work based of fractal and surface expandedness

    基於分形和曲面展開的雕刻作品生成技術
  15. The major works of this paper include the following aspects : 1. a review of the researches on curved surfaces development is presented. the development methods are classified based on the strategies adopted

    本文的工作可概括為以下幾個方面： 1 、總結分析了近十余年來有關曲面展開技術研究的文獻，並對各種技術方法進行了分類。
  16. This paper profoundly studies surface developablity on new a set of curves in the field of cagd and pays attention to the methods of developabe surface modeling and surface development on c - b zier curve. the research achievements and main contents are as follows : 1

    完成的主要研究內容和結果如下：一、回顧了可展曲面的概念和性質，系統敘述了cagd中可展曲面造型和復雜曲面展開方法的發展和理論及應用研究成果。
  17. 4. the deformation distributed in the developed surface is analyzed, and a lagrange deformation displacement is proposed to describe the deformation of an element

    4 、分析了曲面展開單元中的變形情況，提出了表示單元變形的lagrange位移法。
  18. This paper deals with the role and the prerequisite of establishing the computer - aided drawing system by means of unfolding sheet metal in modern production

    本文闡述了建立曲面展開計算機輔助繪圖系統在現代生產中的作用與必要性。
  19. This thesis, from different analytical points of view, proposes three algorithms for the minimum distances between convex nurbs surfaces and general nurbs surfaces respectively

    本文從不同的分析角度，分別就凸曲面和一般曲面展開研究，給出了nurbs曲面間距離求解的幾種演算法，解決了最為復雜的兩參數曲面間的最短距離求解問題。
  20. The sheet metal work pieces are first divided into several groups such as cylinder, cone and so on. then, under considering the intersection of two cylinders or a cone and a plane, the mathematical models have been developed, and the corresponding unfolding methods have been determined. on the platform of autocad, the system has been redeveloped by means of autolisp and activex object, and the unfolding cad system has been designed, which can realize the parametric drawing of the extension of sheet metal

    結合工程實際對曲面構件進行了分類，並通過分析建立了包括圓柱、圓錐、圓柱與圓柱相貫、圓錐與平面相貫等曲面構件的數學模型，確定了適當的展開方法，以autocad2000為平臺，以autolisp結合activex對象為工具，進行二次開發，設計了曲面展開cad系統，從而實現鈑金件展開圖的參數化繪圖。
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