曲面變形 的英文怎麼說

中文拼音 [qūmiànbiànxíng]
曲面變形 英文
flatting
  • 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. For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field

    因此，對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此，本文從測井地質的角度，針對當前裂縫性儲層測井地質解釋與評價的現狀，在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上，利用分形分維方法和技術，通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ （ fa ）與m指數的理論推導，根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜，則其分維值d _ （ fa ）越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵，提出了改進的基於盒維數的測井曲線網格覆蓋法，編程計算了裂縫性儲層段常規測井曲線（如聲波和電阻率曲線）上分形分維值及其m指數值，進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究，效果十分理想： 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪，採用儲層分維值分類技術統計分析這些參數變化的規律，並結合qx油田l區塊儲層類型經驗判別圖版，從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。
  2. The gravity analysis is carried out especially for the synthetic fused silica and calcium fluoride used in 193nm lithographic objective as well as the optical elements with structural sizes of ( 200mm ~ ( 300mm. large numbers of analysis data for surface shape error are obtained by using algor finite element analysis software. then these data are plotted into curves and comparison analysis will be carried out, finally the measures and schemes for reducing gravity deformation are proposed

    因此，本論文重點對大口徑光學系統在高精度光學鏡頭裝校中，因重力變形進行了詳細的分析研究，特別針對193nm光刻物鏡系統所使用的材料sytheticfusedsilica和caleiumfluoride以及用到的結構尺寸200mm ~ 300mm光學零件進行了重力變形分析，使用algor有限元分析軟體獲得了大量的面形誤差分析數據，然後將這些數據繪成曲線進行對比分析，最後提出了減小重力變形的措施與方案，並進行了實驗，驗證了分析結果是正確的，減小重力變形的方法是有效的。
  3. 4th : the ladder coconut palm is the rectangular only then tubular design, four sides stress, anti - curved performance fine, is not easy to twist the distortion

    4梯梆為矩形方管式設計，四面受力，抗彎性能優良，不易扭曲變形。
  4. Based on the three new supposition and the tow new mechanical tools : moment vector and radius vector, the warping theory introduced the analytical method of the rotation of a cross section around a fixed axis, so as to make the space stability of the thin - walled member complanate and one - dimensioned

    翹曲理論以三條新的假定和新建立的彎矩矢量和轉角向徑兩大力學工具為基礎，提出了繞定軸轉動的分析方法，使薄壁構件的空間變形平面化、一維化。
  5. 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。
  6. In addition, java3d can only accomplish the regular geometry sculpting and ca n ' t accomplish the irregular geometry sculpting. to solve this flaw, a new way of sculpting the gyre - solid and changing - section - brace by approaching the solid with small slice is put forward. at the same time, rendering and third dimension disposing are settled in this paper

    另外，在系統開發過程中，針對java3d三維造型功能類中僅包含標準幾何形體的問題，這里用四邊形面片逼近曲面的方法解決了回轉體和變截面曲柄的三維建模，以及這種建模方式下的渲染和真實感處理問題。
  7. Crank of internal combustion engine after every process and hot surface treatment will produce fairly deformation, that is jumping overproof. so alignment without destroy for its tissue and property is important factor which ensure operation of crank safely

    內燃機曲軸在各加工工序及表面熱處理后會產生一定的變形即跳動超差，對其組織和性能無破壞的校直是保證曲軸安全運行的重要因素。
  8. The subject for different process technology and surface treatment of crank takes tracking checkout for its internal stress, analyses relation of jumping measurement, deformation measurement, recovery measurement and stress change, finds the reason and usual law of jumping overproof of crank. through cold pressure alignment, hot pressure alignment, support aged alignment and so on methods for 42crmo steel crank, the subject checks change of stress in the process of alignment and change of tissue and property after alignment for crank, and gives comprehensive evaluation for every alignment technology, then give safe and feasible technology parameter

    本課題主要是對不同加工工藝及不同表面處理過程的曲軸，對其內應力進行跟蹤檢測，分析各工藝過程中跳動量、變形量、恢復量與應力改變的關系，找出曲軸跳動量超差的原因和一般規律。通過對42crmo鋼曲軸進行「常溫壓力校直」 、 「熱壓力校直」 、 「支撐時效校直」等方法的校直，檢測校直過程中曲軸應力的變化及校直后組織和性能的改變，進而對各校直工藝進行綜合評價，給出安全可行的工藝參數。
  9. Aimed at two shortages during rough working procedures - cast blanks with large - scale free form surfaces are distorted significantly and cutting stocks are distributed very dispersely, a new hogging algorithm is proposed

    摘要提出了一種新的毛坯荒加工演算法，解決了在粗加工時大型復雜曲面毛坯變形嚴重、餘量分佈不均勻等問題。
  10. The effect on display characteristic made by thermal deformations of the shadow mask is comprehensively investigated. by using the electron beam distribution automatic measurement system with a micro - deflective coil, a concave spot in luminance distribution can be get. it changes its position when the shadow mask changes its form

    本文系統全面地分析了傳統蔭罩的各類熱變形對顯示屏特性的影響，利用本文研製的電子束亮度分佈自動測試系統，附加一個微偏轉磁場，使相鄰兩電子束打在同一顏色的熒光粉條，並形成一個亮度凹點，當蔭罩變形時，凹點位置作相應的位移，以此原理跟蹤測量凹點位移量，即可得到色純漂移動態變化曲線。
  11. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  12. The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell. then the predigested model, i. e., bended beam, used in qualitative analysis was proposed, and its deflection and stress formulas under the freely supported condition were set up. based on an off - axis aspherical primary mirror, the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r, position s of concentrated load p and geometry length l of arc was analyzed

    根據這一設想，本文建立了超薄鏡的數學模型?薄殼，並提出了強制力作用下超薄鏡的簡化模型?曲梁，推導了曲梁在簡支情況下受力變形的撓度公式，並結合一個實例，計算出曲梁變形后與所需非球面的面形殘差（ rms ）在子午方向與曲梁弧長l 、曲梁半徑r及集中力位置s的關系及滿足面形精度的r和s范圍，分析了弧矢方向的rms ，得出了同時滿足子午和弧矢方向面形要求的l 、 r和p 。
  13. Firstly, starting with restriction of occluding contour, based on the traditional volume intersect to realize the full expression of the restriction by using surface distortion technology, then one simple way was get for modeling of sculpture

    首先，從分析遮擋輪廓約束入手，在傳統體相交方法基礎上，通過曲面變形技術實現約束條件的充分表達，得到一種簡便的雕塑曲面重構方法。
  14. Chapter 2 presents a deformation - and - reconstruction - oriented virtual design model, which includes the representation of part attributes, surface character relationships. a milti - hierarchical pan model is used to describe the part character and geometry information

    第二章給出了面向曲面變形與重建的曲面零件層次網格模型，基於分層次的零件信息模型來表達網格面的特徵屬性及幾何屬性。
  15. In order to propose an efficient solution to approximating smooth or rough curves and surfaces. this thesis gives the fractal approximation models. we also give the satisfactory application of m odels in morphing

    為了統一逼近光滑曲線曲面與具有分形特徵的自然界復雜曲線曲面，本文研究了基於投影迭代函數系統模型的曲線曲面的統一分形逼近模型，並進一步給出了此模型在曲線曲面變形中的應用。
  16. Chapter 1 ( the introduction ) gives a review of the development situation in virtual deformation design and surface reconstruction research and application. in this background, the significance and contents of mesh modeling, mesh optimization and mesh surface reconstruction in virtual environment are proposed particularly

    曲面重建技術在cad工程與可視化領域有著廣泛的應用，本文基於pro e系統三維造型信息，提取三角剖分網格，面向曲面變形研究網格模型建模、網格模型優化及幾何重建技術。
  17. A new method that can be used to analyze the developability of a curved surfaces " mesh is proposed based on gaussian theory of mapping a curved surface onto a unit global surface. 3. a new method is proposed to homo - topologically map a triangular finite element mesh into a planar shape based on the assumption that the surface deformation is continuous and homogeneous

    3 、根據曲面變形連續均勻的特點，提出了一種基於單元等變形的三角形曲面網格拓撲等價映射演算法，將可展曲面與不可展曲面的網格採用統一的形式展開到平面上。
  18. Deformations of constant mean curvature one surface in h

    3中平均曲率為1的曲面的形變
  19. It is found that initial brace deflections have significant effect on the stiffness and strength requirement which are interdependent ; and there is a very unfavorable interaction between lateral braces and columns imperfections. the calculating simplified model of this paper is not same with that of the former references. although this model is correspondingly conform to actual thing, the formula of lateral braces will be applied to practice after it is proved by experimentation

    首先研究了完全理想情況下，得出了時柱計算長度減至一半所需的剛度；接著綜合考慮了柱子和撐桿的彎曲，利用有缺陷桿的軸壓切線模量概念和分枝屈曲理論，考慮屈曲前變形和內力的影響，同時用ansys有限元軟體進行分析，得出了同時考慮撐桿的剛度和強度的計算撐桿面積和撐桿設計內力的公式。
  20. Finite - element analysis of plainstrain bending process based on normal anisotropy

    基於厚向異性的平面變形彎曲過程的有限元分析
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