virtual deformation 中文意思是什麼
virtual deformation
解釋
假變形- virtual : adj. 1. 實際上的，實質上的，事實上的。2. 【物理學】虛像的。3. 【物理學】有效的；【計算機】（網上）虛擬的。4. 〈古語〉具有可產生某種效果之內在力的。
- deformation : 變形,走樣
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Then, the associated search optimal algorithm based on virtual avl tree is promoted to rapidly reconstruct the half - edge topological structure. 3. to rebuild the tooth surface from the littery measure data, the membrane deformation algorithm based on loop subdivision is given to fit density triangle meshes to subdivision surface
前者巧妙、高效地完成了去除冗餘點的工作，將stl數據的存儲尺寸壓縮為原來的18 % 25 % ;後者完成了數據的半邊拓撲重建，使得后續對于邊界邊搜索、 1環鄰域搜索顯示出較好的優勢，實現了三角網格模型的快速拓撲重建。 -
Many scientists and mechanists, such as euler, prager, green, ericksen, hill, truesdell, eringen, made great contribution in this field and developed a general theoretical system. however, there still remain a lot that should be further investigated. this thesis discusses the linear theory of field of elastic solids subjected to additional deformation, and the corresponding virtual work equations and the displacement - based variational principle
本文第一章述評了由euler開創的，經prager 、 green 、 ericksen 、 hill 、 truesdell和eringen等學者發展並成功應用的附加變形或運動的思想，作為后續各章的基礎。 -
Similarly, according to the deformation mechanism of ebsf and the virtual work theory, the influence of three different active beam links on the terminal carrying capacity, stiffness and ductibility of ebsf is deducted
同樣，根據偏心支撐框架的幾何變形機制，應用虛功原理，重點推導並分析比較了分別採用d型、 k型或者v型支撐時對結構的極限承載力、彈性剛度以及延性的不同影響。 -
The errors of mechanism which include errors of manufacturing components, assembling and controlling and the errors caused by temperature growth and elastic deformation of forced components affect directly the processing precision of virtual - axis machine tools
機構的誤差直接影響虛擬軸機床的加工精度，機構誤差包括構件製造誤差、裝配誤差、控制誤差和由溫度變化和彈性變形引起的誤差等。 -
Nowadays, 3d modeling and computer animation have got widely applications, such as entertainment industry, man - machine interaction, multimedia, communication etc. the third dimension head portrait has been applied to correlative areas, for examples, movie special effects, virtual conference call, internet increment business, mobile internet increment business and software operation interface etc. in the fields of geometric modeling and computer animation, the deformation technology is an important tool
今天，在娛樂產業、人機交互、多媒體、通訊等領域中三維建模和動畫獲得了越來越廣泛的應用。真實感的三維頭像可以應用於諸如電影特技、虛擬電話會議、網際網路增值業務和移動網際網路增值業務以及軟體操作界面等相關領域。在幾何造型和計算動畫領域中，變形技術已經成為一種越來越重要的工具。 -
The paper depicts the elasticity with euler form and associates the form with depiction of behavior of fluid. the method takes the velocity as basic variables and then derives the left - deformation tensor from the velocity in order to deal with the time - independent motion. at last in this chapter the equations of the finite flow - element are set up from the principle of the virtual work
首先建立流管元的概念，對彈性固體相關的部分採用euler描寫，並融入流體行為的描寫中；以速度為變量，反推左變形張量，用於處理流固物質的定常運動，給出了控制方程和相應的變分式；以此為基礎發展了一套相應的有限流管元演算法。 -
The corresponding control equation is given. the control equation and boundary condition about the addiontional small deformation ' s effect caused by initial stress using virtual principal theory in cylindrical reference frame. generalized stress and strain and equivalent constitutive equation are given
第四章提出了描寫柱形薄殼中初應力的數值特徵，將應力的三維分佈轉化為二維分佈，給出相應的支配方程；在柱坐標系中，利用虛功方程建立了初應力對附加小變形影響的控制方程和邊界條件；給出了廣義應力、廣義應變及等效本構關系。 -
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。 -
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。 -
With the theory and methods in this dissertation, chapter 5 introduces the reconstruction model in vdds - cad ( the virtual deformation design cad system ), coming up with some examples of surface reconstruction. finally, conclusions were drawn from this dissertation with recommendation for future research in chapter 6
第五章以摩托車曲面虛擬變形設計軟體的開發為背景，簡要介紹摩托車曲面虛擬變形設計軟體的概況，然後詳細討論變形曲面重建模塊的主要功能及實現方法，並給出和分析了系統的應用實例。 -
Virtual surgery simulation is a virtual reality system used to simulate all kinds of phenomenon of surgery. for surgical simulation to be a useful training and simulation tool it must he realistic with respect to tissue deformation, tool interactions, visua rendering, force feedback and real - time response
其研究內容包括對醫學數據的交互與可視化、虛擬人體器官在虛擬手術器械作用下的各種變化的模擬及對操作人員的各種感官反饋（如視覺反饋和力反饋等）的模擬等，是虛擬現實技術在醫學領域中的重要應用。 -
The stochastic equation of virtual work based on total lagrangian method is developed to analyze the influences of vicoelasticity, large deformation and randomness simultaneously. the nonlinear equilibrium equations of viscoelastic stochastic fem are derived. the full newton - raphson method is used to get the numerical solutions
建立了基於totallagrangian法的隨機虛功方程，能夠同時考慮粘彈性、大變形以及隨機性的影響，導出了非線性粘彈性隨機有限元平衡方程，分析了其具體迭代求解方法。 -
Abstract : a previously proposed approximate quasi - static theoretical method is employed herein to examine the deformation and perforation of a simply - supported circular plate struck by a flat - faced projectile at normal incidence. based on the principle of virtual work, static load - displacement relationships are first obtained and then used to predict the energy - absorbing capacity of the plate subjected to relatively low speed impact. it is shown that good agreement is obtained between the theoretical predictions and the available experimental data, provided that adiabatic shear plugging failure does not occur, but the influence of strain rate sensitivity is taken into account
文摘:採用準靜態近似理論方法分析簡支圓板在平頭彈丸正撞下的變形和穿透.首先基於虛功原理得到了靜態荷載位移關系，並將其用於預測低速沖擊下圓板的能量吸收能力.當考慮了材料的應變率敏感性，並且不發生絕熱剪切沖塞破壞的前提下，理論預測和實驗結果吻合良好 -
As an interdiscipline research tcpic, virtual surgery incorporates the researches about computer science, computer graphics, sensor technology, biomcchanics, modem medicine, image processing, computer vision, robot technology, scientific computing visualization, etc. using all of the above techniques we can implement the geometrical model, physical / compute model, collisior detection, real - time deformation ( cutting, tearing etc ), and realistic rendering of human soft tissue
虛擬手術模擬研究涉及計算機圖形學、計算機視覺、彈性力學、生物力學、機器人學、醫學等諸多領域，通過上述領域知識實現組織器官對象的幾何模型、物理/計算模型、碰撞檢測、對象實時變形（響應、破裂等） 、手術過程真實感繪制等功能。其中人體軟組織器官的物理/計算建模是實現虛擬手術模擬的關鍵技術之一。 -
In chapter two, the liner theory of elasticity solid ' s addiontional on initial - stress configuration is narrated, the initial stress is adopted as parameter described currently configuration, corresponding virtual principal and variation method are given, and the energy theory of balanceable stable critical condition is put forward according to the ideology of addiontional deformation on initial stress configuration
第二章從初應力位形上彈性固體附加變形的二次理論入手，引出了初應力位形上附加小變形的場論；採用初應力作為描寫當前位形的參數，提出相應的虛功方程和位移變分原理；從初應力位形上附加變形的思想，提出平衡穩定臨界條件的能量原理。 -
The dataset collected, called vch - m1 ( virtual chinese human male 1 ), were characterized in the slice interval of the same 0. 2mm, including 9232 anatomical serially sectioned slices ( up to 161. 56 gb ), and radiological data composed of 1720 ct images with scan thickness of 1mm and 780 mri images with that of 2mm. we succeeded in eliminating the deformation of the chest and the abdomin during embedding, using a technique of fixation under salty environment with low temperature, and also a technique of sequentially embedding with enough ice pieces
在對中國虛擬人女1號（ vch - f1 ） 0 . 2mm等間距斷面切削建模的基礎上，我們對數字建模工藝的一些步驟進行了改進，獲取了vch - m1的0 . 2mm等間距斷面數據集，包括冰凍切片圖像9232張，數據量為161 . 56gb ；影像數據包括全身斷層ct1720張，層厚1mm ； mri780張，掃描間距2mm 。
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