mesh distortion 中文意思是什麼

mesh distortion 解釋
格網畸變
  • mesh : n 1 網眼；篩孔；〈pl 〉網，網狀物，網路；網絲；銅紗；〈pl 〉法網。2 【機械工程】（齒輪的）嚙合。v...
  • distortion : n. 1. 歪扭，扭曲。2. 【電學】（信號、波形等的）失真；【物理學】（透鏡成像產生的）畸變；【醫學】扭轉，變形。3. 竄改，歪曲，曲解。adj. -al
  1. For the reason of concerning with large mesh distortion, the research of this kind of methods mainly focuses on constructing of finite volume schemes in lagrangian coordination and remapping of physical quantities between mesh systems

    這類方法由於涉及到lagrange坐標系下計算網格的變形問題，目前的研究工作主要包括lagrange坐標系下有限體積格式的構造和針對計算網格變形的守恆重映問題。
  2. A new four - node axisymmetric element ach8 is derived based on the combined hybrid variational principle, which uses wilson ' s displacements and linear stress suffering from energy compatibility. the resulting element exhibits excellent results in displacements and stresses and is suitable for nearly incompressible materials without any locking phenomena, insensitive to mesh distortion

    本文首先基於組合雜交變分原理推導出4節點的軸對稱元ach8 ，其位移插值採用wilson非協調位移模式，應力在等參坐標系下採用關于wilson位移完全能量協調的不完全線性多項式。
  3. On the assumption of ignoring the distortion of thickness, this paper determines the rough shape by the geometric modeling method of equal area developing using mixed mesh cell of triangle and quadrangle for the first time, presents the equal area developing arithmetic of quadrangle - triangle. on the virtual geometric symmetry axis, we puts forward the method of determining the developed coordinate of the point on the base band in the development of using regular quadrangle cell, determines the developed shape of internal structure in plane utilizing point - to - point mapping theory. furthermore, we realize the approximate developing of undeveloped - irregular boundary surface using a few triangle cells

    本文結合型號研製中小曲率機翼整體壁板類零件坯料展開課題，基於板料厚向變形忽略不計的先驗假設，首創混合四邊形-三角形網格等面積展開的幾何模擬法確定壁板類零件毛坯外形，給出了混合四邊形-三角形網格等面積展開演算法；提出了虛擬分割線的概念，採用虛擬幾何對稱軸，給出了規整四邊形單元展開基帶上結點的計算方法；採用映射原理和求交演算法確定了壁板內部結構信息的展開定位。
  4. The proposed md mesh - based motion coding methodis then combined with the pairwise correlating transform, and acomplete md video coding scheme is proposed. further measures are takento reduce the mismatch between the encoder and decoder that occurs whenonly one description is received and the decoder reconstruction isdifferent from the encoder. the performance of the proposed scheme isevaluated using computer simulations, and the results show, compared toreibman s md transform coding mdtc method, the proposed schemeachieves better redundancy rate distortion performance

    數據重傳必然會引起延遲，因而在需要很短延遲的應用中是行不通的，如雙向無線通信同時在以廣播方式進行數據傳輸時也是行不通的當有大量突發錯誤時，糾錯碼如分組糾錯碼block code及卷積碼convolutional code無法在不產生額外延遲及需要額外運算的前提下對數據提供足夠的保護而錯誤掩蔽的性能則受接收到數據與丟失數據之間的殘留相關性大小的影響。
  5. The node force corresponding to damp was used to control the mesh distortion. numerical studies show that the method proposed by this paper can successfully control the severe distortion of mesh and retain the density of elements during the membrane form - finding when the damp viscosity coefficient is in a limited scale. especially this method can avoid the sparseness of mesh in the location of lower curvature and have good convergence characteristic

    同時針對找形分析中的動力鬆弛格式，本文提出了全新的控制網格變形的動力鬆弛法，此方法能夠有效地解決膜結構找形分析中網格的大變形問題，克服了在曲率較小處網格過于稀疏的缺陷，在曲率較小處保證了單元的密度和初始構形的精度，並且收斂性較好，為準確進行荷載分析和裁剪分析奠定了基礎。
  6. Ansys is used in calculating and analyzing the distortion of motor shaft and the stress of gear mesh

    使用有限元軟體ansys計算分析了3種結構的齒輪軸變形和齒輪嚙合時的應力。
  7. Unfortunately, most existing mesh generation algorithms are based on the cad model of tool surfaces and can not really realize full automatization of mesh generation because missing and distortion of geometric information often occur when preprocessing systems for mesh generation receive cad models from other cad system

    目前大多數基於cad模型的曲面網格生成演算法，由於cad模型在傳送過程中常產生幾何信息丟失和失真，需較多的人工干預進行模型修復，難以做到真正自動化。
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