finite element grid 中文意思是什麼

finite element grid 解釋
有限元網格
  • finite : adj. 有限的；【語法】限定的；【數學】有窮的，有盡的。n. 〈the finite〉 有限（性）； 〈集合詞〉有限物。adv. -ly ,-ness n.
  • element : n 1 要素；成分；（構成）部分；分子。2 【化學】元素；【數學】元，素；【機械工程】單元；單體；【無...
  • grid : n 1 格子，格柵。2 （蓄電池的）鉛板。3 【無線電】柵級。4 鐵道網；【電學】電力網；〈英國〉（全國）...
  1. Perfect pre - processing and post - processing function is one of the main factors to evaluate the vitality and market value of the finite element analysis system surveying today development of finite element analysis technology, most of which concentrate on establishing fine user interface, also has some limitation on application, and especially, the research on the visualization of arbitrary cut - plane is always in ascendants to realize the visual processing on cut - plane needs reprocessing the results of finite element analysis which have get, so the algorithm is two parts : seeking the physical value of cut - plane and drawing 2d contours, the former, based on the theory of stress on " arbitrary inclined plane " in physical mechanics, use the method of linear interpolation method to get the coordination and physical value of intersection between cut - plane and element arris ; the latter, based on the tables on elements, nodes, stress and strain, summarize a rapid algorithm of generating 2d contours based on the grid. this thesis synthesizes there two parts and get a visual processing program under fortran

    縱觀有限元分析技術的發展，目前大多集中在建立良好的用戶界面上的研究仍存在許多應用上的局限性，其中對任意剖面上可視化的研究仍處于方興未艾的階段。要實現任意剖面上可視化處理，必須先將得到的有限元計算結果進行再處理，因此在演算法上分為兩部分：求任意剖面上物理量值的演算法及二維等值線演算法。前一部分以彈性力學中「任意斜截面的應力」為理論基礎，利用線性插值方法得到截面與單元棱邊的交點坐標及交點物理量值；在此基礎上；根據已得到的單元及節點序號表、應力應變物理量表，總結出一種基於有限元剖分網格的快速生成二維等值線的演算法。
  2. Regard - ing the surface runoff mechanism, liang and xie 1, 2 presented a new surface runoff parameterization which dynamically represents both the horton and dunne runoff generation mechanisms within within a model grid cell together with a consideration of the subgrid - scale het - erogeneity, which can be applied to not only humid regions but also droughty regions as well 3, 4. regard - ing the soil water movement, xie et al. 5 developed an unsaturated flow numerical model based on the finite element method, and xie et al. 6 presented another numerical model to compute soil moisture and water flow flux together by means of a mixed finite element method

    在地表徑流方面，文獻1 3發展了一種同時考慮蓄滿超滲產流機制及次網格非均勻性的新的徑流機制模型，並用其改進了陸面模式vic variable infiltration capacity中的徑流計算，該模型既適用於濕潤地區也適用於乾旱地區4 .在土壤水模型方面，文獻5採用有限元質量集中法發展了非飽和土壤水流的數值模型，文獻6則採用混合有限元法建立了非飽和土壤水分含量和通量計算的數值模型
  3. It adopts reynolds time - average n - s equation and k - ? turbulence model to calculate the inner 3 - d viscid turbulence flow of centrifugal pump. in the unstructured grid, the governing equations are discretized with finite volume method based on finite element method. then the pressure correction method is used to carry out numerical calculation

    而後採用基於雷諾時均n - s方程與標準-湍流模型來求解離心泵葉輪內三維粘性紊流，在非結構化網格中，採用基於有限元的有限體積法對方程進行離散，用壓力校正法進行數值求解。
  4. Furthermore, the isoline maps of mean wind pressure coefficients and rms wind pressure coefficients of the structure under various wind directions are plotted. in the matter of theoretical analysis, modeling with finite element method, using the local mean wind pressure coefficients and time history of fluctuating pressures determined in wind tunnel, the wind - induced dynamic responses for long - span grid roof structures are calculated in frequency domain and time domain separately

    在理論分析方面，建立合理的有限元模型，利用剛性模型風洞試驗獲得的各種不同情況下屋面各節點的平均風壓系數和脈動風壓時程，在頻域內和時域內進行了大跨網架屋蓋結構的風振響應分析。
  5. Generally, the skew bridge ' s calculation theories can be divided into three types : the category 1 is the plank theories method, such as the finite difference method, the finite element method and the finite strip method, etc ; the category 2 is the beam theories, such as the grid beam theories, the general grid theories, the rigid cross - beam method, the elastically - supported continuous beam method and the bar system analytical method, etc ; the category 3 is the practical method, such as the g - m revising method, the grid - beam simple method and ghali form coefficient method, etc

    目前關于斜梁橋的計算理論和方法概括起來，大致可以分為三類：第一類為板理論方法，如有限差分法、變分法、有限單元法、有限條法等；第二類為梁理論法，如格構梁理論、一般格構理論、剛性橫梁法、彈性支承連續法、桿件結構的分析方法；第三類為實用計演算法，荷載橫向分佈的計算方法如g ? m修正法、格構梁的簡易法、 ghali表格系數法等。
  6. The super entropy produce criterion is a good tool to judge the system ' s abrupt change from a lower grade to a higher one. in this paper the entropy of the urban resource - environment system was defined, and in an example of its application the super entropy produce criterion of the urban resource - environment system reflected the real developmental process of the whole system. furthermore, in this paper, a new model for the grid size optimization of the finite element method ( applied to the water quality modeling of the topographically complicated river ) was brought forward based on the maximum information entropy theory in condition that the length of gird was given

    超熵產生判據為我們提供了判斷系統從低級有序向高級有序突變過程的工具，本文提出了城市資源與環境系統熵的定義，在實例中的應用證明城市資源與環境系統的超熵產生判據較好地反映了整個系統的演化情況；另外，本文針對在城市復雜河道情況下，利用有限單元法求解河流水質模型時網格單元大小難確定的問題，引入網格信息熵的概念，提出了有限單元法求解河流水質模型的網格優化方法。
  7. Theoretical research on the type and mainframe tripled frequency converter : on the basis of building finite element models, dividing grid, application of load in the software of ansys, the dynamic and static performances are calculated, the value of the deformation, the first natural frequency and corresponding mode of the frequency converter are obtained, finally, the dynamic performances of the frequency converter are analyzed

    對型三倍頻組件和主機三倍頻組件的理論研究:採用通用ansys軟體對組件進行合理建模，劃分網格，施加載荷，在此基礎上對它們進行了靜態分析和動態分析，得到最大變形量、低階固有頻率和相應的振型，並對組件的動態性能進行了分析。
  8. Grid generating automatically method of finite element analysis for rotator structure

    旋轉體結構有限元網格自動劃分法
  9. Based on the modal analysis data of the displacement of the spatial grid structure getting by the structural finite element analysis software ansys, the modal analysis technology of the axial member straining rate is used to identify the damage of the spatial grid steel structure in different damaged conditions and is found to be able to accurately position the damaged places of the spatial grid member

    文中通過結構有限元分析軟體ansys得到網架結構位移模態分析數據，採用桿件軸向應變變化率的模態分析技術針對不同損傷狀況的鋼結構網架進行損傷識別，能夠較為準確地診斷出網架桿件的損傷位置。
  10. Physical grid, attained with monte - carlo simulation for grain growth, is more accurate and reasonable than the grid attained with finite element methods ( fem ). based on micromechanics and damage mechanics, proper crack propagation criterions are developed and crack propagation simulation can be finished in few seconds with common computers

    跨出了細觀力學結合有限元方法模擬裂紋擴展的現有模式，從微觀尺度上模擬晶體的生長形態，結合細觀力學、損傷力學建立裂紋擴展判據，實現了快速的裂紋擴展模擬。
  11. For nonstationary stokes problem, materials ' anisotropic character should be considered in a boundary layer or near the angular of the domain fj. at this time, the subdivision to region q is not of regularity or quasi - uniform and should be anisotropic grid, which can describle the facts exactly. crouzeix - raviart element and rotary q4 element are failed in anisotropic grid and many others either ca n ' t satisfy the anisotropic property or ca n ' t be used to the moving grid finite element method. it ' s proved that five nodals element presented by professor houde han can overcome this shortcoming

    常用crouzeix - raviart元和旋轉q _ 4元由於不能滿足各向異性插值特徵而失去效用。而其它許多單元或是不滿足各向異性插值特徵或是尚不能直接應用於stokes方程變網格有限元。經本文證明由韓厚德教授提出的五節點單元很好地解決了這一矛盾，這些結論以前是沒有人作過的。
  12. Principals of how to ensure geometry parameter of space grids finite element model are given and f90 program to calculate member force and chord section is developed according < < space grid design and construction code > > ( sgdc code ) so as to determine the real constant ansys needed. to create finite element model of psgs, program to create node, element number and restriction information is compiled also

    給出了確定網架有限元模型幾何參數應遵循的一般原則，並依據《網架結構設計與施工規程》中網架內力計算演算法編制了計算周邊簡支條件下正放四角錐網架內力和桿件截面f90程序，從而確定採用ansys進行網架計算所需的單元實常數。
  13. For this reason, the separate block modeling and grid refining technique are adopted to control the trend of curved surface and to generate equal spaced grids, thus the hard problem of finite element grids differentiation was solved

    為此，採用分塊建模和網格細化技術以控制其曲面走向，生成等距網格，解決了有限元網格劃分難題。
  14. Rectangular finite element method with moving grid for parabolic problem

    突聾預后相關因素的分析
  15. Moving grid finite element method along characteristics for semiconductor device of heat conduction

    熱傳導型半導體瞬態問題特徵變網格有限元法及其分析
  16. In this dissertation, the main contents axe the anisotropic nonconfonning finite element methods with moving grid for nonstationary stokes problem and the high accuracy analysis of nonconfonning finite element methods for poisson equations

    本文的主要內容是討論發展型stokes方程變網格各向異性非協調有限元分析和poisson方程非協調有限元的超逼近性質和整體超收斂性質。
  17. With the 300mw turbo - generator as an example, the effects of saturation on operational characteristics and the stator and rotor ' s practical dimensions and configuration on the saturated characteristics have been studied ; some work on the grid division strategy considering the practical dimensions and configuration and the precision of the nonlinear finite element equation also has been studied. then the program for calculating and analyzing turbo - generaors " steady characteristics has been compiled and devised

    本文在系統地研究了汽輪發電機運行特性（飽和特性、短路特性、零功率因數負載特性和u形曲線） 、非線性有限元方程計算精度、定轉子實際結構對飽和特性的影響及計及定轉子實際結構時的剖分策略等問題之後，進一步研究開發了適于不同型號汽輪發電機穩態分析的通用性有限元軟體。
  18. The last chapter comes to some conclusions about the finite element pre - procession techniques and the main research problems of this paper ( the pattern module ' s method and the geometry optimization of the grid quality ), points out the existing problems, and refers to the work direction in the future

    最後一章得出有關有限元前處理技術利本文主要研究的問題（模板法利網格質量的幾何優化）的一些結論，揭示了尚還存在的問題並指出了繼續努力的方向。
  19. Two - grid method for characteristics finite - element solution of 2d nonlinear convection - dominated diffusion problem

    二維非線性對流擴散方程特徵有限元的兩重網路演算法
  20. Local and parallel finite element algorithms based on two - grid discretization for steady navier - stokes equations

    方程的局部和并行有限元演算法
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