邊界單元法 的英文怎麼說

中文拼音 [biānjièdānyuánfǎ]
邊界單元法 英文
boundary element method
  • 邊 : 邊Ⅰ名詞1 （幾何圖形上夾成角的直線或圍成多邊形的線段） side; section 2 （邊緣） edge; margin; oute...
  • 界 : 名詞1 （相交的地方; 劃分的界限） boundary 2 （一定的范圍） scope; extent 3 （按職業、工作或性別等...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 邊界 : boundary; frontier; border; borderline; edge range line; periphery
  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. Charted with them, and guangzhou time units was preliminarily analyzed as well. secondly, the author introduced the way and the signification of temporal position analyse with examples. thirdly, taking on - the - spot survey method as a practical tool, the author obtained data of temporal distance between each time unit at the verge of different urban districts and the central time unit of the city

    論文以廣州市為實證研究的對象，對廣州的市區范圍進行了時間單元的劃分並繪制出了時間單元圖，同時對廣州的時間單元滿意率進行了簡單的分析；接著以實例介紹了時間區位分析的方法和意義；然後利用實際測量法，在不同時間段測得廣州市時間中心到城建連片區各邊界點的時間距離，繪制出時間廓線，得出廣州市城建連片區的時間形態現狀及時間形態的日變化規律。
  3. A boundary element - free method for linear elasticity

    彈性力學的一種邊界無單元法
  4. Boundary element - free method for calculation of electromagnetic field

    電磁場計算的邊界無單元法
  5. Consequently, on the basis of non - winkler foundation model, a finite - element method that utilizes foundation flexibility matrix into iterative calculation is proposed in this paper originated from the item " the optimal design theory and research of pile capping beam " sponsored by natural science fund of hunan province, which the continuity of soil mass can be accounted for under various boundary conditions, different loadings and irregular beam characters

    本文結合湖南省自然科學基金項目「樁基承臺梁優化設計理論與方法研究」 ，針對非文克爾地基（半空間、線性變形層或單向壓縮層地基模型等）上的樁基承臺梁，提出一種利用地基柔度矩陣來進行迭代的有限單元法，可充分考慮梁下土體的連續性，並對基礎與土體脫開、承臺梁截面變化、梁體邊界條件復雜、上部荷載類型變化以及梁下基樁承載力差異等情況進行分析計算。
  6. Some good characteristics of bem are lost as a significant cost ; the contact boundary conditions can not be satisfied on whole boundary, even in the sense of discretization

    付出的代價是喪失了邊界元法原有的一些優良特性，接觸邊界條件在離散意義下也不能再在整個邊界單元上精確滿足。
  7. Therefore it is started with the derivation of variational equation, full formulations including contact boundary conditions, internal forces of shell element are given, and the algorithms for contact - surfaces searching, contact - force computation, and even time integration for the response computation are listed as well

    為此，文中從推導變分方程開始，給出了包括接觸邊界條件、殼單元內力計算在內的全部列式，並列出了識別接觸界面的搜索演算法，接觸力計算以及動力響應計算的時間積分演算法的有關公式等等。
  8. Thirdly, employing the boundary element method, the original problem ( having imperfect interface ) will be solved on the basis of elastic fields with perfect interface

    然後，運用邊界單元法得出原問題基於完美界面基礎上的解答。
  9. Considering the interaction of overlapped shield tunneling, the boundary element method was applied to analyze the ground displacement distribution and interaction between two adjacent tunnels in three typical situations

    摘要考慮盾構隧道疊交施工之間的相互影響，應用邊界單元法對相鄰隧道開挖過程中的三種典型疊交位置關系，引起的地層位移場分佈規律及相互影響進行分析。
  10. This thesis initiates a study about the thermal - hydraulic research for the target structure and optimization. investigating the target research work at home and abroad, we acquire their design gist and technological developing route in the according fields. comparing the numerical - calculational methodology of multi - physical such as finite difference method, boundary element method, disperse element method and finite element method, finite element method is the predominant methodology, we have appliance of this method to calculate fluid field thermal field and stress field

    針對靶區的結構設計，開展熱工水力學研究工作;調研國內外靶區的研究現狀，了解靶區的設計依據、技術發展路線及發展趨勢；調研多物理場的數值模擬方法-有限差分法、邊界單元法、離散單元法、有限元方法等等，其中最有效地方法是有限元方法；簡述有限元方法在流場、溫度場、應力場計算中的具體應用。
  11. Firstly in this part, computer simulation methodology based on the baecher model for generating network of discrete fractures was presented, which includes the follow details : probability distributions of fracture density, orientation, trace length, size, and aperture and estimation of their statistical parameters ; stochastic models of fracture network ; monte - carlo ' s simulation method ; numerical simulation procedure and technicality. then, boundary element method was used to calculate flow through the generated fractured network. assuming single fracture as a two - dimension inexpressible isotropic porous media, boundary element method equations for flow in single fracture and then in fracture network were derived using the weighted residual method

    給出了離散裂隙網路模型所依據的基本假定；發展了基於baecher模型的離散裂隙網路計算機隨機生成技術：詳細地推導了單裂隙滲流和多裂隙相交網路滲流的邊界單元法公式，發展了離散裂隙網路中穩態滲流的邊界元數值技術，並且討論了相關的具體數值技術細節，如角點的處理方法，單元的自動剖分等：描述了混合邊界元?管流模擬方法及其數值實現；研究了裂隙網路的簡化方法，並針對裂隙網路邊界元法的特點提出了一種改進的分塊三角分解法。
  12. It shows that the accuracy of the virtual boundary element method is better than that of the boundary element method as the distance between virtual boundary and real boundary is optimum

    對強流電子槍的計算表明，在同等條件下，取定最佳的虛實邊界距離與邊界單元數，虛邊界元法較邊界元法的精度要高。
  13. We extend this method to the problem of a domain which boundary is an open arc or an open segment. in this paper, we simulate the singularity of solution in extreme point of open arc or open segment by singular element

    本文還把此方法推廣到求解區域邊界是直線段或者開弧段的情況，採用引入奇異邊界單元的方法來模擬解在開邊界端點附近的奇異性。
  14. The present thesis solves euler equations with quick parallel computing methods on grids. based on schwarz parallel algorithms, collectivity flow field numerical value solver can be gained via evaluating interface boundary cells by passing information

    本文的主要目的是并行快速求解歐拉方程數值解，是以schwarz并行演算法為理論依據，通過信息傳遞對內邊界單元賦值，以得到總體流場的數值解。
  15. The " wavefront " domain decomposition method developed above is used in the division of flow field domain. the quantity of physics variables on the " subjunctive " boundary elements needs mutual communication of subdomains during the simulation

    流場區域的劃分採用改進的「波陣面」區域分裂演算法， 「虛擬」邊界單元的物理量的計算由子區域之間相互通訊來完成，信息的發送方式採用「循環式」發送方式。
  16. Fem and bem is very adapted to predict the noise level in lower frequency, but they need to describe the geometry of structure detailedly which is wasting - time for many modes in system and high frequency, wide band and random variable

    有限單元方法和邊界單元方法可以較好地預示低頻環境噪聲，但需要較為詳細地描述結構的幾何特性。對于時間上是隨機的寬帶高頻分量，結構中存在大量模態的情況有時是費時的。
  17. The physical and mathematical models are founded. numerical simulation of marangoni convection in the liquid bridge and gas channel was performed by employing the primitive variable method and using galerkin finite element method, which is applied for discretization of non - dimensional governing equations and boundary conditions. the relationship between the suppressing status of mc in the liquid bridge and the inlet gas velocity or the channel width is obtained, and the suppressing status of some kinds of marangoni numbers ( ma ) or size ratios of liquid bridge a is analyzed

    採用原始變量法，用galerkin有限單元法對無量綱控制方程及邊界條件進行離散后，數值模擬了微重力條件下半浮區硅熔體及氣體流道內的marangoni對流，得出了無量綱氣流沖刷速度及流道寬度變化和熔體內熱毛細對流抑製程度的關系，進而分析了不同的無量綱參數ma數和不同熔體幾何尺寸比a下熱毛細對流抑制情況。
  18. Direct imposition of essential boundary and material discontinuity conditions in the meshless method

    在無單元法里直接準確施加位移邊界條件和材料不連續條件
  19. A series of examples illustrates the excellent performance of the techniques. in addition, two difficulties in efg, treating essential boundary conditions and approximations near nonconvex boundaries, are discussed

    另外，本文還討論了無單元法中的兩個難點：邊界條件的引入以及非凸邊界的處理，較好的解決了這兩個問題。
  20. There are three main approaches to predict the noise level : similitude structure method including the frequency - response method and proportion method, modal method including finite element method ( fem ) and boundary element method ( bem ), and statistical energy analysis ( sea ). the advantage of similitude structure method is to give the predicting data fast, but it has some error because of dealing with rough similitude parameter and mass load

    目前對噪聲預示主要有三個方法：一是相似結構外推法，包括頻率響應法和比例法等；二是傳統的模態方法，包括有限單元方法（ finiteelementmethod ， fem ） 、邊界單元方法（ boundaryelementmethod ， bem ）等；三是統計能量分析方法（ statisticalenergyanalysis ， sea ） 。
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