finite element 中文意思是什麼

finite element 解釋
有限單元法
  • 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...
  1. Error estimates of characteristic finite element method for nonlinear advection - diffusion equation

    非線性對流擴散方程特徵有限元法的誤差估計
  2. Finite element analysis of aerofoil fatigue failure

    飛機機翼疲勞斷裂過程的有限元分析
  3. Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports

    首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。
  4. The common hypotheses of the shell structure aren ' t alterative in the new finite element method, and it finishes the solution through the integral of the different laminas

    新單元的計算方法不改變殼體結構的一般假設條件，利用厚度方向分段積分來完成問題的求解，並對層合截錐殼進行計算。
  5. Also, this paper studies the amendable methods of dynamic numeration model, and bring forward that optimized method can revise finite element model, while validating the construed results of structural mode is almost equal to true values

    本文研究了各種動力計算模型的修正方法，針對有限元程序，提出了用優化的方法實現結構動力有限元模型的修改，通過算例驗證，結構模態分析結果更接近於實測值。
  6. For a class of quadratic finite element diseretization systems of an elliptic boundary problem with jump coefficients under the unstructured quadrilateral grids, we are concerned with two kinds of quadratic lagrangian finite element equations, by analyzing the relationship between the linear finite element and quadratic finite element basis functions, a hew amg method is designed

    摘要針對一類帶間斷系數的橢圓邊值問題，在非結構四邊形剖分下，討論了兩種二次拉格朗日有限元方程的代數多重網格法，通過利用雙線性元和二次元基函數之間的表示關系，給出了一種新的網格粗化演算法和構造提升運算元的代數途徑。
  7. The paper is based on an arcuated built - up system bridge - zhongshan no. one bridge to be built in guangzhou, adopts the large universal finite element programme ansys, takes spatial action among members into account, establishes a three - dimension finite element model, and discusses the following several aspects : firstly, when three - dimensional finite model of a complicated bridge is founded, a beam - lattice method is a kind of applied and effective spatial analysis method, which is used to analyze superstructures of a bridge

    本文以廣州市中山一橋為背景，採用大型通用有限元程序ansys ，考慮構件間的空間相互作用，建立了三維的有限元模型，重點對以下幾個方面進行深入探討：首先，在對復雜的橋梁結構進行三維的有限元模型建立時，梁格法是分析橋樑上部結構比較實用而且有效的空間分析方法。
  8. 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。
  9. With the help of the electronic computers, engineers employ it to figure out nearly all kinds of engineering problems ranging from astronavigation, construction, waterpower projects, ship - building and mechanical engineering etc. owing to the strong power of finite element method, one kind of software pack which based on the method is exploited and named algor feas to resolve problems on structure analysis for trusses and shells. this paper also employ algor feas software pack to analyze and compute the cableway towers, giving the accurate result on stress and displacement both in location and whole. finally, we also bring out some advice on structure improving

    在此分析過程中：首先將物理模型簡化為力學模型，主要是將塔架結構按空間桿單元簡化為空間桁架結構，目的是將力學模型變換為數學模型；這一過程主要是利用autocad2000建立塔架的計算模型；再者，利用algorfeas軟體包讀入autocad建立的塔架計算模型生成初始數據卡利用計算機進行編程進行風載計算，再將計算結論整合入algorfeas產生的初始數據卡中，生成計算數據卡；接著，利用algorfeas軟體包計算塔架在不同載荷情況下的應力圖，位移圖，並且求出在不同載荷條件下的最大位移和最大應力等；然後，對塔架的穩定性進行分析；最後；根據計算結果提出改進建議。
  10. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  11. Abstract : for analyzing the residual stress distributing state within the weld joint, and its effect on the performance of welding structure, when welding the ferrite pearlite steel with the austenite steel, this paper develops a finite element program to compute the interface stress of two or over two material. finally, this program is used to analyze the mechanical behavior of heterogenic joint

    文摘:為了分析鐵素體、珠光體類鋼與奧氏體類鋼焊接時，焊接接頭處焊接殘余應力的分佈狀態及其對焊接構件性能的影響，研製了可計算兩種或兩種以上材料界面應力的有限元程序，並用此程序分析了異質接頭的力學行為。
  12. The approximation of the parabolic integro - differential equations is studied with anisotropic biquadratic finite element

    摘要研究具有各向異性特徵的雙二次元對拋物積分微分方程進行了逼近。
  13. Its biquadratic finite element approximation is considered and under the appropriately graded meshes, quasi - optimal order error estimates in the - weighted h ^ 1 - norm, up to a logarithmic factor in the singular perturbation parameter, are proved

    然後，考慮此方程在分層網格剖分上的雙二次有限元逼近，在-加權h ^ 1 -模意義下得到了至多相差一個關于攝動參數對數因子的擬最優階收斂的誤差估計。
  14. The theory of ann is helpful in this study. the methods of finite element analysis and optimum design are blent in well. as applications of this new strategy, some examples are examined

    運用人工神經網路的理論，開發了應用於機械結構優化設計的并行結構優化設計方法，將有限元法這一有效的工程分析方法和優化設計技術進行有機的融合，並進行了設計工程實例的應用。
  15. Finite element analysis of mast section structure of thread - type borer

    旋挖鉆機常用鉆桅截結構的有限元分析
  16. By means of carrying out parameterization on finite element model of certain punching - welding bridge housing and through optimization analysis, this paper realized the light weighted optimization design of punching - welding bridge housing under the conditions of letting the bridge housing to satisfy the demands of perpendicular bending rigidity, the perpendicular bending strength and the perpendicular bending fatigue life

    摘要通過對某沖焊橋殼的有限元模型進行參數化，經過優化分析，使得橋殼在滿足垂直彎曲剛度、垂直彎曲強度和垂直彎曲疲勞壽命的條件下，實現了沖焊橋殼的輕量化設計。
  17. Cable - pulley element in finite element analysis of cableway erection system

    纜索吊裝系統有限元分析中的滑輪單元
  18. 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。
  19. Abstract : the factors to influence fatigue life of chain plate areconcluded by experimental methods. the factors to prolong life of chain plate are analyzed by theoretical methods. the maximum value of crushing hole in 16a roller chain plate is calculated by finite element method

    文摘:用試驗方法確定了擠孔對鏈板疲勞壽命的影響，從理論上分析了在最佳擠孔量下，鏈板疲勞壽命提高的因素，用有限元法計算了16a鏈板的最佳擠孔量，並與試驗結果進行了比較。
  20. The main contents are given in this paper as follows : firstly, the chaotic dynamic and the finite element method are introduced

    全文主要內容包括：一、混沌動力學與有限單元法的介紹。
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