infinite element method 中文意思是什麼

infinite element method 解釋
無限元法
  • infinite : adj （opp finite）1 無限的，無窮的，廣大無邊的。2 無數的，許許多多的。3 【語法】非限定的，不受人...
  • 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...
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Associated with a project of the planned xuefengshan tunnel with 7. 6 km long during the construction of shaoyang to huaihua expressway in hunan province of shanghai to ruili national trunk highway, this paper firstly makes an introduction of the frequently - used analysis & computation methods for tunnel supporting structure. then, based on the analysis of the basic theory about the interaction mechanism of surrounding rock and support structure, a spatial computation model is made, a coupling numerical computation method with 3 - d elastic - plastic finite element and infinite element is proposed, and a comprehensive analysis has been made to the effects of the overall stability and safety of the surrounding rocks of different characteristics, different classes and under different construction methods. and thus the problem of 3 - d infinite region to which applying the general finite ca n ' t do has been resolved

    6公里的雪峰山隧道工程，首先介紹了隧道支護結構的常用分析計算方法；然後通過對隧道施工過程中，洞室穩定性與支護結構相互作用機理的深入分析，建立了隧道施工過程的空間計算模型，提出了採用三維彈塑性有限元-無限元耦合的數值計算方法，綜合分析了隧道在不同圍巖特性和圍巖類別條件下，以及不同施工開挖方案等對隧道圍巖整體穩定和安全性的影響，從而解決了通用有限元方法難以解決的隧道三維無限域問題；其可充分發揮有限元法在分析非線性方面的有效性和成熟性，以及無限元法在分析處理無限域和半無限域方面的精確性和簡便性，為隧道施工過程中圍巖的穩定性分析開辟了一條新的途徑。
  2. Firstly, this paper describes the optimization problem of thermal stress of fabrication process and steady work process for the hollow cylinder and the infinite plate. then, thermal stress distribution is calculated making use of theoretical formulation and the results can be validated by finite element method. in optimization, the restriction condition is heat insulation performance and the objective function is danger coefficient

    本文首先對平板結構和圓筒結構梯度塗層在制備過程和穩定工作狀態下的熱應力優化設計問題進行描述，然後分別用解析法求解兩種結構的梯度塗層在制備過程和穩定工作狀態下的熱應力分佈，並採用有限元方法驗證了熱應力分佈的結果，在優化設計時，以危險系數為目標函數，以塗層的隔熱性能為約束條件進行設計。
  3. Firstly, the paper introduces the principle of instituting contact interface element and the format of integral method for element stiffness matrix ; secondly, because of the zero of displacement and load of soil in the infinite boundary, the unique shape of element stiffness matrix is obtained for coupling the three different elements

    文中首先闡述了接觸元建立的方法以及單元剛度矩陣的積分方法；由於無限遠處的土場位移、地震作用力皆為零，計算中對該單元剛度矩陣的形式不同於四節點等參元，文中推導了平行無限元的單元剛度拒陣方，並介紹了無限元單元剛度矩陣組裝原理。
  4. Infinite element method ; interface problem ; singularity

    無限元方法內邊界問題奇性
  5. 2. finite and infinite element coupling method applied in the paper can not only reflect the scattering phenomenon of waves, but also lessen the amount of calculation. it has significant advantage compared with pure finite element method

    L本文的有限元一無限元耦合分析方法，不僅可以較好地反映波在無限域介質中的能量彌散現象，同時大大減小了計算量，與單純的有限元法相比，具有顯著的優越性。
  6. There are two problems in simulating sh - wave issue by finite element method. the first is establishing artificial boundary problem, because of simulating the infinite field from the finite field in which intercept from the infinite field, so we introduce artificial boundary

    用有限元模擬波動問題，其首要問題是人工邊界的設置問題，由於要從無限域中截取有限區域來模擬無限域，所以要引入人工邊界。
  7. As for dam ' s dynamic properties in condition of elastic foundation, author uses mapping infinite element, which can reflect displacement ' s property of diminishing in semi - infinite materials. through exchanging data between three analytic software - matlab, ansys, fortran, dynamic properties of dam is computed in condition of elastic foundation. and then the dynamic displacement curve is obtained under the load of earthquake with the method of newmark - b

    對于彈性地基情況下壩體的動力特性，作者採用了能夠反映半無限域介質中位移衰減特性的映射無限元，通過matlab 、 ansys 、 fortran三種計算軟體之間數據交換得出了彈性地基下壩體的動力特性，並通過自編newmark -法程序計算了壩體在地震荷載作用下動位移響應。
  8. Using 3d 20 - node iso - parameter, 3d 12 - node infinite element and 3d 16 - node interface element, a coupled numerical approach for pile group - soil system under lateral loads is set up. a corresponding three - dimensional, nonlinear and elastic - plastic program ( epagpll ), include two materials and four nonlinear constitutive relations, is worked out by fortran 90 computer language. in the analysis the nonlinear e - model, k - g model and cambridge model with two yield surfaces are employed in the analysis of near - field soil, and the nonlinear analysis method is used in the piles - soil interface and distant - field soil

    本人用有限元進行樁體和近域土的分析，對遠域土體採用無限單元，在樁土之間採用接觸面單元，建立了平面8節點環狀單元6節點無限元6節點接觸面單元相耦合的數值計算模型；針對豎直受力樁的流變分析，本人用內嵌于autocad的vba語言編制了前處理程序，可以快速形成包括網格、節點編號、單元編號在內的數據文件，供計算程序使用；同時在前人關于流變問題研究的基礎上，引進土體非線性流變本構模型，利用有限元、無限元、接觸面單元相結合的方法，用c + +語言編制了相應的計算程序。
  9. Finite infinite element method for the acoustic radiating problem

    使用有限元和無限元耦合求解聲輻射問題
  10. Infinite element method

    無限元法
  11. The result of a case studying shows that the settlement calculated by large strain consolidation theory is large than that by infinite strain theory during the consolidation procession, but the final settlements calculated by both theories are same. more general assumptions than that in the classical consolidation theory is adopted and the exact analytical solution of nonlinear finite strain self - weight consolidation based on this assumption is obtained. by applying same experiment data, the comparison of the solutions of linear and nonlinear finite strain theory, as well as the numerical solution from finite element method is presented

    對此模型求得到了某些特殊條件下的lagrange級數解答，並通過尾礦沉降池實例分析，驗證了所得解答的合理性和有效性；建立了土體在堆積過程中的大應變固結模型，通過其對稱性構造出相似變量之後，由攝動法求得了近似解析解答，並通過試驗數據與傳統的線性化固結理論的解答相比較，顯示了傳統線性化固結理論在該問題上的局限性。
  12. For the purpose of determining the basic problems such as the computed field and the mesh sizes in the finite element method, the paper first deals with the problems of a semi - infinite soil domain with radiation damping and material damping through the transient response of a single pile, which are used in the finite element method

    本文首先利用單樁的瞬態響應來考察有限元計算中處理半無限土體的輻射阻尼和材料阻尼問題，以便確定有限元計算區域大小，網格尺寸等基本問題。
  13. Local buckling capacity of steel composite beam subjected to combined bending, shear and patch loading is one of key problem in steel structures design. the computational formula for local stability of web was based on the assumption of infinite - elastic perfect plates in the steel structures design code ( gbj17 - 88 ). but in the revised code ( gb50017 - 2003 ), this formula was made big change with reference to british code ( bs5950, partl ) and australian code ( as4100 ), the related research result of our country was included as well. in the modified formula, influence of early geometric imperfection and elastic - plastic buckling stage were considered, which is compatible with both actual circumstance of engineering and the strength formula of beams under bending stresses ( considering partial plasticity of the section ). in this paper, the preceding problem is deeply analyzed and studied, considering the effects of various geometric parameters and stress combinations on buckling critical stress of web, the revised local buckling correlative formula for transverse and longituded stiffened web panels under combined stresses is analyzed and verified by finite element method

    組合鋼梁腹板在彎、剪及局壓復合應力作用下的局部屈曲承載能力是鋼結構設計中需考慮的問題，新的《鋼結構設計規范》 （ gb50017 ? 2003 ）對此部分內容作了較大改動，原規范中關于腹板局部穩定的計算公式是基於無限彈性的完善板假定；新的規范則參考了英國規范（ bs5950 part1 ）及澳大利亞規范（ as4100 ）並結合我國相關研究成果，考慮了屈曲進入彈塑性階段以及初始幾何缺陷的影響。這不僅與工程實際情況相符，而且也與鋼梁在彎曲應力作用下允許截面部分進入塑性的計算公式相協調。
  14. Based on the finite layer method and finite element method, a numerical analysis model of pile - soil interaction is established for single pile. it is proposed to transform a half infinite space problem into a 2 - d quasi - plane problem

    對于單樁，本文以有限層地基模型和平面有限元法為基礎，建立了能夠反映水平荷載下樁土共同作用的彈性數值分析模型，把半無限空間問題轉化為準二維平面問題。
  15. For the interface problems with variable coefficients, it is introduced that a particular finite element method combined with the infinite element method to approach the singular solution in the neighborhood of the singular points, and it is proved that the method possesses the same accuracy as the finite element method to the regular solution

    對變系數內邊界問題，介紹了一種特殊的有限元方法。該方法結合了無限元方法，使在奇點附近的奇性解得到好的逼近。證明了該方法具有與有限元方法對正則解相同的精確度。
  16. In this pattern a new kind of infinite boundary element is developed to reduce wave reflection on the boundary. by this method, a simple and convenient numerical way is worked out and dissipation of the pore press, damping can be taken into account. it can not only solve the problem of material nonlinearity, but also be suitable for the problem of large deformation

    考慮到反射波在計算區域內經多次反射、透射和散射對計算結果可能產生較大的影響，在上述飽和砂土有限元模型的基礎上，建立了一種新的動力無限元計算模型，該模型能滿足工程計算的要求。
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