移動邊界方法 的英文怎麼說

中文拼音 [yídòngbiānjièfāngfǎ]
移動邊界方法 英文
moving boundary method
  • 移 : Ⅰ動詞1. （移動） move; remove; shift 2. （改變; 變動） change; alter Ⅱ名詞（姓氏） a surname
  • 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...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 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...
  • 移動 : 1 （改換原來的位置） shift; move 2 [力學] translation motion; removal; shifting; dislocation; dis...
  • 邊界 : boundary; frontier; border; borderline; edge range line; periphery
  • 方法 : method; means; way; technique; process; procedure; plan; device; recipe; fashion; tool; maneuver
  1. And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media

    以土力學模型為基礎，利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播，採用了顯式差分方法（中心差分法和newmark常平均加速度法結合）和透射邊界，通過比較利用幾種差分格式求解的加速度結果，發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用，分別編制了體波（ p波或sv波） 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。
  2. The main work includes : based on biot ' s dynamic consolidation equations, by the method of integral transform and matrix transfer, two - dimensional consolidation of layered saturated soils is studied. then, the general integral solutions of stress ( including pore pressure ) and displacement ( including fluid flow ) of any point were obtained under harmonic vibration loads according to staunch boundary condition. second, a program to verify the correctness of this dissertation is developed

    主要工作有：本文根據biot平面動力固結方程，運用積分變換和矩陣傳遞的方法，研究了成層飽和地基的二維biot固結問題，根據下邊界為不透水基巖的邊界條件，獲得了地基表面作用簡諧振動荷載時，任意點應力（包括孔壓） 、位移（包括流體流量）的一般積分形式解。
  3. Following, making development study from the three directions : the first one is how to reduce calculation when to use markowitz model. this text has improved the efficient frontier of markowitz model utilizing free risk assets, and reduced calculation about revenue rates " co - variance matrix utilizing single or multiple factors, and so on. the second one is to add thinking factors about, such as transaction fee, fund limitation, lowest transaction unit ' s limitation, risk measures and exchange rate risk of international portfolio securities, so as to make markowitz model closer to our country ' s practice

    接著，分三今方向對markowitz模型進行了拓展研究：第一個方向是運用markowitz模型時如何減少計算量，本文利用無風險資產來改進markowitz模型的有效邊界，利用單因子或多因子模型來減少收益率協方差的計算量等等；第二個方向是增加考慮因素，諸如交易費用、資金限制、最小交易單位限制，風險測度和國際組合證券的匯率風險，使markowitz模型更貼近我國的實際；第三個方向是對markowitz模型進行動態拓展研究，提出了將證券收益率看成是隨機序列時的投資決策模型，深入研究了m ? v有效邊界隨資產品種數增加而發生的漂移，並用解析方法和幾何圖形描述了漂移的軌跡和方向。
  4. For cases with relative large boundary displacement, a window is created enclosing the moving body in which the mesh elements are specified to be deforming adapted to the body motion

    處理動邊界位移較大的情況時，必須結合局部重構方法。網格變形區域被限制在包圍動邊界的一個窗口范圍內。
  5. Mesh movement strategy is implemented by the combination of mesh deforming and local remeshing, but just using mesh deforming is sufficient for cases with relative small boundary displacement

    動網格由網格變形與局部重構相結合的方法實現。對于動邊界位移較小的情況則單獨應用網格變形方法。
  6. In fegm, the shape function is constructed by the moving least square ( mls ) approximation, the weak form of the equivalent integral equation to the governing equation is employed and essential boundary conditions are imposed by the penalty function method

    它採用移動最小二乘法構造形函數，利用能量泛函的弱變分形式的積分方程，並用罰函數法施加本質邊界條件，從而得到積分方程的數值解。
  7. In efgm, in order to get a numerical solution for a partial differential equation, the shape function is constructed by moving least squares ( mls ), the control equation is derived from the weak form of variational equation and essential boundary conditions are imposed by penalty function method

    它採用移動最小二乘法構造形函數，從能量泛函的弱變分形式中得到控制方程，並用罰函數法施加本質邊界條件，從而得到偏微分方程的數值解。
  8. To completely avoid producing elements jointed at their corner nodes and checkerboard patterns, which frequently occur when the topology optimization of plane continuum is studied, the theory of topology analysis of plane continuum in topology optimization process and the simple algorithm for programming are studied. according to algebraic topology theory, the boundary of elements and plane continuum are operated as a one - dimensional complex. by use of the adjacency vector in graph theory, the structural topology is described and the topological operation is achieved on a computer. by above, the structural topological feature in the evolutionary process is gained. these methods are effcient and reliable. under topology constraints, according to the results of stress analysis, by deleting elements and moving nodes at the boundary, more satisfactory results can be gained by using a few numbers of elements and iterations. to demonstrate the efficiency of these methods, solutions including some well - known classical problems are presented

    避免目前平面連續體結構拓撲優化過程中經常出現的單元鉸接以及「棋盤格」等現象，研究了連續體結構拓撲優化過程的拓撲分析方法，以及在計算機上實現的簡便演算法.根據代數拓撲理論，單元及連續體的邊界作為1 -復形進行運算.利用圖論中的鄰接向量概念，在計算機上實現了結構的拓撲描述及拓撲運算，得到了結構在拓撲演化過程中的拓撲特性，方法簡單、可靠.在一定的拓撲約束下，根據應力分析結果，採用刪除單元、單元退化、移動節點等方法，可以用較少單元得到更為滿意的結果，提高計算效率.為演示方法的有效性，給出幾個包括常見經典問題的解答
  9. The main research is as follows : analyze and research the boundary constraint and the structure characteristic and segment the frame making use of the shell element, the pipe element etc. on the base of it the practical finite element model has been established ; analyze the mode of the frame by dint of the finite element model. and get the inherent frequency and the vibration mode of the frame. tentatively estimate the dynamic characteristic of the frame and analyze the inherent frequency that may be lead to the resonance

    論文的主要研究工作如下：分析研究車架的邊界條件和結構特性，並用殼、管等單元對該車架進行離散，建立一種切實有效的車架有限元模型；對該車架的有限元模型進行模態分析，求得其的固有頻率和振型，並對車架的動態特性做出初步評估，分析可能引起車架振動的固有頻率；在模態分析基礎上，研究發動機輸出的簡諧力引起的車架位移響應（即諧響應分析） ，以考察摩托車車架各部位的振動情況並與模態分析對比，分析是否與該車架的固有頻率相耦合而導致共振；在深入研究車架的模態分析及諧響應分析、清晰地認識了摩托車車架動態特性的基礎上，分析並提出了採用橡膠減震器對車架進行隔振的減震方法。
  10. Abstract : based on the analysis of the pressure equation of filling flow in injection molding, finite - element method is employed to solve the transient pressure field with moving free form boundary

    文摘:在分析注塑充填流動壓力方程的基礎上，採用有限元方法求解充填過程中非定常、具有移動邊界的壓力場。
  11. Moving boundary method

    移動邊界方法
  12. Firstly, i introducesome representative cac arithmetic in mobile communication networks and somecommoncac arithmetic in cdmasystems. these arithmetichavetheir own differentcharacters, and a practical cac needs consider all kinds of factors synthetically. so, inthe base of the above arithmetic, i put forward two improved arithmetic which are aimproved cac arithmetic bases on mbgc and a new cac arithmetic bases on gos, consideringsoft capacitycharacteristicofcdmasystems, intheend, iproposeakindof arithmetic based on different interference thresholds, which gives the differentinterference thresholds aimed at the different services

    接下來則重點討論了呼叫接納控制演算法，先介紹了移動通信網路中的一些較具代表性的呼叫接納控制演算法和cdma系統中的常用演算法，這些cac演算法各有不同的側重點，一個實用的cac需要綜合考慮各方面的因素，所以在上述演算法的基礎上，提出了改進演算法:基於mbgc （可移動邊界保護通道）的呼叫接納控制演算法和基於gos （服務等級）的呼叫接納控制演算法。
  13. In this paper, deconvolution and linearized inversion of receiver function are improved ; multi - channel deconvolution and wavelet inversion are developed for receiver function. the elastic wave motion equation is applied in the simulation and migration of receiver function in lateral inhomogeneous media, multi - grid algorithm is introduced in numerical modeling of elastic wave motion equation, and phase - delay boundary condition is also provided to absorb boundary reflection

    在此基礎上，重點研究和發展了橫向非均勻介質中，基於波動方程的數值模擬與偏移成像方法，首次將多重網格演算法引入到彈性波方程的數值模擬和接收函數的偏移成像，還發展了一種延遲邊界方法，以消除人為邊界反射的影響。
  14. In a word, the works of this paper is as follows : 1, about the stability analysis of bridge foundation, the variational kp method is researched. at the same time, an improved method that not only keeps the merits of the former method, but also improves the precision and extends the range is putted forward. at the basis of pointing out the phenomena of sloping surface moving when the loading, structural boundary or hydrology and geology conditions changes, the dynamic stability analysis to considering the moving of sloping surface is putted forwarded

    本文主要在以下幾個方面開展研究工作： 1 、在大型橋梁地基基礎的穩定性分析方面，對非線性有限元求解方法?變k _ p法進行了研究，在保持原有方法優點的同時，提出了一種改進方法，可以提高該方法的求解精度與適用范圍；在指出最不利滑動面會在荷載、結構邊界、水文地質條件等發生變化時發生遷移現象的基礎上，提出了基於最不利滑移面遷移的穩定性動態分析方法。
  15. Based on the analysis of previous work in detail, a scheme of a - posteriori error estimation is introduced into the local boundary integral equation method ( lbiem ), which is constructed with the difference between the raw solutions of lbiem and the post - processing solutions with taylor expansion and moving least square approximation ( mlsa )

    通過對無網格演算法在誤差估計方面的工作分析，根據原始解和后處理解的不同，將一種誤差佑計的方案引入到局部邊界積分方程方法中，其中后處理解採用泰勒展開和移動最小二乘近似得到。
  16. In this thesis, based on the previous investigation on 2d moving and rolling contact problem by bem, the conforming discretization is generalized to 3d cases, and a scheme of bem for moving contact of 3d elastic solids with prescribed moving direction using conforming discretization is presented

    本文基於作者研究組對二維彈性體移動和滾動接觸邊界元法的前期研究，將其中的協調離散方案推廣到三維問題，提出了針對移動方向已知的三維彈性體移動接觸問題的一種邊界元協調離散方案。
  17. Exact solutions are derived for the forced vibration of plate on elastic foundation to moving loads, which is based upon the use of the 2 - d fourier transforms to the motion equations and boundary conditions. following a series of deduction, a calculation programme by the methods of numeric integration in fortran is provided

    由系統的運動方程出發，利用界面連續條件，運用積分變換方法對原方程及邊界條件進行了二維fourier積分變換，把偏微分方程組變成常微分方程組，求出加鋪層板系統在移動荷載作用下的撓度解析解。
  18. To solve the moving contact problem, a kind of interpolation schemes, which utilizes shape function to impress interfacial constraint conditions ( node to point ) to prevent penetration between the contacted surfaces, is adopted generally in the references of bem, as used in the fem

    對于移動接觸問題，邊界元法的有關文獻中通常採用和有限元法中類似的插值方案，利用形函數來強加界面約束條件（節點到非節點）以避免接觸表面之間的貫入。
  19. Finally, multi - passage method was adopted to deal with the phase - difference periodic boundary condition. when the frequency of separated vortex propagating is not the same as the vibrating frequency of blade, this method is much more reasonable than those simple phase - shifted periodic condition in single passage

    最後，採用多葉柵通道計算來處理相差周期邊界條件，在分離渦傳播頻率與振動頻率不同時比其它採用簡單相移條件的方法更為合理。
分享友人
分享到 Line

分享到臉書