邊界元法 的英文怎麼說
中文拼音 [biānjièyuánfǎ]
邊界元法
英文
bem-
Boundary element method analysis of discontinuities in a dielectric - filled rectangular waveguide with air posts
矩形波導填充帶有空氣柱介質不連續性的邊界元法分析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。Hybrid fem - bem for simulation of electromagnetic response
邊界元法計算電磁響應Design methods of prestressed concrete penstock
二維邊界元法中幾乎奇異積分的解析法Reliability analysis of connecting rod with stochastic boundary element method
基於隨機邊界元法的連桿可靠性分析Boundary element method on characteristic impedance of tem transmission cell
用邊界元法分析橫電磁波傳輸室的特性阻抗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。Application of natural boundary element method to the bending problem of the elastic thin circular plate
自然邊界元法在彈性圓形薄板彎曲問題中的應用Treatment of high - order singular integration while calculating fluid - solid coupling with bem
用邊界元法計算流固耦合問題時高次奇異積分的處理方法Treating the soil as a two - phase mixture and considering the interactive influence of seepage and solid deformation, this paper analyzes the dynamic impedance of group piles in layered saturated porous media by indirect boundary element method and investigates the effects of pore fluid in saturated soils on dynamic impedance of piles
摘要將飽水軟土地基視為兩相介質，考慮水的滲流和土骨架變形的耦合作用，用間接邊界元法分析層狀飽水軟土地基中橫向受荷群樁動力阻抗，探討飽和土中孔隙流體對飽和土中橫向受荷群樁動力阻抗的影響。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。Based on the difference between the corresponding limit of displacement from both side of contacted bodies, a local direct error estimator of bem solution for 3d elastic contact problem is presented, and then a scheme of adaptive bem is suggested
在此基礎上提出將接觸體接觸單元間與域內解連續的邊界位移之差的某種度量作為三維彈性體接觸問題邊界元法的一種誤差直接估計，並且提出了三維彈性體接觸問題邊界元法的一種自適應計算方案。In this dissertation, some basic investigations on the bem of 3d elastic contact problem have been carried out, which can be listed as follows : at first, an early investigation of authors " group, on direct error estimation of bem solution for elasticity problem, is extended from 2d problem to 3d elastic contact problem. an accurate and efficient algorithm for the determination of boundary displacement, which is continuous with the displacement solution within the domain of an elastic body, is then presented
本文對三維彈性體接觸問題的邊界元法做了若干應用基礎性研究，其中主要包括以下幾個部分：作者首先將本研究組提出的彈性力學問題邊界元解誤差的直接估計從二維推廣到三維問題，給出了確定與域內解連續的邊界位移的一種精確有效的方法。For the boundary nonlinear problems, such as elastic contact problem, the boundary displacements and boundary tractions are just the basic variables of the boundary integral equation, and the contact conditions can be satisfied with higher accuracy in bem ; therefore, the bem can be applied to solve the elastic contact problem more accurately
對于彈性接觸問題等邊界非線性問題而言，由於邊界位移和邊界面力正是邊界積分方程中的基本未知量，邊界元法能以更高精度滿足接觸條件，因此，邊界元法能更精確地求解彈性接觸問題。The paper puts forward an iterative process to searching for the contacted zone and the distribution of contact force, in the case of the outer loading has been known. the regularization algorithm is used to evaluate the mechanical parameters of the near - boundary points in contact bodies
列出了運用邊界元法解決靜態接觸問題的基本算式，設計了根據已知外部載荷來搜索接觸長度和接觸壓力分佈的迭代搜索方法，運用幾乎奇異積分的正則化演算法，求解了接觸體內近邊界點的力學參量。In the part of mechanics, to compound the staffs system, the beam method is used in the paper, then, analysis their mechanics instance. several kind of methods of compound are discussed, and machines of parallel manipulator are described in mathematics by chart
在受力分析部分，本論文利用邊界元法合成桿件系統，進而對其進行受力分析，討論了幾種合成方式，並用圖的方法對並聯機構進行了數學上的描述。When analyses the static force, this paper uses the boundary element method and the combined theory of mechanic system to compound the staffs system, and regards the component as elastic body, thus the static model of the hybrid mechanism is built, then, analysis their mechanic instance and distortion
在受力分析時，本文利用邊界元法和機械繫統合成的結合部理論合成桿件系統，並將構件作為柔性體，對搬運機器人混聯機構進行靜力學建模，並對其進行受力及變形分析。Eight - nodded curvilinear quadrilateral isoparametric shell element is used both in the fem and in the bem
在有限元方法和邊界元法中均採用了八結點曲面四邊形等參單元。Singular integral equations and boundary element method of cracks in thermally stressed planar solids
熱載荷作用下平面裂紋問題的奇異積分方程與邊界元法Based on some discussions on the mathematic model set up for the cathodic protection potential field, a two - dimensional boundary element method ( bem ) is developed, and by using which, a study on the shielding effect resulted from some typical inner structures such as the reinforcing elements and the partition walls with man holes on distribution of potential and current density in the cathodic protection is performed. the investigated parameters which affect the shielding effect in the calculating model include : the height and thickness of the reinforcing elements, the distance between the anode and the reinforcing elements, and the diameter of man hole on the partition walls, and so on
本文在討論了陰極保護電位場問題的數學模型的基礎上，以二維邊界元法對陰極保護問題中的電位及電流密度分佈進行了模擬計算，重點對船舶壓載艙中的典型結構如加強筋、人孔等在陰極保護中所產生的屏蔽效應進行了分析和研究，通過對不同高度、厚度的擋板及不同孔徑的帶孔板所產生的屏蔽效應進行模擬計算，首次得到了一些對實際工程設計具有重要參考意義的見解。分享友人