contact boundary 中文意思是什麼
contact boundary
解釋
接觸邊界-
The result shows that a sequence boundary is identified inside member 2 of sangonghe formation of lower jurassic, which is characterized by lithology of scour surface and conglomerate and gravel bearing gritstone over it, and by well logs of abrupt contact
通過巖心、錄井、測井、地震的綜合研究發現，在下侏羅統三工河組二段內部可以識別出一個三級層序界面。 -
In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design
第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。 -
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。 -
The programme can solve two - dimensional stresses, strains and axial symmetry problems with different yield criteria. a satisfying solution has been put forward to the contact boundary between reinforcements and soil. the special problem of two contact plane elements at the joint between plate and strip has been solved
該程序能同時考慮平面應力、平面應變和軸對稱問題，並能運用不同的屈服準則，使其更具有通用性和適用性，成功地解決了筋材與土介質界面的接觸問題，較好地解決了墻面板與筋帶連接處出現兩個接觸面單元的特殊問題。 -
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。 -
Rolling bearings - angular contact ball bearings - boundary dimensions
滾動軸承角接觸球軸承外形尺寸 -
Rolling bearings - double row angular contact ball bearings - boundary dimensions
滾動軸承雙列角接觸球軸承外形尺寸 -
Fourthly, the solutions for non - axisymmetical dynamic responding of elastic circular plate ( thin and thick plate ) rested on transversely isotropic saturated half - space / layered ground subjected to arbitrary harmonic loading are presented. under the contact conditions, the problem leads to a pair of dual integral equations which describs the mixed boundary - value problem
首先建立直角坐標系下波動問題的狀態方程，經雙重fo吐er變換求解狀態方程后得到傳遞矩陣:利用遞矩陣給出直角坐標系下層狀橫觀各向同性飽和地基在任意分佈簡諧荷載作用下穩態動力響應的一般解。 -
Equations of mesh, shorting contact line, undercutting limit line, meshing limit lines and the existence conditions, angle between the direction of relative speed and the direction of contact line, induced normal curvature about every point on the contact line are established. moreover, the paper also theoretically analyzed the error of the grinded gear surface. on the basis of the theory, the computer program is worked out to automatically produce the contact line and the boundary curves of mesh. analysis of meshing circs under different parameters can be done so that we can gain the best process condition
首先對漸開面二次包絡理論進行了深入的探討，推導出了兩次嚙合的嚙合方程式、瞬時接觸線方程式、根切界限線方程式、嚙合界限線的方程式及其存在條件，相對運動速度方向與接觸線方向的夾角及接觸線上各點的誘導法曲率；此外，還對磨齒后工件的齒面誤差進行了理論分析；並在理論基礎上編制了相應的計算機程序，自動生成接觸線族及嚙合界限線，對不同參數條件下的嚙合情況進行分析，可以使工藝條件達到最佳狀態；最後研究了磨齒裝置，設計了磨齒機的傳動系統。 -
Firstly, the hertz contact theory is used to design the export moment of the prototype ; deformation status of the flexspine under the elliptical cam wave generator action is analyzed using the column shell theory, whose boundary condition is four force action. design proposal of the wave producer put forward considering the precision theory of rolling friction transmission
首先用赫茲接觸理論對樣機的輸出力矩進行了設計;應用四力作用下的光滑圓柱殼體理論分析了在橢圓凸輪波發生器作用下柔輪的變形狀況，結合滾動摩擦副傳動精度理論提出了波發生器總體設計方案。 -
Rolling bearings - three - point and four - point contact ball bearings - boundary dimensions
滾動軸承三點和四點接觸球軸承外形尺寸 -
Research on surface and grain boundary passivation mechanism obtained effects of surface recombination on crystalline silicon solar cell performance and the theoretical expression of grain boundary recombination velocity. the limit ratio of short - circuit current increment for anti - reflection coating utilization on solar cells was obtained. the crystalline silicon solar cell spectral response, contact resistance and minority carrier lifetime measurement systems were established
鈍化機理研究獲得了表面復合對不同表面摻雜濃度晶體硅太陽電池性能的影響、表面和界面復合速度的理論表達式；研究得到了減反射膜對太陽電池短路電流增量比的極限；建立了太陽電池光譜響應、柵線電極接觸電阻和少子壽命等測試系統。 -
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。 -
The boundary integral equation for elasticity is derived through the general green ’ s formula and the corresponding fundamental solution. the paper represents the contact conditions, which are essential for the coupling of the boundary integral equations of the two different elastic contact bodies, in a local coordinate system properly chosen
利用廣義格林公式和基本解得出彈性問題的邊界積分方程，採用循環迭代的方法，通過尋求與接觸條件相協調的接觸邊界位移及面力增量來確定接觸區域的大小。 -
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 gap element method is proposed in the paper for two kinds of problems, which include contact problem and gap joint problem. elasticity contact problem falls into the category of unknown boundary value problems. it follows that the contact area and contact conditions or states ( st
文中給出了間隙元法在空間可動部件接觸問題中的應用，推導了其幾何邊界條件和力學邊界條件，利用虛功原理推導了含間隙元彈性接觸問題的有限元方程式，給出了其數值解法的迭代步驟，並指出了利用間隙單元進行分析的特點。 -
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。 -
Angular contact ball bearings for ball screws - series - boundary dimensions - classification, tolerance
滾珠絲杠用角面接觸球軸承.系列.外形尺寸.分類和公差 -
The whole dynamic finite - element analysis simplified based on 2d plane is performed to adapt engineering requires. the effect of both kinematic interaction and inertial interaction on pile - soil - structure systems within layered soil field is relatively comprehensively investigated. at the same time, the boundary effect of model, the horizontal dynamic features of piles and the nonlinear characteristic of slide and contact on the interfaces of pile - soil are considered too on the ground of no - element meshing technique applied for dimensional effect of piles in stratum - soils
建立了以適應工程需要的基於二維平面動力分析的簡化整體有限元模型；提出了能有效考慮樁尺寸效應的樁-土無單元劃分技術，在考慮了模型的邊界效應、樁基的水平動力特性和樁土界面的滑移、接觸非線性行為的基礎上，從時域內較為全面的研究了層狀土域中樁基上下部結構的慣性相互作用和運動相互作用兩種基本效應。
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