boundary node 中文意思是什麼
boundary node
解釋
邊界節點-
Taking the results as boundary constraint and the velocity field of horizontal movement after transforming reference frame as the load of fem node, the velocity field of horizontal movement in the region is simulated, the principal strain rate field and maximal shear strain rate field are calculated, the variety characteristics of the two rate fields and relation between the variety characteristics and strong earthquake preparation are analyzed
將反演結果作為邊界約束並將變換參考框架后的水平速度場作為有限元節點載荷，模擬區域內部水平運動場並計算其主應變率場、最大剪應變率場，以分析這兩個時段中這兩種場的變化特徵及其與地震孕育之間的關系。 -
If rigid walls are assumed in the finite element model for the boundary panels, an eight node, isoparametric acoustic finite element model is developed for calculating the acoustic modes of cavities. initially a rectangular enclosure is analyzed in order to study the convergence of the results
利用8節點塊體單元，在剛性壁條件下，對聲場的基本方程進行數值求解，在jifex系統中發展了這種新的有限元模型，計算了封閉空腔的聲學模態（固有頻率和振型） 。 -
Lbie, based on the local boundary equation, adopts the traditional moving least squares ( mls ) approximation which depends on only the values of the nodes in the domain of the problem or along its boundary. the whole process of integration is carried on over a local domain or its local boundary centered at the node in question. the local boundary equation can be rewritten to represent the values of the unknown function at the point of interest, and the essential boundary conditions can be directly and easily enforced by using the green formula and the characters of the dirac function
它以局部邊界積分方程為基礎，採用移動最小二乘近似函數，從而只需要分佈在問題域內及其邊界上的節點的信息值，無需劃分單元；整個積分是在以節點為中心的局部域及其邊界上實現，所以不需要背景積分網格；藉助于格林公式及dirac函數的性質，將局部邊界積分方程轉化為所考慮點的未知函數的邊界積分表達式，便於直接施加本質邊界條件。 -
In order to overcome the drawback of classical fixed boundary models, a finite element model of structure - foundation system has been suggested in this paper for the earthquake response analysis of frame structures, such as beams and columns, are described with plane - stress 4 - node quadrilateral parametric element, and foundations with plane - strain 4 - node quadrilateral parametric element
為了正確處理結構?地基動力相互作用，改善以往固定邊界模型將地震能量全部陷入結構計算模型的不合理狀況，以框架結構為例提出了建築結構地震反應分析的有限元模型及透射邊界，模型中採用四結點平面應力等參單元模擬上部框架結構的樑柱構件。
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