free boundary 中文意思是什麼
free boundary
解釋
自由邊界-
A boundary element - free method for linear elasticity
彈性力學的一種邊界無單元法 -
Boundary element - free method for calculation of electromagnetic field
電磁場計算的邊界無單元法 -
Business training and performing the disinterment being engaged in the china - foreign model to plan to wait for a manager, by traveling together with abroad get in touch with, the boundary sets exchange and cooperation, prosperous chinese model cause, messenger chinese model enhancing the china - foreign model community free greatly in international fad glorious
從事中外模特的發掘培養與演出策劃等經紀業務，通過與國外同行的接觸，增進中外模特界的交流與合作，繁榮中國模特事業，使中國模特在國際時尚界大放光彩。 -
The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難，對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析，首次全面分析了非穿透裂紋端部場三維影響區范圍，給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解，並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。 -
Finally a set of equations with initiate values for boundary value problem is established where the velocity potential and its normal derivative are unknowns. because the model includes the effects of both the time and space to the velocity potential of free surface, it can be applied to strong nonlinear wave. as examples, solitary wave is computed in the numerical flume
推導給出計算域內以所有節點波勢函數和波面位置高度的時間增量為未知量的線性方程組，並同時考慮時間因素和空間變位對波面勢函數的影響，在預設的計算精度下，通過時步內的循環迭代逐一確定每個時步上的波面運動位置，從而建立了一種可適于求解強非線性波浪變形計算的數值模式。 -
Result of numerical simulation shows that the grads of continuous phase " s velocities decreases with the presence of microbubble of which the diameter is 100 / / w, the profiles of air volume fraction in the boundary layers is similar to triangle or echelon, affected by interaction among the particle, there is a saturated air fraction, within the scope of saturated air fraction, increasing the air injection ratio can accrete the friction reduction ratio, under the condition of same air injection ratio, the free - steam velocity is larger, the effect of friction reduction is worse
計算結果表明，直徑為100 m的微氣泡能減小近壁面連續相的速度梯度；微氣泡在邊界層中的濃度分佈近似為三角形或梯形分佈；受粒子間相互作用的影響，存在一飽和濃度；減阻率隨噴氣量的增大而增大，直至飽和噴氣量，此後，增大噴氣量，壁面摩擦阻力變化不大；相同噴氣量下，來流速度越大，減阻率越低。 -
It guarantees that the boundary polygons of the triangulations preserve convexity all the time during the morphing, and that the intermediate triangulation at any time is compatible with the source and target triangulations, i. e. free of self - intersection
本文方法能夠保證網格邊界在變形過程中始終保持凸性，且任意時刻的中間網格與初末網格同構，即不產生自交現象。 -
Many dislocations were emitted from the grainboundary in the front of crack and were driven out of grain boundary area, leaving dislocation free zone in the front of grainboundary. a concept of grainboundary dislocation free zone is proposed. the deformation in the front of crack tip in magnesium was single slip, which resulted in the thinning in the area of crack tip
首次發現裂尖前方晶界對裂尖發射的位錯有排斥作用，裂尖前方的晶界可以向晶界兩側晶粒發射位錯，位錯從晶界發出后迅速離開晶界向前運動，形成晶界無位錯區，首次提出晶界無位錯區的概念。 -
Free form surface reconstruction is a key step in reverse engineering cad modeling. on the basis of segmentation, an approach of b - spline surface reconstruction with complicated boundary constraints is addressed
基於復雜邊界約束和內部散亂逼近的b樣條曲面重構理論和技術的研究是本文的一個重點和創新之處。 -
The model is free from limitation through complex shape of rigid boundary and arbitrary deformation of the free surface, and thus has the adaptability to special practical situation
該方法不受流體變形程度和固邊界形狀的限制，因而具有特定的適應性。 -
Based on the moving least squares method and the finite difference scheme, a new element - free method is proposed and used to simulate horizontal two dimension river flow with complicated boundary
本文通過引入滑動最小二乘法和有限差分法，得到水動力學無單元計演算法並應用於復雜邊界的河道水流運動方程。 -
Theoretical modal analysis is then performed to determine the structure modal parameters for both free - free and fixed - free boundary conditions
並做碳纖維球桿實驗?測經曲線嵌合所擷取出的模態? ?與有限元素分析進?比對驗證。 -
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。 -
The cascadic multigrid method has been shown to be one of the most efficient iterative techniques for solving large boundary value problems, the main advantage of which is coarse - grid - correction free, and as a result it can be viewed as a one - way multigrid method
瀑布型多重網格法是求解大型邊值問題的一種有效的迭代解法，其主要優點是不要求粗網格校正，故又稱單步多重網格法。 -
Abstract : xiao wan hydroelectric installation locate in the boundary between nanjian county and fengqing county of the western of yunnan province. the height of dam is 292 m, and its installed capacity is 4, 200, 000 kilowatt, so it ' s a large - scale water - power engineering. the height of excavation reach to 80 m. so it is sure, that the excavation will influence on the stability of the slop. the stability of the slop is the necessary condition to assure the trouble - free operation of the station
雲南省瀾滄江小灣水電站位於雲南省南澗縣和風慶縣的交界處，最大擬建壩高292m ，裝機容量420萬千瓦，屬特大型水電工程。左岸砂石系統邊坡位於瀾滄江左岸8 ~ #山樑，主體開挖高度達80m ，開挖對邊坡的穩定性產生很大的影響。該邊坡的穩定性對水電工程建設的順利進行。 -
In order to study the characteristics of the stepped spillway overflow comprehensively and seek for the measure to increase the energy dissipation of the stepped spillway at large unit discharge, the method of turbulence numerical simulation and model test are used to study the stepped spillway overflow. in view of the curved free water surface, complicated boundary condition and turbulence flow, it very difficult to simulate the stepped spillway overflow
為了對階梯溢流壩面流場特性進行全面的研究，同時探求在大單寬流量下提高階梯溢流壩消能率的措施，本文採用紊流數值模擬與實驗相結合，數值計算為主、實驗為輔的研究方法對階梯溢流壩面流場進行了較系統深入的研究。 -
Application of boundary singular kernel method in element free galerkin method
邊界奇異權方法在無網格伽遼金方法中的應用 -
The following boundary value problems with the elastic beam are investigated including : both ends are simply supported, one end is fixed and the other end is free, and both ends are both hxed. the other ezld 15 free ， and both ends are both hxed
首先研究了兩端簡單支撐的彈性梁方程中f含有彎矩項u的情形，然後研究了一端固定、一端懸空的彈性梁方程，最後研究了兩端固定的彈性梁方程green函數的性質。 -
This dissertation focuses on the locally classical solution and the globally classical solution of one dimensional combustion free boundary problem. the existence and uniqueness of classical solution locally in time will be obtained by the use of fixed point theorem
本文集中於對一個一維燃燒問題的局部古典解和整體古典解進行研究，應用不動點定理得到局部古典解存在唯一性。 -
Based on 0 - d core physics model, the core parameters of low, moderate and high aspect ratio are calculated by system code. in addition, an advanced plasma configuration for fds system has been proposed, which aims at high beta, high bootstrap current and good confinement. in order to determine the feasibility of fds operation, a two - dimensional time dependent free boundary simulation code has been adopted to simulate time - scale evolution of plasma current profile and boundary position
在建立零維堆芯物理模型基礎上，利用系統分析程序計算了堆芯物理參數，分析了fds -標準環徑比情況的先進運行模式，並對其位形演化進行了放電模擬，獲得比較滿意的結果，為fds -系統概念設計奠定了基礎。
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