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structural boundary
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  结构边界
     Structural Boundary Conditions Recognition and Damage Diagnosis Based on Neural Networks
     基于神经网络的结构边界条件识别和损伤诊断
短句来源
     Structural boundary status can be judged by the structure damping ratio change.
     通过实测桥梁结构阻尼比的变化,可以对结构边界条件、结构材料阻尼特性的改变进行分析判断。
短句来源
     The theory and the procedure for calculating the loading stresses in single layered and double layered plain concrete pavements, treatment of vehicle loading and structural boundary condition, regression of results of finite element calculation, rectification of theoretical solution and determining procedure of comprehensive coefficients adopted in newly issued Specifications of Cement Concrete Pavement Design for highway are introduced in this paper
     介绍新《公路水泥混凝土路面设计规范》中普通混凝土路面结构 (单层和双层 )的荷载应力计算理论和方法 ,车辆荷载和结构边界条件的处理 ,有限元计算结果的回归 ,理论解的修正 ,以及综合系数的确定方法
短句来源
     In the environment vibration experiment, the encountered engineering problem is that the test clamp which supports the structure should reflect or simulate the dynamic characteristics provided by real boundary conditions of the structure, which is a dynamic design or dynamic simulation of structural boundary.
     进行坏境振动试验,需要试验夹具能够反映或模拟实际结构的动力学边界条件,是一个结构动力学边界设计问题。 本文针对结构动力学边界条件的识别和结构边界的动力学设计,开展结构边界动力学条件的时域识别方法和有固有频率和振型要求的结构边界条件动力学设计研究,并将着重于通过工程上可实现的结构模拟真实结构提供给实际结构的动力学边界。
短句来源
     Structural boundary conditions recognition and damage diagnosis are of important practical value for the studies of strutural dynamic properties in laboratory. This paper presents a kind of partition combination neural network model based on subnets. Structural boundary conditions recognition and damage diagnosis are realized by the use of static deflections of reinforced concrete beam as characteristic factors.
     结构边界条件识别和损伤诊断,对于实验室条件下研究结构的动力特性具有重要的实用价值.本文提出了以子网为基础的分区组合式神经网络模型,并以钢筋混凝土梁在静力作用下的挠度作为特征参数,实现了结构的边界条件识别和损伤诊断.
短句来源
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  构造边界
     Location of structural boundary between Ji-Hei orogenic zone and Kaiyuan-Shanchen Town section of North China Platform
     吉黑造山带与华北地台开原—山城镇段构造边界位置
短句来源
     The structural boundary and structural system of the Cenozoic basin are set up with the aid of experimental contrast and geological generalization method.
     用实验对比和地质概化的方法,建立了新生代盆地的构造边界和构造系统;
短句来源
  “structural boundary”译为未确定词的双语例句
     Its structural, boundary condition and the complexity that runs environment are designed , are under construction to run the experience of defending , uncertainty and the extensiveness that is concerned with content , can affect the safety of large dams ,so, inspection and detection work get generally to pay attention.
     其结构、边界条件及运行环境的复杂性,设计、施工、运行维护的经验性、不确定性和涉及内容的广泛性,都会影响大坝的安全,因此,监测与检测工作普遍受到重视。
短句来源
     The 3 σ criterion of reliability theory is applied to analyze and compute the structural responses while the structural boundary conditions are stochastic.
     基于可靠性理论中的3σ准则,对结构的边界条件含有随机因素时的结构响应量进行了分析和计算。
短句来源
     The present study hypothesizes that the structural boundary defining process in linguistic organization is a cognitive basis for the production of linguistic expressions.
     本研究假设:语言的结构和边界是一个对立的统一体。
短句来源
     To deal with the grid movement induced by the structural vibration in the numerical simulation of the FSI problem, a new generation method of the dynamic block- structured grid based on the previous researchers’work is proposed in this dissertation. In this method, the movement of the grid block around the moving structural boundary is combined with the regeneration of the inner-block grid to avoid the aberrance of the grid.
     为了解决流固耦合数值研究中两相介质界面上力与运动关系的传递与协调问题,本文在总结前人研究工作的基础上,提出了一种新的动态块结构数值网格生成技术,该技术将包含壁面运动边界的网格块的运动与块内网格的变形结合起来,共同承担因壁面边界运动引起的域内网格的变形,因此能够满足结构大幅运动的需要,而不引起网格的畸变。
短句来源
     The author also emphasizes on implementation method in engineering of the dynamic simulation of structural boundary conditions.
     一、复杂结构的动力学分析在基础理论和基本方法上已经有了很大的进展,但对于结构界面连接部位和边界条件的准确表述存在困难。
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  structural boundary
The structural boundary of a caldera, defined here as the outermost limits of subsidence and related deformation including downsag, commonly lies outside ring faults and outside the embayed topographic wall.
      
The zero level set of the level set function defines the structural boundary.
      
In this paper, two benchmark problems in structural boundary design are solved using the spectral level set methodology, which is a new approach to topology optimization of interfaces.
      
The computational advantages associated with the utilization of preconditioned iterative equation solvers are quantified for the reanalysis of perturbed shapes using continuum structural boundary element analysis (BEA).
      
In the so-called BIE formulation, it is found that more than one type of adjoint functions are necessary, which are defined by different integral equations at complementary points of the structural boundary.
      
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Gaolan Group is a metamorphic series of medium pressure type of regional dynamo-thermal metamorphism that took place at the margin of a basement fault block in Qilian Caledonides.The metamorphism of Gaolan Group revealed three stages of recrystallization and deformation. In the 1st stage of recrystallization greenschist facies mineral assemblages .were formed and the incorporated deformation produced the schistosity So. In the 2nd or the main recrystallization stege, a series of porphyroblastic index metamorphic...

Gaolan Group is a metamorphic series of medium pressure type of regional dynamo-thermal metamorphism that took place at the margin of a basement fault block in Qilian Caledonides.The metamorphism of Gaolan Group revealed three stages of recrystallization and deformation. In the 1st stage of recrystallization greenschist facies mineral assemblages .were formed and the incorporated deformation produced the schistosity So. In the 2nd or the main recrystallization stege, a series of porphyroblastic index metamorphic minerals such as chlorite, bibtite, almandite, staurolite and kyanite were formed in zones displaying a. therma. dome structure. The isogrades are roughly parallel to each other and cut both the stratigraphic and structural boundaries. This indicates that the metamorphism of Gaolan Group was not under the control of structural subsidence or depth of burying,thus it is invalid to correlate the metamorphic grade to the geother_ mal gradient. On the contrary, the metamorphism was rather depended on a local ries of geothcrm, The deformation that corresponding to the main recrystallization had resulted in the tight multiplefold and the major schistosity Si. IE the 3rd or the mig-matization stage, mismatitic granite and migmatitic granitoid gneiss emplaced into the center of the thermal dome. The so-called sillimanite zone was only related to migma tization and had superimposed ou the previously formed metamorphic pattern. The deformatioi that related to this miguiatization stage is characterised by open folds.Theme words meta.norphic rock,metamorpaic zono, metamorphism, deformation event

皋兰群曾经历三个变质作用阶段,相应有三期变形作用。早期形成大面积低绿片岩相矿物组合及顺层片理;主期在此背景上出现热穹窿形式的递增变质带;晚期沿热中心出现大面积混合花岗岩,附近岩石中形成矽线石迭加区。

The equations of the BEM for the inclined boundary problems are derived and analysed in this paper. By the introduction of local coordinates, the transformation relation between, local coordinates and absolute coordinates is established. It makes the BEM simpler and easier when it is applied to the problems of the inclined boundary of structures. Several examples and the stress analysis of dovetail joint of the engine blade show that the results are satisfactory. The results of BEM are more precise than those...

The equations of the BEM for the inclined boundary problems are derived and analysed in this paper. By the introduction of local coordinates, the transformation relation between, local coordinates and absolute coordinates is established. It makes the BEM simpler and easier when it is applied to the problems of the inclined boundary of structures. Several examples and the stress analysis of dovetail joint of the engine blade show that the results are satisfactory. The results of BEM are more precise than those of FEM, particularly in the calculation of .structural boundary stresses.

本文对处理斜边界问题的边界元法的方程进行了推导和分析,通过引入局部坐标系,建立局部坐标与总坐标间的变换关系,使边界元法在处理结构斜边界问题中更为简捷方便。通过几个算例及某发动机叶片燕尾形榫头的应力分析,证明结果是令人满意的,尤其在计算边界应力时,边界元法比有限元法更为精确。

The structural boundary is represented by a function cf a series of design variables. Then the structural shape optimal design can be represented as a problem of mathematical programming. Three computational examples of shape optimal designs are solved.The three examples are a polygon plate in tension, a bending cantilever and a hollow gravity dam under hydrostatic and gravitational lead. In the computations, recursive quadratic programming is used for mathematical programming and boundary...

The structural boundary is represented by a function cf a series of design variables. Then the structural shape optimal design can be represented as a problem of mathematical programming. Three computational examples of shape optimal designs are solved.The three examples are a polygon plate in tension, a bending cantilever and a hollow gravity dam under hydrostatic and gravitational lead. In the computations, recursive quadratic programming is used for mathematical programming and boundary element method is used for structure analysis. The results have proved to be satisfactory.

结构的边界表示为若干设计变量的函数,结构形状优化问题表示为数学规划问题。本文采用递归二次规划法求解数学规划问题,采用边界元法做结构分析,求解了受拉多边形板、受弯悬臂梁和空腹重力坝的形状优化问题。结果表明本文的求解方案非常有效。

 
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